diff --git a/HISTORY.md b/HISTORY.md
index b831dadee8a..d5ad1a589fd 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,11 @@
 # Keyman Version History
 
+## 18.0.153 alpha 2024-12-05
+
+* feat(developer,common): verify normalization of strings (#12748)
+* chore(core): Add link to Keyman Glossary (#12774)
+* test(common/web/types): unit tests for file-types (#12716)
+
 ## 18.0.152 alpha 2024-12-04
 
 * refactor(mac): pass kmx data blob to keyman core instead of file path (#12760)
diff --git a/VERSION.md b/VERSION.md
index 6269a6496fb..153289471d0 100644
--- a/VERSION.md
+++ b/VERSION.md
@@ -1 +1 @@
-18.0.153
\ No newline at end of file
+18.0.154
\ No newline at end of file
diff --git a/android/KMAPro/kMAPro/src/main/res/values-it-rIT/strings.xml b/android/KMAPro/kMAPro/src/main/res/values-it-rIT/strings.xml
index a475ae37255..de474402c06 100644
--- a/android/KMAPro/kMAPro/src/main/res/values-it-rIT/strings.xml
+++ b/android/KMAPro/kMAPro/src/main/res/values-it-rIT/strings.xml
@@ -68,7 +68,7 @@
   <!-- Context: Keyman Settings menu -->
   <string name="adjust_keyboard_height" comment="Menu action to adjust keyboard height">Regola altezza tastiera</string>
   <!-- Context: Keyman Settings menu -->
-  <string name="adjust_longpress_delay" comment="Menu action to adjust longpress delay duration">Adjust longpress delay</string>
+  <string name="adjust_longpress_delay" comment="Menu action to adjust longpress delay duration">Regola ritardo pressione prolungata</string>
   <!-- Context: Keyman Settings menu -->
   <string name="spacebar_caption" comment="Menu action to set the spacebar caption">Didascalia barra spaziatrice</string>
   <!-- Context: Keyman Settings menu / Spacebar caption -->
@@ -89,11 +89,11 @@
   <string name="spacebar_caption_hint_blank" comment="Spacebar caption hint - blank">Non mostrare la didascalia sulla barra spaziatrice</string>
   <!-- Context: Keyman Settings menu / Haptic feedback -->
   <string name="haptic_feedback" comment="haptic feedback on key press">Vibra durante la digitazione</string>
-  <!-- Context: Keyman Settings menu -->
+  <!-- Context: Keyman Settings menu. Removed in Keyman 18 -->
   <string name="show_banner" comment="text suggestions banner">Mostra sempre il banner</string>
-  <!-- Context: Keyman Settings menu -->
+  <!-- Context: Keyman Settings menu. Removed in Keyman 18 -->
   <string name="show_banner_on" comment="Description when toggle is on">Da attuare</string>
-  <!-- Context: Keyman Settings menu -->
+  <!-- Context: Keyman Settings menu. Removed in Keyman 18 -->
   <string name="show_banner_off" comment="Description when toggle is off">Quando è spento, mostrato solo quando il testo predittivo è abilitato</string>
   <!-- Context: Keyman Settings menu -->
   <string name="show_send_crash_report" comment="permission for sending crash reports">Consenti l\'invio di segnalazioni di crash attraverso la rete</string>
@@ -126,13 +126,13 @@
   <!-- Context: Adjust Keyboard Height menu -->
   <string name="reset_to_defaults" comment="Button to reset to default heights">Ripristina impostazioni predefinite</string>
   <!-- Context: Adjust Longpress Delay Time menu -->
-  <string name="longpress_delay_time" comment="Current longpress delay time (seconds)">Delay Time: %1$.1f seconds</string>
+  <string name="longpress_delay_time" comment="Current longpress delay time (seconds)">Tempo ritardo: %1$.1f secondi</string>
   <!-- Context: Adjust Longpress Delay Time menu -->
-  <string name="ic_delay_time_up" comment="Make longpress delay longer">Delay time longer</string>
+  <string name="ic_delay_time_up" comment="Make longpress delay longer">Tempo ritardo maggiore</string>
   <!-- Context: Adjust Longpress Delay Time menu -->
-  <string name="ic_delay_time_down" comment="Make longpress delay shorter">Delay time shorter</string>
+  <string name="ic_delay_time_down" comment="Make longpress delay shorter">Tempo ritardo minore</string>
   <!-- Context: Adjust Longpress Delay Time menu -->
-  <string name="ic_longpress_delay_slider" comment="Adjust longpress delay time">Longpress delay time slider</string>
+  <string name="ic_longpress_delay_slider" comment="Adjust longpress delay time">Cursore tempo ritardo pressione prolungata</string>
   <!-- Context: Keyman Web Browser -->
   <string name="hint_text" comment="Prompt to type in the browser search bar">Cerca o digita URL</string>
   <!-- Context: Keyman Web Browser -->
diff --git a/android/KMEA/app/src/main/res/values-it-rIT/strings.xml b/android/KMEA/app/src/main/res/values-it-rIT/strings.xml
index da1e3531a2b..7dce8252b27 100644
--- a/android/KMEA/app/src/main/res/values-it-rIT/strings.xml
+++ b/android/KMEA/app/src/main/res/values-it-rIT/strings.xml
@@ -133,10 +133,15 @@
     <string name="keyboard_install_toast" comment="Notification when a keyboard is installed">%1$s tastiera installata</string>
     <!-- Context: Language Settings Keyboard uninstall strings -->
     <string name="keyboard_deleted_toast" comment="Notification when a keyboard is deleted">Tastiera eliminata</string>
-    <!-- Context: Language Settings menu strings -->
+    <!-- Context: Language Settings menu strings. Removed in Keyman 18 -->
     <string name="enable_corrections" comment="Enable corrections from the suggestion banner">Abilita correzioni</string>
-    <!-- Context: Language Settings menu strings -->
+    <!-- Context: Language Settings menu strings. Removed in Keyman 18 -->
     <string name="enable_predictions" comment="Enable predictions from the suggestion banner">Abilita previsioni</string>
+    <!-- Context: Language Settings menu strings - radio buttons -->
+    <string name="suggestions_radio_0" comment="Predictions and corrections disabled">Disabilita suggerimenti</string>
+    <string name="suggestions_radio_1" comment="Suggestions Enabled: Predictions with no corrections">Solo previsioni</string>
+    <string name="suggestions_radio_2" comment="Suggestions Enabled: Predictions with corrections">Previsioni con correzioni</string>
+    <string name="suggestions_radio_3" comment="Suggestions Enabled: Predictions with auto-corrections">Previsioni con correzioni automatiche</string>
     <!-- Context: Language Settings menu strings -->
     <string name="model_label">Dizionario</string>
     <plurals name="model_count">
diff --git a/common/web/types/tests/util/file-types.tests.ts b/common/web/types/tests/util/file-types.tests.ts
new file mode 100644
index 00000000000..3f4d6870918
--- /dev/null
+++ b/common/web/types/tests/util/file-types.tests.ts
@@ -0,0 +1,234 @@
+/*
+ * Keyman is copyright (C) SIL Global. MIT License.
+ * 
+ * Created by Dr Mark C. Sinclair on 2024-11-29
+ * 
+ * Test code for file-types.ts
+ */
+
+import 'mocha';
+import { assert } from 'chai';
+import {
+  ALL,
+  ALL_SOURCE,
+  ALL_BINARY,
+  Binary,
+  fromFilename,
+  removeExtension,
+  sourceOrBinaryTypeFromFilename,
+  sourceTypeFromFilename,
+  binaryTypeFromFilename,
+  filenameIs,
+  replaceExtension,
+} from '../../src/util/file-types.js';
+
+describe('Test of File-Types', () => {
+  describe('Test of fromFilename()', () => {
+    it('can extract Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = fromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('can extract Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = fromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('can extract unmatched file extension', () => {
+      const ext = ".cpp";
+      assert.isFalse((Object.values(ALL_SOURCE) as string[]).includes(ext));
+      const filename = `file${ext}`;
+      const actual   = fromFilename(filename);
+      assert.deepEqual(actual, ext);
+    });
+    it('returns empty string for no file extension', () => {
+      const filename = `file`;
+      const actual   = fromFilename(filename);
+      assert.deepEqual(actual, "");
+    });
+    it('can extract upper case file extension', () => {
+      const ext          = ALL_SOURCE[0];
+      const upperCaseExt = ext.toUpperCase();
+      const filename     = `file${upperCaseExt}`;
+      const actual       = fromFilename(filename);
+      assert.deepEqual(actual, ext);
+    });
+  });
+  describe('Test of removeExtension()', () => {
+    it('can remove Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = removeExtension(filename);
+        assert.deepEqual(actual, "file");
+      });
+    });
+    it('can remove Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = removeExtension(filename);
+        assert.deepEqual(actual, "file");
+      });
+    });
+    it('can handle no file extension', () => {
+      const filename = removeExtension("file");
+      assert.deepEqual(filename, "file");
+    });
+  });
+  describe('Test of sourceOrBinaryTypeFromFilename()', () => {
+    it('can extract Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = sourceOrBinaryTypeFromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('can extract Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = sourceOrBinaryTypeFromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('returns null for unmatched file extension', () => {
+      const ext = ".cpp";
+      assert.isFalse((Object.values(ALL) as string[]).includes(ext));
+      const filename = `file${ext}`;
+      const actual   = sourceOrBinaryTypeFromFilename(filename);
+      assert.isNull(actual);
+    });
+    it('can extract upper case file extension', () => {
+      const ext          = ALL[0];
+      const upperCaseExt = ext.toUpperCase();
+      const filename     = `file${upperCaseExt}`;
+      const actual       = sourceOrBinaryTypeFromFilename(filename);
+      assert.deepEqual(actual, ext);
+    });
+  });
+  describe('Test of sourceTypeFromFilename()', () => {
+    it('can extract Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = sourceTypeFromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('returns null for a Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = sourceTypeFromFilename(filename);
+        assert.isNull(actual);
+      });
+    });
+    it('returns null for unmatched file extension', () => {
+      const ext = ".cpp";
+      assert.isFalse((Object.values(ALL_SOURCE) as string[]).includes(ext));
+      const filename = `file${ext}`;
+      const actual   = sourceTypeFromFilename(filename);
+      assert.isNull(actual);
+    });
+    it('can extract upper case file extension', () => {
+      const ext          = ALL_SOURCE[0];
+      const upperCaseExt = ext.toUpperCase();
+      const filename     = `file${upperCaseExt}`;
+      const actual       = sourceTypeFromFilename(filename);
+      assert.deepEqual(actual, ext);
+    });
+  });
+  describe('Test of binaryTypeFromFilename()', () => {
+    it('returns null for a Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = binaryTypeFromFilename(filename);
+        assert.isNull(actual);
+      });
+    });
+    it('can extract Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = binaryTypeFromFilename(filename);
+        assert.deepEqual(actual, ext);
+      });
+    });
+    it('returns null for unmatched file extension', () => {
+      const ext = ".cpp";
+      assert.isFalse((Object.values(ALL_BINARY) as string[]).includes(ext));
+      const filename = `file${ext}`;
+      const actual   = binaryTypeFromFilename(filename);
+      assert.isNull(actual);
+    });
+    it('can extract upper case file extension', () => {
+      const ext          = ALL_BINARY[0];
+      const upperCaseExt = ext.toUpperCase();
+      const filename     = `file${upperCaseExt}`;
+      const actual       = binaryTypeFromFilename(filename);
+      assert.deepEqual(actual, ext);
+    });
+  });
+  describe('Test of filenameIs()', () => {
+    it('can identify Source file extension', () => {
+      ALL_SOURCE.forEach((ext) => {
+        const filename = `file${ext}`;
+        const actual   = filenameIs(filename, ext);
+        assert.isTrue(actual);
+      });
+    });
+    it('can identify Binary file extension', () => {
+      ALL_BINARY.forEach((ext) => {
+        const filename = `file${ext}`;
+        if (ext == Binary.Model) { // Special case for .model.js
+          const actual = filenameIs(filename, Binary.WebKeyboard);
+          assert.isFalse(actual);
+        }
+        const actual = filenameIs(filename, ext);
+        assert.isTrue(actual);
+      });
+    });
+    it('can identify upper case file extension', () => {
+      const ext          = ALL[0];
+      const upperCaseExt = ext.toUpperCase();
+      const filename     = `file${upperCaseExt}`;
+      const actual       = filenameIs(filename, ext);
+      assert.isTrue(actual);
+    });
+  });
+  describe('Test of replaceExtension()', () => {
+    it('can replace an extension', () => {
+      const oldExt      = ".cpp";
+      const newExt      = ".js";
+      const oldFilename = `file${oldExt}`;
+      const newFilename = `file${newExt}`;
+      const actual      = replaceExtension(oldFilename, oldExt, newExt);
+      assert.deepEqual(actual, newFilename);
+    });
+    it('should return null for incorrect old extension (too short)', () => {
+      const oldExt      = ".ts";
+      const newExt      = ".js";
+      const oldFilename = `file.c`;
+      const actual      = replaceExtension(oldFilename, oldExt, newExt);
+      assert.isNull(actual);
+    });
+    it('should return null for incorrect old extension (too long)', () => {
+      const oldExt      = ".ts";
+      const newExt      = ".js";
+      const oldFilename = `file.cpp`;
+      const actual      = replaceExtension(oldFilename, oldExt, newExt);
+      assert.isNull(actual);
+    });
+    // it('should return null for null old extension', () => {
+    //   const newExt      = ".js";
+    //   const oldFilename = `file.ts`;
+    //   const actual      = replaceExtension(oldFilename, null, newExt);
+    //   assert.isNull(actual);
+    // });
+    // it('should return null for null new extension', () => {
+    //   const oldExt      = ".ts";
+    //   const oldFilename = `file.ts`;
+    //   const actual      = replaceExtension(oldFilename, oldExt, null);
+    //   assert.isNull(actual);
+    // });
+  });
+});
diff --git a/core/docs/api/background.md b/core/docs/api/background.md
index b0d09da10f7..d4c638f0ce7 100644
--- a/core/docs/api/background.md
+++ b/core/docs/api/background.md
@@ -396,7 +396,7 @@ typedef enum { KM_CORE_FALSE = 0, KM_CORE_TRUE = 1 } km_core_bool;
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/changes.md b/core/docs/api/changes.md
index ab8a2e287a1..e5736494abc 100644
--- a/core/docs/api/changes.md
+++ b/core/docs/api/changes.md
@@ -43,7 +43,7 @@ title: Changes - Keyman Core API
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/index.md b/core/docs/api/index.md
index c33246f7f44..94bb517654c 100644
--- a/core/docs/api/index.md
+++ b/core/docs/api/index.md
@@ -104,7 +104,7 @@ Caps Lock.
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/keyboards.md b/core/docs/api/keyboards.md
index b9312a78d94..3439e20722b 100644
--- a/core/docs/api/keyboards.md
+++ b/core/docs/api/keyboards.md
@@ -102,28 +102,35 @@ typedef struct {
 
 -------------------------------------------------------------------------------
 
-# km_core_keyboard_load() {#km_core_keyboard_load}
+# km_core_keyboard_load_from_blob() {#km_core_keyboard_load_from_blob}
 
 ## Description
 
-Parse and load keyboard from the supplied path and a pointer to the loaded keyboard
-into the out paramter.
+Parse and load a keyboard from the supplied blob and return a pointer to the
+loaded keyboard in the out parameter.
 
 ## Specification
 
 ```c
 KMN_API
 km_core_status
-km_core_keyboard_load(km_core_path_name kb_path,
-                     km_core_keyboard **keyboard);
+km_core_keyboard_load_from_blob(const km_core_path_name kb_name,
+                                const void* blob,
+                                const size_t blob_size,
+                                km_core_keyboard** keyboard);
 
 ```
 
 ## Parameters
 
-`kb_path`
-: On Windows, a UTF-16 string; on other platforms, a C string:
-  contains a valid path to the keyboard file.
+`kb_name`
+: a string with the name of the keyboard.
+
+`blob`
+: a byte array containing the content of a KMX/KMX+ file.
+
+`blob_size`
+: a size_t variable with the size of the blob in bytes.
 
 `keyboard`
 : A pointer to result variable: A pointer to the opaque keyboard
@@ -154,7 +161,7 @@ km_core_keyboard_load(km_core_path_name kb_path,
 ## Description
 
 Free the allocated memory belonging to an opaque keyboard object previously
-returned by [km_core_keyboard_load].
+returned by [km_core_keyboard_load_from_blob].
 
 ## Specification
 
@@ -637,7 +644,7 @@ km_core_state_to_json(km_core_state const *state,
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/options.md b/core/docs/api/options.md
index e5a171d6fea..41d5fe28c9a 100644
--- a/core/docs/api/options.md
+++ b/core/docs/api/options.md
@@ -263,7 +263,7 @@ km_core_state_options_to_json(km_core_state const *state,
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/processor.md b/core/docs/api/processor.md
index 0cd491ba81a..c72d743bb9c 100644
--- a/core/docs/api/processor.md
+++ b/core/docs/api/processor.md
@@ -177,7 +177,7 @@ enum km_core_event_code {
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/docs/api/state.md b/core/docs/api/state.md
index 3c0c57a6aa5..0292d9f8a59 100644
--- a/core/docs/api/state.md
+++ b/core/docs/api/state.md
@@ -264,7 +264,7 @@ An opaque pointer to a state object.
 [km_core_keyboard_attrs]: keyboards#km_core_keyboard_attrs "km_core_keyboard_attrs struct"
 [km_core_keyboard_key]: keyboards#km_core_keyboard_key "km_core_keyboard_key struct"
 [km_core_keyboard_imx]: keyboards#km_core_keyboard_imx "km_core_keyboard_imx struct"
-[km_core_keyboard_load]: keyboards#km_core_keyboard_load "km_core_keyboard_load function"
+[km_core_keyboard_load_from_blob]: keyboards#km_core_keyboard_load_from_blob "km_core_keyboard_load_from_blob function"
 [km_core_keyboard_dispose]: keyboards#km_core_keyboard_dispose "km_core_keyboard_dispose function"
 [km_core_keyboard_get_attrs]: keyboards#km_core_keyboard_get_attrs "km_core_keyboard_get_attrs function"
 [km_core_keyboard_get_key_list]: keyboards#km_core_keyboard_get_key_list "km_core_keyboard_get_key_list function"
diff --git a/core/include/keyman/keyman_core_api.h b/core/include/keyman/keyman_core_api.h
index 3c41182bab2..7863689296d 100644
--- a/core/include/keyman/keyman_core_api.h
+++ b/core/include/keyman/keyman_core_api.h
@@ -1096,58 +1096,6 @@ typedef struct {
 
 -------------------------------------------------------------------------------
 
-# km_core_keyboard_load()
-
-## Description
-
-DEPRECATED: use [km_core_keyboard_load_from_blob] instead.
-
-Parse and load keyboard from the supplied path and a pointer to the loaded keyboard
-into the out parameter.
-
-## Specification
-
-```c */
-// TODO-web-core: Deprecate this function (#12497)
-// KMN_DEPRECATED_API
-KMN_API
-km_core_status
-km_core_keyboard_load(km_core_path_name kb_path,
-                     km_core_keyboard **keyboard);
-
-/*
-```
-
-## Parameters
-
-`kb_path`
-: On Windows, a UTF-16 string; on other platforms, a C string:
-  contains a valid path to the keyboard file.
-
-`keyboard`
-: A pointer to result variable: A pointer to the opaque keyboard
-  object returned by the Processor. This memory must be freed with a
-  call to [km_core_keyboard_dispose].
-
-## Returns
-
-`KM_CORE_STATUS_OK`
-: On success.
-
-`KM_CORE_STATUS_NO_MEM`
-: In the event an internal memory allocation fails.
-
-`KM_CORE_STATUS_IO_ERROR`
-: In the event the keyboard file is unparseable for any reason
-
-`KM_CORE_STATUS_INVALID_ARGUMENT`
-: In the event the file doesn't exist or is inaccesible or `keyboard` is null.
-
-`KM_CORE_STATUS_OS_ERROR`
-: Bit 31 (high bit) set, bits 0-30 are an OS-specific error code.
-
--------------------------------------------------------------------------------
-
 # km_core_keyboard_load_from_blob()
 
 ## Description
@@ -1207,7 +1155,7 @@ km_core_status km_core_keyboard_load_from_blob(const km_core_path_name kb_name,
 ## Description
 
 Free the allocated memory belonging to an opaque keyboard object previously
-returned by [km_core_keyboard_load].
+returned by [km_core_keyboard_load_from_blob].
 
 ## Specification
 
diff --git a/core/src/km_core_keyboard_api.cpp b/core/src/km_core_keyboard_api.cpp
index abaf3bfaa08..70d37fa63b0 100644
--- a/core/src/km_core_keyboard_api.cpp
+++ b/core/src/km_core_keyboard_api.cpp
@@ -40,16 +40,18 @@ namespace
 }  // namespace
 
 km_core_status
-keyboard_load_from_blob_internal(
+km_core_keyboard_load_from_blob(
   const km_core_path_name kb_name,
-  const std::vector<uint8_t> & buf,
+  const void* blob,
+  const size_t blob_size,
   km_core_keyboard** keyboard
 ) {
   assert(keyboard);
-  if (!keyboard) {
+  if (!keyboard || !blob) {
     return KM_CORE_STATUS_INVALID_ARGUMENT;
   }
 
+  std::vector<uint8_t> buf((uint8_t*)blob, (uint8_t*)blob + blob_size);
   *keyboard = nullptr;
   try {
     abstract_processor* kp = processor_factory(kb_name, buf);
@@ -65,88 +67,6 @@ keyboard_load_from_blob_internal(
   return KM_CORE_STATUS_OK;
 }
 
-km_core_status
-km_core_keyboard_load_from_blob(
-  const km_core_path_name kb_name,
-  const void* blob,
-  const size_t blob_size,
-  km_core_keyboard** keyboard
-) {
-  assert(keyboard);
-  if (!keyboard || !blob) {
-    return KM_CORE_STATUS_INVALID_ARGUMENT;
-  }
-
-  std::vector<uint8_t> buf((uint8_t*)blob, (uint8_t*)blob + blob_size);
-  return keyboard_load_from_blob_internal(kb_name, buf, keyboard);
-}
-
-// TODO-web-core: Remove this code when we remove the deprecated km_core_keyboard_load method
-// BEGIN DEPRECATED
-#include <fstream>
-std::vector<uint8_t> load_kmx_file(path const& kb_path) {
-  std::vector<uint8_t> data;
-  std::ifstream file(static_cast<std::string>(kb_path), std::ios::binary | std::ios::ate);
-  if (!file.good()) {
-    return std::vector<uint8_t>();
-  }
-  const std::streamsize size = file.tellg();
-  if (size >= KMX_MAX_ALLOWED_FILE_SIZE) {
-    return std::vector<uint8_t>();
-  }
-
-  file.seekg(0, std::ios::beg);
-
-  data.resize((size_t)size);
-  if (!file.read((char*)data.data(), size)) {
-    return std::vector<uint8_t>();
-  }
-
-  file.close();
-  return data;
-}
-
-KMN_DEPRECATED_API
-km_core_status
-km_core_keyboard_load(km_core_path_name kb, km_core_keyboard **keyboard)
-{
-  assert(keyboard);
-  if (!keyboard || !kb) {
-    return KM_CORE_STATUS_INVALID_ARGUMENT;
-  }
-
-  path const kb_path(kb);
-  try
-  {
-    abstract_processor* kp = nullptr;
-    km_core_status status = KM_CORE_STATUS_OK;
-    // Some legacy packages may include upper-case file extensions
-    if (kb_path.suffix() == ".kmx" || kb_path.suffix() == ".KMX") {
-      std::vector<uint8_t> buf = load_kmx_file(kb_path);
-      status = keyboard_load_from_blob_internal(kb_path.stem().c_str(), buf, (km_core_keyboard**)&kp);
-      if (status != KM_CORE_STATUS_OK) {
-        return status;
-      }
-    } else if (kb_path.suffix() == ".mock") {
-      kp = new mock_processor(kb_path);
-    } else {
-      kp = new null_processor();
-    }
-    status = kp->validate();
-    if (status != KM_CORE_STATUS_OK) {
-      delete kp;
-      return status;
-    }
-    *keyboard = static_cast<km_core_keyboard *>(kp);
-  }
-  catch (std::bad_alloc &)
-  {
-    return KM_CORE_STATUS_NO_MEM;
-  }
-  return KM_CORE_STATUS_OK;
-}
-// END DEPRECATED
-
 void
 km_core_keyboard_dispose(km_core_keyboard *keyboard)
 {
diff --git a/core/tests/unit/km_core_keyboard_api.tests.cpp b/core/tests/unit/km_core_keyboard_api.tests.cpp
index 184ec130c42..2898f9e7cd7 100644
--- a/core/tests/unit/km_core_keyboard_api.tests.cpp
+++ b/core/tests/unit/km_core_keyboard_api.tests.cpp
@@ -10,20 +10,6 @@
 
 km::core::path test_dir;
 
-// TODO-web-core: Remove this code when we remove the deprecated km_core_keyboard_load method
-// BEGIN DEPRECATED
-#if defined(__GNUC__) || defined(__clang__)
-#define PRAGMA(X) _Pragma(#X)
-#define DISABLE_WARNING_PUSH PRAGMA(GCC diagnostic push)
-#define DISABLE_WARNING_POP PRAGMA(GCC diagnostic pop)
-#define DISABLE_WARNING(W) PRAGMA(GCC diagnostic ignored #W)
-#define DISABLE_WARNING_DEPRECATED_DECLARATIONS DISABLE_WARNING(-Wdeprecated-declarations)
-#else
-#define DISABLE_WARNING_PUSH
-#define DISABLE_WARNING_POP
-#define DISABLE_WARNING_DEPRECATED_DECLARATIONS
-#endif
-
 class KmCoreKeyboardApiTests : public testing::Test {
 protected:
   km_core_keyboard* keyboard = nullptr;
@@ -35,22 +21,6 @@ class KmCoreKeyboardApiTests : public testing::Test {
     }
 };
 
-TEST_F(KmCoreKeyboardApiTests, LoadFromFile) {
-  // Setup
-  km::core::path kmxfile = km::core::path(test_dir / "kmx/k_020___deadkeys_and_backspace.kmx");
-
-  // Execute
-  DISABLE_WARNING_PUSH
-  DISABLE_WARNING_DEPRECATED_DECLARATIONS
-  auto status = km_core_keyboard_load(kmxfile.c_str(), &this->keyboard);
-  DISABLE_WARNING_POP
-
-  // Verify
-  EXPECT_EQ(status, KM_CORE_STATUS_OK);
-  EXPECT_TRUE(this->keyboard != nullptr);
-}
-// END DEPRECATED
-
 TEST_F(KmCoreKeyboardApiTests, LoadFromBlob) {
   // Setup
   km::core::path kmxfile = km::core::path(test_dir / "kmx/k_020___deadkeys_and_backspace.kmx");
diff --git a/core/tests/unit/ldml/core_ldml_min.tests.cpp b/core/tests/unit/ldml/core_ldml_min.tests.cpp
index fadd62a2a45..9657b104b51 100644
--- a/core/tests/unit/ldml/core_ldml_min.tests.cpp
+++ b/core/tests/unit/ldml/core_ldml_min.tests.cpp
@@ -26,7 +26,7 @@ int main(int argc, const char *argv[]) {
     auto blob = km::tests::load_kmx_file(nowhere);
     status = km_core_keyboard_load_from_blob(nowhere, blob.data(), blob.size(), &test_kb);
 
-    std::cerr << "null km_core_keyboard_load = " << status << std::endl;
+    std::cerr << "null km_core_keyboard_load_from_blob = " << status << std::endl;
     test_assert(status == KM_CORE_STATUS_INVALID_ARGUMENT);
     test_assert(test_kb == nullptr);
     km_core_keyboard_dispose(test_kb);
diff --git a/developer/docs/help/reference/kmc/cli/reference.md b/developer/docs/help/reference/kmc/cli/reference.md
index 1de0b64c76d..763d5ad71f8 100644
--- a/developer/docs/help/reference/kmc/cli/reference.md
+++ b/developer/docs/help/reference/kmc/cli/reference.md
@@ -493,9 +493,8 @@ following sources:
   `author.bcp47.uniq` id pattern, or a keyboard id pattern (where period `.` is
   not permitted)
 * A GitHub repository or subfolder within a repository that matches the Keyman
-  keyboard/model repository layout. The branch name is optional, and will use
-  the default branch from the repository if omitted. For example,
-  `github:keyman-keyboards/khmer_angkor:main:/khmer_angkor.kpj`
+  keyboard/model repository layout. For example,
+  `https://github.com/keyman-keyboards/khmer_angkor/tree/main/khmer_angkor.kpj`
 
 `-o, --out-path <filename>`
 
diff --git a/developer/src/common/web/test-helpers/TestCompilerCallbacks.ts b/developer/src/common/web/test-helpers/TestCompilerCallbacks.ts
new file mode 100644
index 00000000000..a0b0464e218
--- /dev/null
+++ b/developer/src/common/web/test-helpers/TestCompilerCallbacks.ts
@@ -0,0 +1,168 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import { CompilerEvent, CompilerCallbacks, CompilerPathCallbacks, CompilerFileSystemCallbacks,
+  CompilerError, CompilerNetAsyncCallbacks, DefaultCompilerFileSystemAsyncCallbacks,
+  CompilerFileSystemAsyncCallbacks } from '@keymanapp/developer-utils';
+import { fileURLToPath } from 'url';
+
+const { TEST_SAVE_FIXTURES } = process.env;
+
+/**
+ * A CompilerCallbacks implementation for testing
+ */
+export class TestCompilerCallbacks implements CompilerCallbacks {
+  /* TestCompilerCallbacks */
+
+  messages: CompilerEvent[] = [];
+  readonly _net: TestCompilerNetAsyncCallbacks;
+  readonly _fsAsync: DefaultCompilerFileSystemAsyncCallbacks = new DefaultCompilerFileSystemAsyncCallbacks(this);
+
+  constructor(basePath?: string) {
+    if(basePath) {
+      this._net = new TestCompilerNetAsyncCallbacks(basePath);
+    }
+  }
+
+  clear() {
+    this.messages = [];
+  }
+
+  printMessages() {
+    if(this.messages.length) {
+      process.stdout.write(CompilerError.formatEvent(this.messages));
+    }
+  }
+
+  hasMessage(code: number): boolean {
+    return this.messages.find((item) => item.code == code) === undefined ? false : true;
+  }
+
+  fileURLToPath(url: string | URL): string {
+    return fileURLToPath(url);
+  }
+
+  /** true of at least one error */
+  hasError(): boolean {
+    return CompilerError.hasError(this.messages);
+  }
+
+  /* CompilerCallbacks */
+
+  loadFile(filename: string): Uint8Array {
+    try {
+      return fs.readFileSync(filename);
+    } catch(e) {
+      if (e.code === 'ENOENT') {
+        return null;
+      } else {
+        throw e;
+      }
+    }
+  }
+
+  fileSize(filename: string): number {
+    return fs.statSync(filename)?.size;
+  }
+
+  isDirectory(filename: string): boolean {
+    return fs.statSync(filename)?.isDirectory();
+  }
+
+  get path(): CompilerPathCallbacks {
+    return {
+      ...path,
+      isAbsolute: path.win32.isAbsolute
+    };
+  }
+
+  get fs(): CompilerFileSystemCallbacks {
+    return fs;
+  }
+
+  get net(): CompilerNetAsyncCallbacks {
+    return this._net;
+  }
+
+  get fsAsync(): CompilerFileSystemAsyncCallbacks {
+    return this._fsAsync;
+  }
+
+  resolveFilename(baseFilename: string, filename: string): string {
+    const basePath =
+      baseFilename.endsWith('/') || baseFilename.endsWith('\\') ?
+      baseFilename :
+      path.dirname(baseFilename);
+    // Transform separators to platform separators -- we are agnostic
+    // in our use here but path prefers files may use
+    // either / or \, although older kps files were always \.
+    if(path.sep == '/') {
+      filename = filename.replace(/\\/g, '/');
+    } else {
+      filename = filename.replace(/\//g, '\\');
+    }
+    if(!path.isAbsolute(filename)) {
+      filename = path.resolve(basePath, filename);
+    }
+    return filename;
+  }
+
+  reportMessage(event: CompilerEvent): void {
+    // console.log(event.message);
+    this.messages.push(event);
+  }
+
+  debug(msg: string) {
+    console.debug(msg);
+  }
+};
+
+class TestCompilerNetAsyncCallbacks implements CompilerNetAsyncCallbacks {
+  constructor(private basePath: string) {
+  }
+
+  urlToPath(url: string): string {
+    const p = new URL(url);
+    return path.join(this.basePath, p.hostname, p.pathname.replaceAll(/[^a-z0-9_.!@#$%() -]/ig, '#'));
+  }
+
+  async fetchBlob(url: string): Promise<Uint8Array> {
+    const p = this.urlToPath(url);
+
+    if(TEST_SAVE_FIXTURES) {
+      // When TEST_SAVE_FIXTURES env variable is set, we will do the actual
+      // fetch from the origin so that we can build the fixtures easily
+      console.log(`Downloading file ${url} --> ${p}`);
+      let response: Response;
+      try {
+        response = await fetch(url);
+      } catch(e) {
+        console.error(`failed to download ${url}`);
+        console.error(e);
+        throw e; // yes, we want to abort the download
+      }
+
+      fs.mkdirSync(path.dirname(p), {recursive: true});
+      if(!response.ok) {
+        // We won't save a file, just delete any existing file
+        if(fs.existsSync(p)) {
+          fs.rmSync(p);
+        }
+      } else {
+        const data = new Uint8Array(await response.arrayBuffer());
+        fs.writeFileSync(p, data);
+      }
+    }
+
+    if(!fs.existsSync(p)) {
+      // missing file, this is okay
+      return null;
+    }
+    const data: Uint8Array = fs.readFileSync(p);
+    return data;
+  }
+
+  async fetchJSON(url: string): Promise<any> {
+    const data = await this.fetchBlob(url);
+    return data ? JSON.parse(new TextDecoder().decode(data)) : null;
+  }
+}
diff --git a/developer/src/common/web/test-helpers/index.ts b/developer/src/common/web/test-helpers/index.ts
index ec1fcaddfd5..6970ed3cc80 100644
--- a/developer/src/common/web/test-helpers/index.ts
+++ b/developer/src/common/web/test-helpers/index.ts
@@ -1,164 +1,2 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import { CompilerEvent, CompilerCallbacks, CompilerPathCallbacks, CompilerFileSystemCallbacks, CompilerError, CompilerNetAsyncCallbacks, DefaultCompilerFileSystemAsyncCallbacks, CompilerFileSystemAsyncCallbacks } from '@keymanapp/developer-utils';
-import { fileURLToPath } from 'url';
 export { verifyCompilerMessagesObject } from './verifyCompilerMessagesObject.js';
-
-const { TEST_SAVE_FIXTURES } = process.env;
-
-class TestCompilerNetAsyncCallbacks implements CompilerNetAsyncCallbacks {
-  constructor(private basePath: string) {
-  }
-
-  urlToPath(url: string): string {
-    const p = new URL(url);
-    return path.join(this.basePath, p.hostname, p.pathname.replaceAll(/[^a-z0-9_.!@#$%() -]/ig, '#'));
-  }
-
-  async fetchBlob(url: string): Promise<Uint8Array> {
-    const p = this.urlToPath(url);
-
-    if(TEST_SAVE_FIXTURES) {
-      // When TEST_SAVE_FIXTURES env variable is set, we will do the actual
-      // fetch from the origin so that we can build the fixtures easily
-      console.log(`Downloading file ${url} --> ${p}`);
-      let response: Response;
-      try {
-        response = await fetch(url);
-      } catch(e) {
-        console.error(`failed to download ${url}`);
-        console.error(e);
-        throw e; // yes, we want to abort the download
-      }
-
-      fs.mkdirSync(path.dirname(p), {recursive: true});
-      if(!response.ok) {
-        // We won't save a file, just delete any existing file
-        if(fs.existsSync(p)) {
-          fs.rmSync(p);
-        }
-      } else {
-        const data = new Uint8Array(await response.arrayBuffer());
-        fs.writeFileSync(p, data);
-      }
-    }
-
-    if(!fs.existsSync(p)) {
-      // missing file, this is okay
-      return null;
-    }
-    const data: Uint8Array = fs.readFileSync(p);
-    return data;
-  }
-
-  async fetchJSON(url: string): Promise<any> {
-    const data = await this.fetchBlob(url);
-    return data ? JSON.parse(new TextDecoder().decode(data)) : null;
-  }
-}
-
-/**
- * A CompilerCallbacks implementation for testing
- */
-export class TestCompilerCallbacks implements CompilerCallbacks {
-  /* TestCompilerCallbacks */
-
-  messages: CompilerEvent[] = [];
-  readonly _net: TestCompilerNetAsyncCallbacks;
-  readonly _fsAsync: DefaultCompilerFileSystemAsyncCallbacks = new DefaultCompilerFileSystemAsyncCallbacks(this);
-
-  constructor(basePath?: string) {
-    if(basePath) {
-      this._net = new TestCompilerNetAsyncCallbacks(basePath);
-    }
-  }
-
-  clear() {
-    this.messages = [];
-  }
-
-  printMessages() {
-    if(this.messages.length) {
-      process.stdout.write(CompilerError.formatEvent(this.messages));
-    }
-  }
-
-  hasMessage(code: number): boolean {
-    return this.messages.find((item) => item.code == code) === undefined ? false : true;
-  }
-
-  fileURLToPath(url: string | URL): string {
-    return fileURLToPath(url);
-  }
-
-  /** true of at least one error */
-  hasError(): boolean {
-    return CompilerError.hasError(this.messages);
-  }
-
-  /* CompilerCallbacks */
-
-  loadFile(filename: string): Uint8Array {
-    try {
-      return fs.readFileSync(filename);
-    } catch(e) {
-      if (e.code === 'ENOENT') {
-        return null;
-      } else {
-        throw e;
-      }
-    }
-  }
-
-  fileSize(filename: string): number {
-    return fs.statSync(filename)?.size;
-  }
-
-  isDirectory(filename: string): boolean {
-    return fs.statSync(filename)?.isDirectory();
-  }
-
-  get path(): CompilerPathCallbacks {
-    return path;
-  }
-
-  get fs(): CompilerFileSystemCallbacks {
-    return fs;
-  }
-
-  get net(): CompilerNetAsyncCallbacks {
-    return this._net;
-  }
-
-  get fsAsync(): CompilerFileSystemAsyncCallbacks {
-    return this._fsAsync;
-  }
-
-  resolveFilename(baseFilename: string, filename: string): string {
-    const basePath =
-      baseFilename.endsWith('/') || baseFilename.endsWith('\\') ?
-      baseFilename :
-      path.dirname(baseFilename);
-    // Transform separators to platform separators -- we are agnostic
-    // in our use here but path prefers files may use
-    // either / or \, although older kps files were always \.
-    if(path.sep == '/') {
-      filename = filename.replace(/\\/g, '/');
-    } else {
-      filename = filename.replace(/\//g, '\\');
-    }
-    if(!path.isAbsolute(filename)) {
-      filename = path.resolve(basePath, filename);
-    }
-    return filename;
-  }
-
-  reportMessage(event: CompilerEvent): void {
-    // console.log(event.message);
-    this.messages.push(event);
-  }
-
-  debug(msg: string) {
-    console.debug(msg);
-  }
-};
+export { TestCompilerCallbacks } from './TestCompilerCallbacks.js';
diff --git a/developer/src/common/web/utils/src/cloud-urls.ts b/developer/src/common/web/utils/src/cloud-urls.ts
new file mode 100644
index 00000000000..33f9c669b9b
--- /dev/null
+++ b/developer/src/common/web/utils/src/cloud-urls.ts
@@ -0,0 +1,18 @@
+/**
+ * Matches a Keyman keyboard resource, based on the permanent home page for the
+ * keyboard on keyman.com, `https://keyman.com/keyboards/<id>`
+ */
+export const KEYMANCOM_CLOUD_URI = /^(?:http(?:s)?:\/\/)?keyman\.com\/keyboards\/(?<id>[a-z0-9_.-]+)/i;
+
+/**
+ * Matches a `cloud:<id>` URI for a Keyman resource (e.g. keyboard or lexical
+ * model)
+ */
+export const CLOUD_URI = /^cloud:(?<id>.+)$/i;
+
+
+export interface CloudUriRegexMatchArray extends RegExpMatchArray {
+  groups?: {
+    id?: string;
+  }
+}
\ No newline at end of file
diff --git a/developer/src/common/web/utils/src/common-messages.ts b/developer/src/common/web/utils/src/common-messages.ts
index 724dadf9cd8..6eca08d37c4 100644
--- a/developer/src/common/web/utils/src/common-messages.ts
+++ b/developer/src/common/web/utils/src/common-messages.ts
@@ -20,17 +20,19 @@ export class CommonTypesMessages {
   static ERROR_ImportInvalidBase = SevError | 0x0002;
   static Error_ImportInvalidBase = (o: { base: string, path: string, subtag: string }) =>
     m(this.ERROR_ImportInvalidBase,
-      `Import element with base ${def(o.base)} is unsupported. Only ${constants.cldr_import_base} is supported.`);
+      `Import element with base ${def(o.base)} is unsupported. Only ${constants.cldr_import_base} or empty (for local) are supported.`);
 
   static ERROR_ImportInvalidPath = SevError | 0x0003;
   static Error_ImportInvalidPath = (o: { base: string, path: string, subtag: string }) =>
     m(this.ERROR_ImportInvalidPath,
-      `Import element with invalid path ${def(o.path)}: expected the form '${constants.cldr_version_latest}/*.xml`);
+      `Import element with invalid path ${def(o.path)}: expected the form '${constants.cldr_version_latest}/*.xml'`);
 
   static ERROR_ImportReadFail = SevError | 0x0004;
   static Error_ImportReadFail = (o: { base: string, path: string, subtag: string }) =>
     m(this.ERROR_ImportReadFail,
-      `Import could not read data with path ${def(o.path)}: expected the form '${constants.cldr_version_latest}/*.xml'`);
+      `Import could not read data with path ${def(o.path)}`,
+      // for CLDR, give guidance on the suggested path
+      (o.base === constants.cldr_import_base) ? `expected the form '${constants.cldr_version_latest}/*.xml' for ${o.base}` : undefined);
 
   static ERROR_ImportWrongRoot = SevError | 0x0005;
   static Error_ImportWrongRoot = (o: { base: string, path: string, subtag: string }) =>
diff --git a/developer/src/common/web/utils/src/github-urls.ts b/developer/src/common/web/utils/src/github-urls.ts
new file mode 100644
index 00000000000..1a65106bf1f
--- /dev/null
+++ b/developer/src/common/web/utils/src/github-urls.ts
@@ -0,0 +1,35 @@
+/**
+ * Matches only a GitHub permanent raw URI with a commit hash, without any other
+ * components; note hash is called branch to match other URI formats
+ */
+export const GITHUB_STABLE_SOURCE = /^https:\/\/github\.com\/(?<owner>[a-zA-Z0-9-]+)\/(?<repo>[\w\.-]+)\/raw\/(?<branch>[a-f0-9]{40})\/(?<path>.+)$/;
+
+/**
+ * Matches any GitHub git resource raw 'user content' URI which can be
+ * translated to a permanent URI with a commit hash
+ */
+export const GITHUB_RAW_URI = /^https:\/\/raw\.githubusercontent\.com\/(?<owner>[a-zA-Z0-9-]+)\/(?<repo>[\w\.-]+)\/(?:refs\/(?:heads|tags)\/)?(?<branch>[^/]+)\/(?<path>.+)$/;
+
+/**
+ * Matches any GitHub git resource raw URI which can be translated to a
+ * permanent URI with a commit hash
+ */
+export const GITHUB_URI = /^https:\/\/github\.com\/(?<owner>[a-zA-Z0-9-]+)\/(?<repo>[\w\.-]+)\/(?:raw|blob|tree)\/(?:refs\/(?:heads|tags)\/)?(?<branch>[^/]+)\/(?<path>.+)$/;
+
+/**
+ * Matches any GitHub git resource raw URI which can be translated to a
+ * permanent URI with a commit hash, with the http[s] protocol optional, for
+ * matching user-supplied URLs. groups are: `owner`, `repo`, `branch`, and
+ * `path`.
+ */
+export const GITHUB_URI_OPTIONAL_PROTOCOL = /^(?:http(?:s)?:\/\/)?github\.com\/(?<owner>[a-zA-Z0-9-]+)\/(?<repo>[\w\.-]+)(?:\/(?:(?:raw|blob|tree)\/(?:refs\/(?:heads|tags)\/)?(?<branch>[^/]+)\/(?<path>.*))?)?$/;
+
+
+export interface GitHubRegexMatchArray extends RegExpMatchArray {
+  groups?: {
+    owner?: string;
+    repo?: string;
+    branch?: string;
+    path?: string;
+  }
+}
\ No newline at end of file
diff --git a/developer/src/common/web/utils/src/index.ts b/developer/src/common/web/utils/src/index.ts
index 5b4c9c0e91a..290efd5fc70 100644
--- a/developer/src/common/web/utils/src/index.ts
+++ b/developer/src/common/web/utils/src/index.ts
@@ -66,3 +66,6 @@ export { UrlSubpathCompilerCallback } from './utils/UrlSubpathCompilerCallback.j
 export { CommonTypesMessages } from './common-messages.js';
 export * as SourceFilenamePatterns from './source-filename-patterns.js';
 export { KeymanXMLType, KeymanXMLWriter, KeymanXMLReader } from './xml-utils.js';
+
+export * as GitHubUrls from './github-urls.js';
+export * as CloudUrls from './cloud-urls.js';
\ No newline at end of file
diff --git a/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml-reader.ts b/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml-reader.ts
index 41d4c699f40..928bb94bef7 100644
--- a/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml-reader.ts
+++ b/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml-reader.ts
@@ -19,7 +19,10 @@ interface NameAndProps  {
 };
 
 export class LDMLKeyboardXMLSourceFileReaderOptions {
-  importsPath: string;
+  /** path to the CLDR imports */
+  cldrImportsPath: string;
+  /** ordered list of paths for local imports */
+  localImportsPaths: string[];
 };
 
 export class LDMLKeyboardXMLSourceFileReader {
@@ -31,10 +34,21 @@ export class LDMLKeyboardXMLSourceFileReader {
   }
 
   readImportFile(version: string, subpath: string): Uint8Array {
-    const importPath = this.callbacks.resolveFilename(this.options.importsPath, `${version}/${subpath}`);
+    const importPath = this.callbacks.resolveFilename(this.options.cldrImportsPath, `${version}/${subpath}`);
     return this.callbacks.loadFile(importPath);
   }
 
+  readLocalImportFile(path: string): Uint8Array {
+    // try each of the local imports paths
+    for (const localPath of this.options.localImportsPaths) {
+      const importPath = this.callbacks.path.join(localPath, path);
+      if(this.callbacks.fs.existsSync(importPath)) {
+        return this.callbacks.loadFile(importPath);
+      }
+    }
+    return null; // was not able to load from any of the paths
+  }
+
   /**
    * xml2js will not place single-entry objects into arrays.
    * Easiest way to fix this is to box them ourselves as needed
@@ -203,16 +217,25 @@ export class LDMLKeyboardXMLSourceFileReader {
    */
   private resolveOneImport(obj: any, subtag: string, asImport: LKImport, implied? : boolean) : boolean {
     const { base, path } = asImport;
-    if (base !== constants.cldr_import_base) {
+    // If base is not an empty string (or null/undefined), then it must be 'cldr'
+    if (base && base !== constants.cldr_import_base) {
       this.callbacks.reportMessage(CommonTypesMessages.Error_ImportInvalidBase({base, path, subtag}));
       return false;
     }
-    const paths = path.split('/');
-    if (paths[0] == '' || paths[1] == '' || paths.length !== 2) {
-      this.callbacks.reportMessage(CommonTypesMessages.Error_ImportInvalidPath({base, path, subtag}));
-      return false;
+    let importData: Uint8Array;
+
+    if (base === constants.cldr_import_base) {
+      // CLDR import
+      const paths = path.split('/');
+      if (paths[0] == '' || paths[1] == '' || paths.length !== 2) {
+        this.callbacks.reportMessage(CommonTypesMessages.Error_ImportInvalidPath({base, path, subtag}));
+        return false;
+      }
+      importData = this.readImportFile(paths[0], paths[1]);
+    } else {
+      // local import
+      importData = this.readLocalImportFile(path);
     }
-    const importData: Uint8Array = this.readImportFile(paths[0], paths[1]);
     if (!importData || !importData.length) {
       this.callbacks.reportMessage(CommonTypesMessages.Error_ImportReadFail({base, path, subtag}));
       return false;
@@ -241,6 +264,9 @@ export class LDMLKeyboardXMLSourceFileReader {
         // mark all children as an implied import
         subsubval.forEach(o => o[ImportStatus.impliedImport] = basePath);
       }
+      if (base !== constants.cldr_import_base) {
+        subsubval.forEach(o => o[ImportStatus.localImport] = path);
+      }
 
       if (!obj[subsubtag]) {
         obj[subsubtag] = []; // start with empty array
diff --git a/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml.ts b/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml.ts
index 696194573f8..587b02dd719 100644
--- a/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml.ts
+++ b/developer/src/common/web/utils/src/types/ldml-keyboard/ldml-keyboard-xml.ts
@@ -38,7 +38,7 @@ export interface LKImport {
   /**
    * import base, currently `cldr` is supported
    */
-  base: string;
+  base?: 'cldr' | '';
   /**
    * path to imported resource, of the form `45/*.xml`
    */
@@ -199,6 +199,8 @@ export class ImportStatus {
   static impliedImport = Symbol('LDML implied import');
   /** item came in via import */
   static import = Symbol('LDML import');
+  /** item came in via local (not CLDR) import */
+  static localImport = Symbol('LDML local import');
 
   /** @returns true if the object was loaded through an implied import */
   static isImpliedImport(o : any) : boolean {
@@ -208,5 +210,9 @@ export class ImportStatus {
   static isImport(o : any) : boolean {
     return o && !!o[ImportStatus.import];
   }
+  /** @returns true if the object was loaded through an explicit import */
+  static isLocalImport(o : any) : boolean {
+    return o && !!o[ImportStatus.localImport];
+  }
 };
 
diff --git a/developer/src/common/web/utils/test/TestCompilerCallbacks.ts b/developer/src/common/web/utils/test/TestCompilerCallbacks.ts
deleted file mode 100644
index 5b36c63fe3e..00000000000
--- a/developer/src/common/web/utils/test/TestCompilerCallbacks.ts
+++ /dev/null
@@ -1,76 +0,0 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import { loadFile, resolveFilename } from './helpers/index.js';
-import { CompilerCallbacks, CompilerFileSystemAsyncCallbacks, CompilerFileSystemCallbacks, CompilerNetAsyncCallbacks, CompilerPathCallbacks } from '../src/compiler-callbacks.js';
-import { CompilerError, CompilerEvent } from '../src/compiler-interfaces.js';
-import { fileURLToPath } from 'url';
-
-// This is related to developer/src/common/web/test-helpers/index.ts but has a slightly different API surface
-// as this runs at a lower level than the compiler.
-/**
- * A CompilerCallbacks implementation for testing
- */
-export class TestCompilerCallbacks implements CompilerCallbacks {
-  clear() {
-    this.messages = [];
-  }
-  debug(msg: string): void {
-    console.debug(msg);
-  }
-
-  printMessages() {
-    process.stdout.write(CompilerError.formatEvent(this.messages));
-  }
-
-  messages: CompilerEvent[] = [];
-
-  get path(): CompilerPathCallbacks {
-    return path;
-  }
-
-  get fs(): CompilerFileSystemCallbacks {
-    return fs;
-  }
-
-  get fsAsync(): CompilerFileSystemAsyncCallbacks {
-    return null; // Note: not currently used
-  }
-
-  get net(): CompilerNetAsyncCallbacks {
-    return null; // Note: not currently used
-  }
-
-  resolveFilename(baseFilename: string, filename: string): string {
-    return resolveFilename(baseFilename, filename);
-  }
-
-  fileURLToPath(url: string | URL): string {
-    return fileURLToPath(url);
-  }
-
-  loadFile(filename: string): Uint8Array {
-    // TODO: error management, does it belong here?
-    try {
-      return loadFile(filename);
-    } catch (e) {
-      if (e.code === 'ENOENT') {
-        return <Uint8Array><unknown>null;
-      } else {
-        throw e;
-      }
-    }
-  }
-
-  fileSize(filename: string): number {
-    return fs.statSync(filename).size;
-  }
-
-  isDirectory(filename: string): boolean {
-    return fs.statSync(filename)?.isDirectory();
-  }
-
-  reportMessage(event: CompilerEvent): void {
-    // console.log(event.message);
-    this.messages.push(event);
-  }
-}
diff --git a/developer/src/common/web/utils/test/fixtures/ldml-keyboard/import-local.xml b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/import-local.xml
new file mode 100644
index 00000000000..b3cc7cabdff
--- /dev/null
+++ b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/import-local.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<keyboard3 xmlns="https://schemas.unicode.org/cldr/45/keyboard3" locale="und" conformsTo="45">
+  <info author="srl295" indicator="🙀" layout="qwerty"  name="Test Minimal Keyboard"/>
+  <keys>
+    <import base="" path="keys-Zyyy-morepunctuation.xml"/>
+  </keys>
+</keyboard3>
diff --git a/developer/src/common/web/utils/test/fixtures/ldml-keyboard/invalid-import-local.xml b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/invalid-import-local.xml
new file mode 100644
index 00000000000..e8ac9dc9640
--- /dev/null
+++ b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/invalid-import-local.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<keyboard3 xmlns="https://schemas.unicode.org/cldr/45/keyboard3" locale="und" conformsTo="45">
+  <info author="srl295" indicator="🙀" layout="qwerty"  name="Test Minimal Keyboard"/>
+  <keys>
+  <import base="" path="keys-Zyyy-DOESNOTEXIST.xml"/>
+  </keys>
+</keyboard3>
diff --git a/developer/src/common/web/utils/test/fixtures/ldml-keyboard/keys-Zyyy-morepunctuation.xml b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/keys-Zyyy-morepunctuation.xml
new file mode 100644
index 00000000000..768e81e7cd2
--- /dev/null
+++ b/developer/src/common/web/utils/test/fixtures/ldml-keyboard/keys-Zyyy-morepunctuation.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<keys>
+    <!-- Special Symbols -->
+    <key id="interrobang" output="‽" />
+    <key id="snail" output="@" />
+</keys>
diff --git a/developer/src/common/web/utils/test/helpers/reader-callback-test.ts b/developer/src/common/web/utils/test/helpers/reader-callback-test.ts
index c67d49dfdb4..d865ab2f46a 100644
--- a/developer/src/common/web/utils/test/helpers/reader-callback-test.ts
+++ b/developer/src/common/web/utils/test/helpers/reader-callback-test.ts
@@ -7,9 +7,11 @@ import { LDMLKeyboardXMLSourceFile } from '../../src/types/ldml-keyboard/ldml-ke
 import { LDMLKeyboardTestDataXMLSourceFile } from '../../src/types/ldml-keyboard/ldml-keyboard-testdata-xml.js';
 import { TestCompilerCallbacks } from '@keymanapp/developer-test-helpers';
 import { fileURLToPath } from 'url';
+import { dirname } from 'node:path';
 
 const readerOptions: LDMLKeyboardXMLSourceFileReaderOptions = {
-  importsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL))
+  cldrImportsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL)),
+  localImportsPaths: [],
 };
 
 export interface CompilationCase {
@@ -76,18 +78,29 @@ export interface TestDataCase {
 export function testReaderCases(cases : CompilationCase[]) {
   // we need our own callbacks rather than using the global so messages don't get mixed
   const callbacks = new TestCompilerCallbacks();
-  const reader = new LDMLKeyboardXMLSourceFileReader(readerOptions, callbacks);
   for (const testcase of cases) {
     const expectFailure = testcase.throws || !!(testcase.errors); // if true, we expect this to fail
     const testHeading = expectFailure ? `should fail to load: ${testcase.subpath}`:
                                         `should load: ${testcase.subpath}`;
     it(testHeading, function () {
       callbacks.clear();
-
-      const data = loadFile(makePathToFixture('ldml-keyboard', testcase.subpath));
+      const path = makePathToFixture('ldml-keyboard', testcase.subpath);
+      // update readerOptions to point to the source dir.
+      readerOptions.localImportsPaths = [ dirname(path) ];
+      const reader = new LDMLKeyboardXMLSourceFileReader(readerOptions, callbacks);
+      const data = loadFile(path);
       assert.ok(data, `reading ${testcase.subpath}`);
       const source = reader.load(data);
       if (!testcase.loadfail) {
+        if (!source) {
+          // print any loading errs here
+          if (testcase.warnings) {
+            assert.includeDeepMembers(callbacks.messages, testcase.warnings, 'expected warnings to be included');
+          } else if (!expectFailure) {
+            // no warnings, so expect zero messages
+            assert.deepEqual(callbacks.messages, [], 'expected zero messages');
+          }
+        }
         assert.ok(source, `loading ${testcase.subpath}`);
       } else {
         assert.notOk(source, `loading ${testcase.subpath} (expected failure)`);
diff --git a/developer/src/common/web/utils/test/kmx/ldml-keyboard-xml-reader.tests.ts b/developer/src/common/web/utils/test/kmx/ldml-keyboard-xml-reader.tests.ts
index 17c35660245..e3e6fc1e9fb 100644
--- a/developer/src/common/web/utils/test/kmx/ldml-keyboard-xml-reader.tests.ts
+++ b/developer/src/common/web/utils/test/kmx/ldml-keyboard-xml-reader.tests.ts
@@ -119,11 +119,33 @@ describe('ldml keyboard xml reader tests', function () {
         // 'hash' is an import but not implied
         assert.isFalse(ImportStatus.isImpliedImport(k.find(({id}) => id === 'hash')));
         assert.isTrue(ImportStatus.isImport(k.find(({id}) => id === 'hash')));
+        assert.isFalse(ImportStatus.isLocalImport(k.find(({id}) => id === 'hash')));
         // 'zz' is not imported
         assert.isFalse(ImportStatus.isImpliedImport(k.find(({id}) => id === 'zz')));
         assert.isFalse(ImportStatus.isImport(k.find(({id}) => id === 'zz')));
       },
     },
+    {
+      subpath: 'import-local.xml',
+      callback: (data, source, subpath, callbacks) => {
+        assert.ok(source?.keyboard3?.keys);
+        const k = pluckKeysFromKeybag(source?.keyboard3?.keys.key, ['interrobang','snail']);
+        assert.sameDeepOrderedMembers(k.map((entry) => {
+          // Drop the Symbol members from the returned keys; assertions may expect their presence.
+          return {
+            id: entry.id,
+            output: entry.output
+          };
+        }), [
+          { id: 'interrobang', output: '‽' },
+          { id: 'snail', output: '@' },
+        ]);
+        // all of the keys are implied imports here
+        assert.isFalse(ImportStatus.isImpliedImport(source?.keyboard3?.keys.key.find(({id}) => id === 'snail')));
+        assert.isTrue(ImportStatus.isImport(source?.keyboard3?.keys.key.find(({id}) => id === 'snail')));
+        assert.isTrue(ImportStatus.isLocalImport(source?.keyboard3?.keys.key.find(({id}) => id === 'snail')));
+      },
+    },
     {
       subpath: 'invalid-import-base.xml',
       loadfail: true,
@@ -135,12 +157,23 @@ describe('ldml keyboard xml reader tests', function () {
         }),
       ],
     },
+    {
+      subpath: 'invalid-import-local.xml',
+      loadfail: true,
+      errors: [
+        CommonTypesMessages.Error_ImportReadFail({
+          base: undefined,
+          path: 'keys-Zyyy-DOESNOTEXIST.xml',
+          subtag: 'keys'
+        }),
+      ],
+    },
     {
       subpath: 'invalid-import-path.xml',
       loadfail: true,
       errors: [
         CommonTypesMessages.Error_ImportInvalidPath({
-          base: null,
+          base: 'cldr',
           path: '45/too/many/slashes/leading/to/nothing-Zxxx-does-not-exist.xml',
           subtag: null,
         }),
@@ -151,7 +184,7 @@ describe('ldml keyboard xml reader tests', function () {
       loadfail: true,
       errors: [
         CommonTypesMessages.Error_ImportReadFail({
-          base: null,
+          base: 'cldr',
           path: '45/none-Zxxx-does-not-exist.xml',
           subtag: null,
         }),
diff --git a/developer/src/kmc-copy/src/KeymanProjectCopier.ts b/developer/src/kmc-copy/src/KeymanProjectCopier.ts
index e463ec1b4c0..40f68fc1fc4 100644
--- a/developer/src/kmc-copy/src/KeymanProjectCopier.ts
+++ b/developer/src/kmc-copy/src/KeymanProjectCopier.ts
@@ -4,7 +4,7 @@
  * Copy a keyboard or lexical model project
  */
 
-import { CompilerCallbacks, CompilerLogLevel, KeymanCompiler, KeymanCompilerArtifact, KeymanCompilerArtifacts, KeymanCompilerResult, KeymanDeveloperProject, KeymanDeveloperProjectOptions, KPJFileReader, KPJFileWriter, KpsFileReader, KpsFileWriter } from "@keymanapp/developer-utils";
+import { CloudUrls, GitHubUrls, CompilerCallbacks, CompilerLogLevel, KeymanCompiler, KeymanCompilerArtifact, KeymanCompilerArtifacts, KeymanCompilerResult, KeymanDeveloperProject, KeymanDeveloperProjectOptions, KPJFileReader, KPJFileWriter, KpsFileReader, KpsFileWriter } from "@keymanapp/developer-utils";
 import { KeymanFileTypes } from "@keymanapp/common-types";
 
 import { CopierMessages } from "./copier-messages.js";
@@ -86,6 +86,9 @@ export class KeymanProjectCopier implements KeymanCompiler {
   relocateExternalFiles: boolean = false; // TODO-COPY: support
 
   public async init(callbacks: CompilerCallbacks, options: CopierOptions): Promise<boolean> {
+    if(!callbacks || !options) {
+      return false;
+    }
     this.callbacks = callbacks;
     this.options = options;
     this.cloudSource = new KeymanCloudSource(this.callbacks);
@@ -97,7 +100,7 @@ export class KeymanProjectCopier implements KeymanCompiler {
    * artifacts on success. The files are passed in by name, and the compiler
    * will use callbacks as passed to the {@link KeymanProjectCopier.init}
    * function to read any input files by disk.
-   * @param   source  Source file or folder to copy. Can be a local file or folder, github:repo[:path], or cloud:id
+   * @param   source  Source file or folder to copy. Can be a local file or folder, https://github.com/.../repo[/path], or cloud:id
    * @returns         Binary artifacts on success, null on failure.
    */
   public async run(source: string): Promise<CopierResult> {
@@ -151,10 +154,10 @@ export class KeymanProjectCopier implements KeymanCompiler {
    * @returns  path to .kpj (either local or remote)
    */
   private async getSourceProject(source: string): Promise<string | GitHubRef> {
-    if(source.startsWith('github:')) {
-      // `github:owner/repo:path/to/kpj`, referencing a .kpj file
+    if(source.match(GitHubUrls.GITHUB_URI_OPTIONAL_PROTOCOL) || source.match(GitHubUrls.GITHUB_RAW_URI)) {
+      // `[https://]github.com/owner/repo/[tree|blob|raw]/[refs/...]/branch/path/to/kpj`, referencing a .kpj file
       return await this.getGitHubSourceProject(source);
-    } else if(source.startsWith('cloud:')) {
+    } else if(source.match(CloudUrls.CLOUD_URI) || source.match(CloudUrls.KEYMANCOM_CLOUD_URI)) {
       // `cloud:id`, referencing a Keyman Cloud keyboard
       return await this.getCloudSourceProject(source);
     } else if(this.callbacks.fs.existsSync(source) && source.endsWith(KeymanFileTypes.Source.Project) && !this.callbacks.isDirectory(source)) {
@@ -194,64 +197,69 @@ export class KeymanProjectCopier implements KeymanCompiler {
 
   /**
    * Resolve path to GitHub source, which must be in the following format:
-   *   `github:owner/repo[:branch]:path/to/kpj`
+   *   `[https://]github.com/owner/repo/branch/path/to/kpj`
    * The path must be fully qualified, referencing the .kpj file; it
    * cannot just be the folder where the .kpj is found
    * @param source
    * @returns a promise: GitHub reference to the source for the keyboard, or null on failure
    */
   private async getGitHubSourceProject(source: string): Promise<GitHubRef> {
-    const parts = source.split(':');
-    if(parts.length < 3 || parts.length > 4 || !parts[1].match(/^[a-z0-9-]+\/[a-z0-9._-]+$/i)) {
-      // https://stackoverflow.com/questions/59081778/rules-for-special-characters-in-github-repository-name
-      this.callbacks.reportMessage(CopierMessages.Error_InvalidGitHubSource({source}));
-      return null;
+    const parts: GitHubUrls.GitHubRegexMatchArray =
+      GitHubUrls.GITHUB_URI_OPTIONAL_PROTOCOL.exec(source) ??
+      GitHubUrls.GITHUB_RAW_URI.exec(source);
+    if(!parts) {
+      throw new Error('Expected GITHUB_URI_OPTIONAL_PROTOCOL or GITHUB_RAW_URI to match');
     }
 
-    const origin = parts[1].split('/');
-
-    const ref: GitHubRef = new GitHubRef({
-      owner: origin[0],
-      repo: origin[1],
-      branch: null,
-      path: null
-    });
+    const ref: GitHubRef = new GitHubRef(parts);
 
-    if(parts.length == 4) {
-      ref.branch = parts[2];
-      ref.path = parts[3];
-    } else {
+    if(!ref.branch) {
       ref.branch = await this.cloudSource.getDefaultBranchFromGitHub(ref);
       if(!ref.branch) {
         this.callbacks.reportMessage(CopierMessages.Error_CouldNotFindDefaultBranchOnGitHub({ref: ref.toString()}));
         return null;
       }
-      ref.path = parts[2];
-
+    }
+    if(!ref.path) {
+      ref.path = '/';
     }
     if(!ref.path.startsWith('/')) {
       ref.path = '/' + ref.path;
     }
 
+    if(ref.path != '/') {
+      if(!ref.path.endsWith('.kpj')) {
+        // Assumption, project filename matches folder name
+        if(ref.path.endsWith('/')) {
+          ref.path = ref.path.substring(0, ref.path.length-1);
+        }
+        ref.path = ref.path + '/' + this.callbacks.path.basename(ref.path) + '.kpj';
+      }
+    }
+
     return ref;
   }
 
   /**
    * Resolve path to Keyman Cloud source (which is on GitHub), which must be in
    * the following format:
-   *   `cloud:keyboard_id|model_id`
+   *   `cloud:keyboard_id`, or
+   *   `cloud:model_id`, or
+   *   `https://keyman.com/keyboards/keyboard_id`
    * The `keyboard_id` parameter should be a valid id (a-z0-9_), as found at
-   * https://keyman.com/keyboards; alternativel if it is a model_id, it should
+   * https://keyman.com/keyboards; alternatively if it is a model_id, it should
    * have the format author.bcp47.uniq
    * @param source
    * @returns a promise: GitHub reference to the source for the keyboard, or null on failure
    */
   private async getCloudSourceProject(source: string): Promise<GitHubRef> {
-    const parts = source.split(':');
-    const id = parts[1];
+    const parts = CloudUrls.CLOUD_URI.exec(source) ?? CloudUrls.KEYMANCOM_CLOUD_URI.exec(source);
+    if(!parts) {
+      throw new Error('Expected CLOUD_URI or KEYMANCOM_CLOUD_URI to match');
+    }
 
+    const id: string = parts.groups.id;
     const isModel = /^[^.]+\.[^.]+\.[^.]+$/.test(id);
-
     const remote = await this.cloudSource.getSourceFromKeymanCloud(id, isModel);
     if(!remote) {
       return null;
@@ -687,4 +695,11 @@ export class KeymanProjectCopier implements KeymanCompiler {
     return true;
   }
   /* c8 ignore stop */
+
+  /** @internal */
+  public unitTestEndPoints = {
+    getGithubSourceProject: this.getGitHubSourceProject.bind(this),
+    getCloudSourceProject: this.getCloudSourceProject.bind(this)
+  };
+
 }
diff --git a/developer/src/kmc-copy/src/cloud.ts b/developer/src/kmc-copy/src/cloud.ts
index aeb5171895f..7b3ef1ff119 100644
--- a/developer/src/kmc-copy/src/cloud.ts
+++ b/developer/src/kmc-copy/src/cloud.ts
@@ -3,7 +3,7 @@
  *
  * GitHub and Keyman Cloud interface wrappers
  */
-import { CompilerCallbacks } from "@keymanapp/developer-utils";
+import { CompilerCallbacks, GitHubUrls } from "@keymanapp/developer-utils";
 import { CopierMessages } from "./copier-messages.js";
 import { KeymanFileTypes } from "@keymanapp/common-types";
 
@@ -12,17 +12,24 @@ export class GitHubRef {
   public repo: string;
   public branch: string;
   public path: string;
-  constructor(owner: string | GitHubRef, repo?: string, branch?: string, path?: string) {
+  constructor(owner: string | GitHubRef | GitHubUrls.GitHubRegexMatchArray, repo?: string, branch?: string, path?: string) {
     if(typeof owner == 'string') {
       this.owner = owner;
       this.repo = repo;
       this.branch = branch;
       this.path = path;
-    } else {
+    } else if("groups" in owner) {
+      this.owner = owner.groups.owner;
+      this.repo = owner.groups.repo;
+      this.branch = owner.groups.branch;
+      this.path = owner.groups.path;
+    } else if("owner" in owner) {
       this.owner = owner.owner;
       this.repo = owner.repo;
       this.branch = owner.branch;
       this.path = owner.path;
+    } else {
+      throw new Error(`Unrecognized GitHubRef '${owner}'`)
     }
   }
   toString() {
diff --git a/developer/src/kmc-copy/src/copier-messages.ts b/developer/src/kmc-copy/src/copier-messages.ts
index 02294a90815..78a948ec79b 100644
--- a/developer/src/kmc-copy/src/copier-messages.ts
+++ b/developer/src/kmc-copy/src/copier-messages.ts
@@ -117,18 +117,7 @@ export class CopierMessages {
     `Dry run requested. No changes have been saved`
   );
 
-  static ERROR_InvalidGitHubSource = SevError | 0x0011;
-  static Error_InvalidGitHubSource = (o:{source: string}) => m(
-    this.ERROR_InvalidGitHubSource,
-    `Source project specification '${def(o.source)}' is not a valid GitHub reference`,
-    `The source project specification for GitHub sources must match the pattern:
-        github:\\<owner/repo>[:\\<branch>]:\\<path>
-    The path must include the .kpj filename and may optionally begin with a forward slash.
-    The following are valid examples:
-        github:keymanapp/keyboards:master:release/k/khmer_angkor/khmer_angkor.kpj
-        github:keymanapp/keyboards:release/k/khmer_angkor/khmer_angkor.kpj
-        github:keymanapp/keyboards:/release/k/khmer_angkor/khmer_angkor.kpj`
-  );
+  // 0x0011 unused
 
   static ERROR_CannotDownloadFolderFromGitHub = SevError | 0x0012;
   static Error_CannotDownloadFolderFromGitHub = (o:{ref: string, message?: string, cause?: string}) => m(
diff --git a/developer/src/kmc-copy/test/copier.tests.ts b/developer/src/kmc-copy/test/copier.tests.ts
index 3cf9e4c0ee6..6d583862aea 100644
--- a/developer/src/kmc-copy/test/copier.tests.ts
+++ b/developer/src/kmc-copy/test/copier.tests.ts
@@ -12,6 +12,7 @@ import { assert } from 'chai';
 import { TestCompilerCallbacks } from '@keymanapp/developer-test-helpers';
 import { KeymanProjectCopier } from '../src/KeymanProjectCopier.js';
 import { makePathToFixture } from './helpers/index.js';
+import { GitHubRef } from './cloud.js';
 
 const { TEST_SAVE_ARTIFACTS, TEST_SAVE_FIXTURES } = env;
 let outputRoot: string = '/an/imaginary/root/';
@@ -374,7 +375,7 @@ describe('KeymanProjectCopier', function() {
 
     // armenian_mnemonic selected because (a) small, and (b) has v2.0 project, so
     // that exercises the folder retrieval as well
-    const result = await copier.run('github:keymanapp/keyboards:release/a/armenian_mnemonic/armenian_mnemonic.kpj');
+    const result = await copier.run('github.com/keymanapp/keyboards/tree/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj');
 
     // We should have no messages and a successful result
     assert.isOk(result);
@@ -416,6 +417,81 @@ describe('KeymanProjectCopier', function() {
     });
   });
 
+  // Keyman Cloud patterns
+
+  const cloud_khmer_angkor: GitHubRef = { branch: 'master', owner: 'keymanapp', repo: 'keyboards', path: '/release/k/khmer_angkor/khmer_angkor.kpj' };
+  const cloud_nrc_en_mtnt: GitHubRef = { branch: 'master', owner: 'keymanapp', repo: 'lexical-models', path: '/release/nrc/nrc.en.mtnt/nrc.en.mtnt.kpj' };
+  const cloud_urls: [string,GitHubRef][] = [
+    ['cloud:khmer_angkor', cloud_khmer_angkor],
+    ['https://keyman.com/keyboards/khmer_angkor', cloud_khmer_angkor],
+    ['https://keyman.com/keyboards/khmer_angkor/', cloud_khmer_angkor],
+    ['keyman.com/keyboards/khmer_angkor/', cloud_khmer_angkor],
+    ['http://keyman.com/keyboards/khmer_angkor#abc', cloud_khmer_angkor],
+    ['cloud:nrc.en.mtnt', cloud_nrc_en_mtnt],
+  ];
+
+  cloud_urls.forEach(url => {
+    it(`should parse URL '${url[0]}' and figure out the .kpj`, async function() {
+      // url -->
+      const copier = new KeymanProjectCopier();
+      assert.isTrue(await copier.init(callbacks, {
+        dryRun: false,
+        outPath: ''
+      }));
+
+      const ref = await copier.unitTestEndPoints.getCloudSourceProject(url[0]);
+      assert.isNotNull(ref);
+      assert.deepEqual(ref, url[1]);
+    });
+  })
+
+
+  // GitHub patterns that should match as inputs for kmc-copy source
+
+  const armenian_mnemonic_urls = [ {
+    branch: 'master', urls: [
+    'github.com/keymanapp/keyboards/tree/master/release/a/armenian_mnemonic',
+    'http://github.com/keymanapp/keyboards/tree/master/release/a/armenian_mnemonic',
+    'https://github.com/keymanapp/keyboards/tree/master/release/a/armenian_mnemonic',
+    'https://github.com/keymanapp/keyboards/tree/master/release/a/armenian_mnemonic/',
+    'https://github.com/keymanapp/keyboards/tree/refs/heads/master/release/a/armenian_mnemonic',
+    'https://github.com/keymanapp/keyboards/tree/refs/heads/master/release/a/armenian_mnemonic/',
+    'https://github.com/keymanapp/keyboards/raw/refs/heads/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+    'https://github.com/keymanapp/keyboards/raw/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+    'https://github.com/keymanapp/keyboards/blob/refs/heads/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+    'https://github.com/keymanapp/keyboards/blob/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+
+    // And similar patterns for raw.githubusercontent.com
+
+    'https://raw.githubusercontent.com/keymanapp/keyboards/refs/heads/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+    'https://raw.githubusercontent.com/keymanapp/keyboards/master/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+  ]}, {
+    branch: '78b6f98e5db4a249cc4231f8744f5fe4e5fd29f2', urls: [
+    'https://github.com/keymanapp/keyboards/blob/78b6f98e5db4a249cc4231f8744f5fe4e5fd29f2/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+    'https://github.com/keymanapp/keyboards/tree/78b6f98e5db4a249cc4231f8744f5fe4e5fd29f2/release/a/armenian_mnemonic',
+    'https://github.com/keymanapp/keyboards/tree/78b6f98e5db4a249cc4231f8744f5fe4e5fd29f2/release/a/armenian_mnemonic/',
+    'https://raw.githubusercontent.com/keymanapp/keyboards/78b6f98e5db4a249cc4231f8744f5fe4e5fd29f2/release/a/armenian_mnemonic/armenian_mnemonic.kpj',
+  ]}];
+
+  armenian_mnemonic_urls.forEach(({branch,urls}) => urls.forEach(url => {
+    it(`should parse URL '${url}' and figure out the .kpj`, async function() {
+      // url -->
+      const copier = new KeymanProjectCopier();
+      assert.isTrue(await copier.init(callbacks, {
+        dryRun: false,
+        outPath: ''
+      }));
+
+      const ref = await copier.unitTestEndPoints.getGithubSourceProject(url);
+      assert.deepEqual(ref, {
+        branch,
+        owner: 'keymanapp',
+        repo: 'keyboards',
+        path: '/release/a/armenian_mnemonic/armenian_mnemonic.kpj'
+      });
+    });
+  }));
+
   // TODO-COPY: additional tests
   it.skip('should copy a disorganized project into current structure', async function() {});
   it.skip('should copy a standalone .kmn into a new project', async function() {});
diff --git a/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#keyboard#khmer_angkor b/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#keyboard#khmer_angkor
new file mode 100644
index 00000000000..17b495a24bb
--- /dev/null
+++ b/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#keyboard#khmer_angkor
@@ -0,0 +1,65 @@
+{
+    "id": "khmer_angkor",
+    "name": "Khmer Angkor",
+    "license": "mit",
+    "authorName": "Makara Sok",
+    "authorEmail": "makara_sok@sil.org",
+    "description": "<p>Khmer Unicode keyboard layout based on the NiDA keyboard layout.\nAutomatically corrects many common keying errors.</p>",
+    "languages": {
+        "km": {
+            "examples": [
+                {
+                    "keys": "x j m E r",
+                    "note": "Name of language",
+                    "text": "\u1781\u17d2\u1798\u17c2\u179a"
+                }
+            ],
+            "font": {
+                "family": "Khmer Mondulkiri",
+                "source": [
+                    "Mondulkiri-R.ttf"
+                ]
+            },
+            "oskFont": {
+                "family": "KbdKhmr",
+                "source": [
+                    "KbdKhmr.ttf"
+                ]
+            },
+            "languageName": "Khmer",
+            "displayName": "Khmer"
+        }
+    },
+    "lastModifiedDate": "2024-07-03T15:47:38.000Z",
+    "packageFilename": "khmer_angkor.kmp",
+    "packageFileSize": 4259005,
+    "jsFilename": "khmer_angkor.js",
+    "jsFileSize": 70494,
+    "packageIncludes": [
+        "visualKeyboard",
+        "welcome",
+        "fonts",
+        "documentation"
+    ],
+    "version": "1.5",
+    "encodings": [
+        "unicode"
+    ],
+    "platformSupport": {
+        "windows": "full",
+        "macos": "full",
+        "linux": "full",
+        "desktopWeb": "full",
+        "ios": "full",
+        "android": "full",
+        "mobileWeb": "full"
+    },
+    "minKeymanVersion": "10.0",
+    "sourcePath": "release/k/khmer_angkor",
+    "helpLink": "https://help.keyman.com/keyboard/khmer_angkor",
+    "related": {
+        "khmer10": {
+            "deprecates": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#model#nrc.en.mtnt b/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#model#nrc.en.mtnt
new file mode 100644
index 00000000000..bee31a4fe4a
--- /dev/null
+++ b/developer/src/kmc-copy/test/fixtures/online/api.keyman.com/#model#nrc.en.mtnt
@@ -0,0 +1,23 @@
+{
+    "languages": [
+        "en",
+        "en-us",
+        "en-ca"
+    ],
+    "id": "nrc.en.mtnt",
+    "name": "English language model mined from MTNT",
+    "license": "mit",
+    "authorName": "Eddie Antonio Santos",
+    "authorEmail": "easantos@ualberta.ca",
+    "description": "<p>A unigram language model for English derived from the MTNT corpus <a href=\"http://www.cs.cmu.edu/~pmichel1/mtnt/\">http://www.cs.cmu.edu/~pmichel1/mtnt/</a>. This corpus itself is gathered from Reddit, so it is unfiltered internet discussion. This is not humanity at its prettiest!</p>",
+    "lastModifiedDate": "2024-09-16T01:05:45.000Z",
+    "packageFilename": "https://keyman.com/go/package/download/model/nrc.en.mtnt?version=0.3.3&update=1",
+    "packageFileSize": 332955,
+    "jsFilename": "https://downloads.keyman.com/models/nrc.en.mtnt/0.3.3/nrc.en.mtnt.model.js",
+    "jsFileSize": 2713050,
+    "packageIncludes": [],
+    "version": "0.3.3",
+    "minKeymanVersion": "12.0",
+    "helpLink": "https://help.keyman.com/model/nrc.en.mtnt",
+    "sourcePath": "release/nrc/nrc.en.mtnt"
+}
\ No newline at end of file
diff --git a/developer/src/kmc-ldml/test/fixtures/sections/keys/import-local.xml b/developer/src/kmc-ldml/test/fixtures/sections/keys/import-local.xml
new file mode 100644
index 00000000000..d97d711301d
--- /dev/null
+++ b/developer/src/kmc-ldml/test/fixtures/sections/keys/import-local.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<keyboard3 xmlns="https://schemas.unicode.org/cldr/45/keyboard3" locale="mt" conformsTo="45">
+  <info name="keys-minimal"/>
+
+  <keys>
+    <import base="" path="keys-Zyyy-morepunctuation.xml"/>
+  </keys>
+
+  <layers formId="us">
+    <layer id="base">
+      <row keys="snail interrobang" />
+    </layer>
+  </layers>
+
+</keyboard3>
diff --git a/developer/src/kmc-ldml/test/fixtures/sections/keys/keys-Zyyy-morepunctuation.xml b/developer/src/kmc-ldml/test/fixtures/sections/keys/keys-Zyyy-morepunctuation.xml
new file mode 100644
index 00000000000..768e81e7cd2
--- /dev/null
+++ b/developer/src/kmc-ldml/test/fixtures/sections/keys/keys-Zyyy-morepunctuation.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<keys>
+    <!-- Special Symbols -->
+    <key id="interrobang" output="‽" />
+    <key id="snail" output="@" />
+</keys>
diff --git a/developer/src/kmc-ldml/test/helpers/index.ts b/developer/src/kmc-ldml/test/helpers/index.ts
index 3bb67278fbe..bd438c4ca11 100644
--- a/developer/src/kmc-ldml/test/helpers/index.ts
+++ b/developer/src/kmc-ldml/test/helpers/index.ts
@@ -38,7 +38,8 @@ export const compilerTestCallbacks = new TestCompilerCallbacks();
 
 export const compilerTestOptions: LdmlCompilerOptions = {
   readerOptions: {
-    importsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL))
+    cldrImportsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL)),
+    localImportsPaths: [], // will be fixed up in loadSectionFixture
   }
 };
 
@@ -59,8 +60,14 @@ export async function loadSectionFixture(compilerClass: SectionCompilerNew, file
   const data = callbacks.loadFile(inputFilename);
   assert.isNotNull(data, `Failed to read file ${inputFilename}`);
 
+  compilerTestOptions.readerOptions.localImportsPaths =  [ path.dirname(inputFilename) ];
+
   const reader = new LDMLKeyboardXMLSourceFileReader(compilerTestOptions.readerOptions, callbacks);
   const source = reader.load(data);
+  if (!source) {
+    // print any callbacks here
+    assert.sameDeepMembers(callbacks.messages, [], `Errors loading ${inputFilename}`);
+  }
   assert.isNotNull(source, `Failed to load XML from ${inputFilename}`);
 
   if (!reader.validate(source)) {
diff --git a/developer/src/kmc-ldml/test/keys.tests.ts b/developer/src/kmc-ldml/test/keys.tests.ts
index b639c194cc3..cfb37e6baf5 100644
--- a/developer/src/kmc-ldml/test/keys.tests.ts
+++ b/developer/src/kmc-ldml/test/keys.tests.ts
@@ -199,6 +199,19 @@ describe('keys', function () {
         assert.equal(flickw.flicks[0].keyId.value, 'dd');
       },
     },
+    {
+      subpath: 'sections/keys/import-local.xml',
+      callback: (keys, subpath, callbacks) => {
+        assert.isNotNull(keys);
+        assert.equal((<Keys>keys).keys.length, 2 + KeysCompiler.reserved_count);
+        const [snail] = (<Keys>keys).keys.filter(({ id }) => id.value === 'snail');
+        assert.ok(snail,`Missing the snail`);
+        assert.equal(snail.to.value, `@`, `Snail's value`);
+        const [interrobang] = (<Keys>keys).keys.filter(({ id }) => id.value === 'interrobang');
+        assert.ok(interrobang,`Missing the interrobang`);
+        assert.equal(interrobang.to.value, `‽`, `Interrobang's value`);
+      },
+    },
   ], keysDependencies);
 });
 
diff --git a/developer/src/kmc-package/test/fixtures/bcp47/invalid_bcp47_1.kps b/developer/src/kmc-package/test/fixtures/bcp47/invalid_bcp47_1.kps
new file mode 100644
index 00000000000..8a656e38baa
--- /dev/null
+++ b/developer/src/kmc-package/test/fixtures/bcp47/invalid_bcp47_1.kps
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package>
+  <System>
+    <KeymanDeveloperVersion>10.0.700.0</KeymanDeveloperVersion>
+    <FileVersion>7.0</FileVersion>
+  </System>
+  <Info>
+    <Version>1.0</Version>
+    <Name>valid_bcp47</Name>
+  </Info>
+  <Files>
+    <File>
+      <Name>test.kmx</Name>
+    </File>
+  </Files>
+  <Keyboards>
+    <Keyboard>
+      <Name>Invalid BCP 47</Name>
+      <ID>test</ID>
+      <Version>1.0</Version>
+      <Languages>
+        <Language ID="km-mm-mm">Not a language tag</Language>
+      </Languages>
+    </Keyboard>
+  </Keyboards>
+  <Strings/>
+</Package>
diff --git a/developer/src/kmc-package/test/fixtures/bcp47/test.kmx b/developer/src/kmc-package/test/fixtures/bcp47/test.kmx
new file mode 100644
index 00000000000..9e4bd15d391
Binary files /dev/null and b/developer/src/kmc-package/test/fixtures/bcp47/test.kmx differ
diff --git a/developer/src/kmc-package/test/fixtures/bcp47/valid_bcp47.kps b/developer/src/kmc-package/test/fixtures/bcp47/valid_bcp47.kps
new file mode 100644
index 00000000000..72461e04c28
--- /dev/null
+++ b/developer/src/kmc-package/test/fixtures/bcp47/valid_bcp47.kps
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package>
+  <System>
+    <KeymanDeveloperVersion>10.0.700.0</KeymanDeveloperVersion>
+    <FileVersion>7.0</FileVersion>
+  </System>
+  <Options>
+    <ExecuteProgram></ExecuteProgram>
+    <MSIFileName></MSIFileName>
+    <MSIOptions></MSIOptions>
+  </Options>
+  <StartMenu>
+    <Folder></Folder>
+    <Items/>
+  </StartMenu>
+  <Info>
+    <Version URL="">1.0</Version>
+    <Name URL="">valid_bcp47</Name>
+  </Info>
+  <Files>
+    <File>
+      <Name>test.kmx</Name>
+    </File>
+  </Files>
+  <Keyboards>
+    <Keyboard>
+      <Name>Valid BCP 47</Name>
+      <ID>test</ID>
+      <Version>1.0</Version>
+      <Languages>
+        <Language ID="km">Central Khmer (Khmer, Cambodia)</Language>
+        <Language ID="str-x-sencoten">SENCOTEN</Language>
+        <Language ID="str-sencoten">Unregistered variant of Straits Salish</Language>
+        <Language ID="km-Khmr-KM-x-boran">Private variant of "Old" Khmer</Language>
+      </Languages>
+    </Keyboard>
+  </Keyboards>
+  <Strings/>
+</Package>
diff --git a/developer/src/kmc-package/test/package-compiler.tests.ts b/developer/src/kmc-package/test/package-compiler.tests.ts
index 7952e2145a2..16c523bda9a 100644
--- a/developer/src/kmc-package/test/package-compiler.tests.ts
+++ b/developer/src/kmc-package/test/package-compiler.tests.ts
@@ -12,6 +12,7 @@ import { makePathToFixture } from './helpers/index.js';
 
 import { KmpCompiler } from '../src/compiler/kmp-compiler.js';
 import { PackageCompilerMessages } from '../src/compiler/package-compiler-messages.js';
+import { PackageValidation } from '../src/compiler/package-validation.js';
 
 const debug = false;
 
@@ -29,6 +30,13 @@ describe('KmpCompiler', function () {
     assert.isTrue(await kmpCompiler.init(callbacks, null));
   });
 
+  this.afterEach(function() {
+    if(this.currentTest?.isFailed()) {
+      callbacks.printMessages();
+    }
+    callbacks.clear();
+  });
+
   for (let modelID of MODELS) {
     const kpsPath = modelID.includes('withfolders') ?
       makePathToFixture(modelID, 'source', `${modelID}.model.kps`) : makePathToFixture(modelID, `${modelID}.model.kps`);
@@ -284,4 +292,20 @@ describe('KmpCompiler', function () {
     assert.equal(kmpJson.keyboards[0].version, '4.0');  // picks up example.kmx's version
   });
 
+  it(`should handle a range of valid BCP47 tags`, function () {
+    const inputFilename = makePathToFixture('bcp47', 'valid_bcp47.kps');
+    const kmpJson = kmpCompiler.transformKpsToKmpObject(inputFilename);
+    assert.isNotNull(kmpJson);
+    const validation = new PackageValidation(callbacks, {});
+    assert.isTrue(validation.validate(inputFilename, kmpJson));
+  });
+
+  it(`should reject an invalid BCP47 tag`, function () {
+    const inputFilename = makePathToFixture('bcp47', 'invalid_bcp47_1.kps');
+    const kmpJson = kmpCompiler.transformKpsToKmpObject(inputFilename);
+    assert.isNotNull(kmpJson);
+    const validation = new PackageValidation(callbacks, {});
+    assert.isFalse(validation.validate(inputFilename, kmpJson));
+  });
+
 });
diff --git a/developer/src/kmc/src/commands/buildClasses/BuildLdmlKeyboard.ts b/developer/src/kmc/src/commands/buildClasses/BuildLdmlKeyboard.ts
index 6ac98c9b92e..6a6300b646b 100644
--- a/developer/src/kmc/src/commands/buildClasses/BuildLdmlKeyboard.ts
+++ b/developer/src/kmc/src/commands/buildClasses/BuildLdmlKeyboard.ts
@@ -4,6 +4,7 @@ import { CompilerOptions, CompilerCallbacks } from '@keymanapp/developer-utils';
 import { LDMLKeyboardXMLSourceFileReader } from '@keymanapp/developer-utils';
 import { BuildActivity } from './BuildActivity.js';
 import { fileURLToPath } from 'url';
+import { dirname } from 'node:path';
 
 export class BuildLdmlKeyboard extends BuildActivity {
   public get name(): string { return 'LDML keyboard'; }
@@ -13,7 +14,8 @@ export class BuildLdmlKeyboard extends BuildActivity {
   public async build(infile: string, outfile: string, callbacks: CompilerCallbacks, options: CompilerOptions): Promise<boolean> {
     // TODO-LDML: consider hardware vs touch -- touch-only layout will not have a .kvk
     const ldmlCompilerOptions: kmcLdml.LdmlCompilerOptions = {...options, readerOptions: {
-      importsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL))
+      cldrImportsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL)),
+      localImportsPaths: [ dirname(infile) ], // local dir
     }};
     const compiler = new kmcLdml.LdmlKeyboardCompiler();
     return await super.runCompiler(compiler, infile, outfile, callbacks, ldmlCompilerOptions);
diff --git a/developer/src/kmc/src/commands/buildTestData/index.ts b/developer/src/kmc/src/commands/buildTestData/index.ts
index c958673c2fa..5343c81702d 100644
--- a/developer/src/kmc/src/commands/buildTestData/index.ts
+++ b/developer/src/kmc/src/commands/buildTestData/index.ts
@@ -7,6 +7,7 @@ import { fileURLToPath } from 'url';
 import { CommandLineBaseOptions } from 'src/util/baseOptions.js';
 import { exitProcess } from '../../util/sysexits.js';
 import { InfrastructureMessages } from '../../messages/infrastructureMessages.js';
+import { dirname } from 'node:path';
 
 export async function buildTestData(infile: string, _options: any, commander: any): Promise<void> {
   const options: CommandLineBaseOptions = commander.optsWithGlobals();
@@ -17,7 +18,8 @@ export async function buildTestData(infile: string, _options: any, commander: an
     saveDebug: false,
     shouldAddCompilerVersion: false,
     readerOptions: {
-      importsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL))
+      cldrImportsPath: fileURLToPath(new URL(...LDMLKeyboardXMLSourceFileReader.defaultImportsURL)),
+      localImportsPaths: [ dirname(infile) ], // local dir
     }
   };
 
diff --git a/developer/src/kmc/src/commands/copy.ts b/developer/src/kmc/src/commands/copy.ts
index 9231ba3a5ec..2f22b24a0a4 100644
--- a/developer/src/kmc/src/commands/copy.ts
+++ b/developer/src/kmc/src/commands/copy.ts
@@ -27,8 +27,9 @@ export function declareCopy(program: Command) {
       * a .kpj file, e.g. ./keyboards/khmer_angkor/khmer_angkor.kpj
       * a local folder (with a .kpj file in it), e.g. ./keyboards/khmer_angkor
       * a cloud keyboard or lexical model, cloud:id, e.g. cloud:khmer_angkor
-      * a GitHub repository, optional branch, and path, github:owner/repo[:branch]:path
-        e.g. github:keyman-keyboards/khmer_angkor:main:/khmer_angkor.kpj
+      * a GitHub repository, branch, and path, [https://]github.com/owner/repo/tree/branch/path
+        e.g. https://github.com/keyman-keyboards/khmer_angkor/tree/main/khmer_angkor.kpj or
+             github.com/keymanapp/keyboards/tree/master/release/k/khmer_angkor
     `);
   }
 
diff --git a/linux/debian/libkeymancore2.symbols b/linux/debian/libkeymancore2.symbols
index 968f155551b..5ecfeb58a28 100644
--- a/linux/debian/libkeymancore2.symbols
+++ b/linux/debian/libkeymancore2.symbols
@@ -18,7 +18,6 @@ libkeymancore.so.2 libkeymancore2 #MINVER#
  km_core_keyboard_get_key_list@Base 17.0.195
  km_core_keyboard_imx_list_dispose@Base 17.0.195
  km_core_keyboard_key_list_dispose@Base 17.0.195
- km_core_keyboard_load@Base 17.0.195
  km_core_keyboard_load_from_blob@Base 18.0.101
  km_core_options_list_size@Base 17.0.195
  km_core_process_event@Base 17.0.195
diff --git a/linux/debian/tests/test-build b/linux/debian/tests/test-build
index 9a48325793c..45186784abe 100755
--- a/linux/debian/tests/test-build
+++ b/linux/debian/tests/test-build
@@ -41,7 +41,7 @@ int main(int argc, char *argv[]) {
   km_core_option_item opts[] = {KM_CORE_OPTIONS_END};
   km_core_keyboard *kb = NULL;
   km_core_state *state = NULL;
-  km_core_keyboard_load(NULL, &kb);
+  km_core_keyboard_load_from_blob(NULL, NULL, 0, &kb);
   km_core_state_create(kb, opts, &state);
   km_core_actions const *a = km_core_state_get_actions(state);
 }
@@ -62,7 +62,7 @@ echo "build 3: OK"
 #   km_core_option_item opts[] = {KM_CORE_OPTIONS_END};
 #   km_core_keyboard *kb = NULL;
 #   km_core_state *state = NULL;
-#   km_core_keyboard_load(NULL, &kb);
+#   km_core_keyboard_load_from_blob(NULL, NULL, 0, &kb);
 #   km_core_state_create(kb, opts, &state);
 #   km_core_actions const *a = km_core_state_get_actions(state);
 # }
diff --git a/mac/Keyman4MacIM/Keyman4MacIM.xcodeproj/project.pbxproj b/mac/Keyman4MacIM/Keyman4MacIM.xcodeproj/project.pbxproj
index 51cf7185509..483998a16e0 100644
--- a/mac/Keyman4MacIM/Keyman4MacIM.xcodeproj/project.pbxproj
+++ b/mac/Keyman4MacIM/Keyman4MacIM.xcodeproj/project.pbxproj
@@ -35,6 +35,7 @@
 		29BE9D872CA3C21900B67DE7 /* KMModifierMapping.m in Sources */ = {isa = PBXBuildFile; fileRef = 29BE9D862CA3C21900B67DE7 /* KMModifierMapping.m */; };
 		29C1CDE22C5B2F8B003C23BB /* KMSettingsRepository.m in Sources */ = {isa = PBXBuildFile; fileRef = D861B03E2C5747F70003675E /* KMSettingsRepository.m */; };
 		29C1CDE32C5B2F8B003C23BB /* KMDataRepository.m in Sources */ = {isa = PBXBuildFile; fileRef = 29015ABC2C58D86F00CCBB94 /* KMDataRepository.m */; };
+		29DD5F442CFEF88000683388 /* SILAndikaV1RGB.png in Resources */ = {isa = PBXBuildFile; fileRef = 29DD5F432CFEF88000683388 /* SILAndikaV1RGB.png */; };
 		37A245C12565DFA6000BBF92 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 37A245C02565DFA6000BBF92 /* Assets.xcassets */; };
 		37AE5C9D239A7B770086CC7C /* qrcode.min.js in Resources */ = {isa = PBXBuildFile; fileRef = 37AE5C9C239A7B770086CC7C /* qrcode.min.js */; };
 		37C2B0CB25FF2C350092E16A /* Help in Resources */ = {isa = PBXBuildFile; fileRef = 37C2B0CA25FF2C340092E16A /* Help */; };
@@ -84,7 +85,6 @@
 		E213601E2142D7C000A043B7 /* keyman-88.png in Resources */ = {isa = PBXBuildFile; fileRef = E213601D2142D7BF00A043B7 /* keyman-88.png */; };
 		E21799051FC5B7BC00F2D66A /* KMInputMethodEventHandler.m in Sources */ = {isa = PBXBuildFile; fileRef = E21799041FC5B7BC00F2D66A /* KMInputMethodEventHandler.m */; };
 		E21E645820C04EA8000D6274 /* logo.png in Resources */ = {isa = PBXBuildFile; fileRef = E21E645720C04EA7000D6274 /* logo.png */; };
-		E23380FB21407AA100B90591 /* SILInBlue76.png in Resources */ = {isa = PBXBuildFile; fileRef = E23380FA21407AA100B90591 /* SILInBlue76.png */; };
 		E240F599202DED740000067D /* KMPackage.m in Sources */ = {isa = PBXBuildFile; fileRef = E240F598202DED740000067D /* KMPackage.m */; };
 		E2585A7F20DD6C3C00CBB994 /* KMMethodEventHandlerTests.kmx in Resources */ = {isa = PBXBuildFile; fileRef = E2585A7E20DD6C3C00CBB994 /* KMMethodEventHandlerTests.kmx */; };
 		E2585A8120DD7CF100CBB994 /* TestAppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = E2585A8020DD7CF100CBB994 /* TestAppDelegate.m */; };
@@ -275,6 +275,7 @@
 		29D470972C648D5200224B4F /* el */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = el; path = el.lproj/KMKeyboardHelpWindowController.strings; sourceTree = "<group>"; };
 		29D470982C648D5200224B4F /* el */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = el; path = el.lproj/MainMenu.strings; sourceTree = "<group>"; };
 		29D470992C648D7100224B4F /* el */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = el; path = el.lproj/Localizable.strings; sourceTree = "<group>"; };
+		29DD5F432CFEF88000683388 /* SILAndikaV1RGB.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = SILAndikaV1RGB.png; sourceTree = "<group>"; };
 		29DD8400276C49E20066A16E /* am */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = am; path = am.lproj/KMAboutWindowController.strings; sourceTree = "<group>"; };
 		29DD8401276C49E20066A16E /* am */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = am; path = am.lproj/preferences.strings; sourceTree = "<group>"; };
 		29DD8402276C49E30066A16E /* am */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = am; path = am.lproj/KMInfoWindowController.strings; sourceTree = "<group>"; };
@@ -379,7 +380,6 @@
 		E21799031FC5B74D00F2D66A /* KMInputMethodEventHandler.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KMInputMethodEventHandler.h; sourceTree = "<group>"; };
 		E21799041FC5B7BC00F2D66A /* KMInputMethodEventHandler.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KMInputMethodEventHandler.m; sourceTree = "<group>"; };
 		E21E645720C04EA7000D6274 /* logo.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; name = logo.png; path = Keyman4MacIM/KMConfiguration/logo.png; sourceTree = SOURCE_ROOT; };
-		E23380FA21407AA100B90591 /* SILInBlue76.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; name = SILInBlue76.png; path = Keyman4MacIM/Images/SILInBlue76.png; sourceTree = SOURCE_ROOT; };
 		E240F597202DED300000067D /* KMPackage.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KMPackage.h; sourceTree = "<group>"; };
 		E240F598202DED740000067D /* KMPackage.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KMPackage.m; sourceTree = "<group>"; };
 		E2585A7E20DD6C3C00CBB994 /* KMMethodEventHandlerTests.kmx */ = {isa = PBXFileReference; lastKnownFileType = file; path = KMMethodEventHandlerTests.kmx; sourceTree = "<group>"; };
@@ -639,7 +639,7 @@
 				98BF92421BF01CBE0002126A /* KMAboutWindowController.m */,
 				293EA3E827140D8100545EED /* KMAboutWindowController.xib */,
 				E213601D2142D7BF00A043B7 /* keyman-88.png */,
-				E23380FA21407AA100B90591 /* SILInBlue76.png */,
+				29DD5F432CFEF88000683388 /* SILAndikaV1RGB.png */,
 				98BF92461BF01D890002126A /* image.jpg */,
 				98BF92531BF040A50002126A /* title.png */,
 			);
@@ -846,7 +846,6 @@
 				989C9C131A7876DE00A20425 /* Images.xcassets in Resources */,
 				98E2CEA11A92C39C00AE2455 /* InfoPlist.strings in Resources */,
 				E21E645820C04EA8000D6274 /* logo.png in Resources */,
-				E23380FB21407AA100B90591 /* SILInBlue76.png in Resources */,
 				9874C3211B536847000BB543 /* info.png in Resources */,
 				98E672A01B532F5E00DBDE2F /* KMDownloadKBWindowController.xib in Resources */,
 				37AE5C9D239A7B770086CC7C /* qrcode.min.js in Resources */,
@@ -862,6 +861,7 @@
 				293EA3E627140D8100545EED /* KMAboutWindowController.xib in Resources */,
 				37A245C12565DFA6000BBF92 /* Assets.xcassets in Resources */,
 				293EA3EB27140DEC00545EED /* preferences.xib in Resources */,
+				29DD5F442CFEF88000683388 /* SILAndikaV1RGB.png in Resources */,
 				9800EC5A1C02940300BF0FB5 /* keyman-for-mac-os-license.html in Resources */,
 				989C9C161A7876DE00A20425 /* MainMenu.xib in Resources */,
 				29B42A602728343B00EDD5D3 /* KMKeyboardHelpWindowController.xib in Resources */,
diff --git a/mac/Keyman4MacIM/Keyman4MacIM/Images/SILInBlue76.png b/mac/Keyman4MacIM/Keyman4MacIM/Images/SILInBlue76.png
deleted file mode 100644
index 0275859531c..00000000000
Binary files a/mac/Keyman4MacIM/Keyman4MacIM/Images/SILInBlue76.png and /dev/null differ
diff --git a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/Base.lproj/KMAboutWindowController.xib b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/Base.lproj/KMAboutWindowController.xib
index b6c018d1a56..fa15b43024f 100644
--- a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/Base.lproj/KMAboutWindowController.xib
+++ b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/Base.lproj/KMAboutWindowController.xib
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="19162" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="32700.99.1234" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
     <dependencies>
         <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="19162"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="22690"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
@@ -20,7 +20,7 @@
             <windowStyleMask key="styleMask" closable="YES"/>
             <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
             <rect key="contentRect" x="196" y="240" width="450" height="318"/>
-            <rect key="screenRect" x="0.0" y="0.0" width="1440" height="875"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="1920" height="1055"/>
             <view key="contentView" id="se5-gp-TjO" customClass="KMAboutBGView">
                 <rect key="frame" x="0.0" y="0.0" width="450" height="318"/>
                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
@@ -42,8 +42,12 @@
                         </constraints>
                     </customView>
                     <imageView horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="sgd-KC-LbG" userLabel="SIL Image View">
-                        <rect key="frame" x="403" y="263" width="32" height="36"/>
-                        <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyUpOrDown" image="SILInBlue76" id="0zb-i2-bhN"/>
+                        <rect key="frame" x="366" y="259" width="74" height="44"/>
+                        <constraints>
+                            <constraint firstAttribute="width" constant="74" id="hjC-xL-hLw"/>
+                            <constraint firstAttribute="height" constant="44" id="uhI-gi-EpR"/>
+                        </constraints>
+                        <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyUpOrDown" image="SILAndikaV1RGB" id="0zb-i2-bhN"/>
                     </imageView>
                     <imageView autoresizesSubviews="NO" horizontalHuggingPriority="251" verticalHuggingPriority="251" tag="1" translatesAutoresizingMaskIntoConstraints="NO" id="UOr-Co-IuK" userLabel="Keyman Image View">
                         <rect key="frame" x="15" y="252" width="400" height="58"/>
@@ -100,29 +104,29 @@
                             <stackView autoresizesSubviews="NO" orientation="vertical" alignment="trailing" spacing="12" horizontalStackHuggingPriority="750" verticalStackHuggingPriority="500" verticalClippingResistancePriority="500" horizontalHuggingPriority="750" detachesHiddenViews="YES" translatesAutoresizingMaskIntoConstraints="NO" id="a6P-E8-rqT" userLabel="Button Stack View">
                                 <rect key="frame" x="306" y="0.0" width="120" height="52"/>
                                 <endViews>
-                                    <button horizontalHuggingPriority="750" verticalHuggingPriority="750" misplaced="YES" translatesAutoresizingMaskIntoConstraints="NO" id="xqc-bi-pPI">
-                                        <rect key="frame" x="10" y="25" width="117" height="32"/>
-                                        <constraints>
-                                            <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="18" id="W0C-Lh-ns5"/>
-                                            <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="120" id="l3A-K7-gqm"/>
-                                        </constraints>
+                                    <button horizontalHuggingPriority="750" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="xqc-bi-pPI">
+                                        <rect key="frame" x="-7" y="25" width="134" height="32"/>
                                         <buttonCell key="cell" type="push" title="Configuration" bezelStyle="rounded" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="vkh-b5-vO7">
                                             <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
                                             <font key="font" metaFont="system"/>
                                         </buttonCell>
+                                        <constraints>
+                                            <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="18" id="W0C-Lh-ns5"/>
+                                            <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="120" id="l3A-K7-gqm"/>
+                                        </constraints>
                                         <connections>
                                             <action selector="configAction:" target="-2" id="3W6-cm-6P5"/>
                                         </connections>
                                     </button>
                                     <button horizontalHuggingPriority="249" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="XIT-T3-xre">
                                         <rect key="frame" x="-7" y="-7" width="134" height="32"/>
-                                        <constraints>
-                                            <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="18" id="CPF-NR-u5o"/>
-                                        </constraints>
                                         <buttonCell key="cell" type="push" title="Close" bezelStyle="rounded" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="Kab-Up-fYH">
                                             <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
                                             <font key="font" metaFont="system"/>
                                         </buttonCell>
+                                        <constraints>
+                                            <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="18" id="CPF-NR-u5o"/>
+                                        </constraints>
                                         <connections>
                                             <action selector="closeAction:" target="-2" id="frJ-pm-Iyg"/>
                                         </connections>
@@ -165,7 +169,7 @@
                     <constraint firstItem="UOr-Co-IuK" firstAttribute="leading" secondItem="se5-gp-TjO" secondAttribute="leading" constant="15" id="Wq2-xT-mCh"/>
                     <constraint firstItem="wFc-QI-nGq" firstAttribute="top" secondItem="UOr-Co-IuK" secondAttribute="bottom" id="ZZw-D6-rjh"/>
                     <constraint firstItem="FYn-ZH-f76" firstAttribute="top" secondItem="wFc-QI-nGq" secondAttribute="bottom" id="kuI-RR-4wa"/>
-                    <constraint firstAttribute="trailing" secondItem="sgd-KC-LbG" secondAttribute="trailing" constant="15" id="xGg-Cj-G34"/>
+                    <constraint firstAttribute="trailing" secondItem="sgd-KC-LbG" secondAttribute="trailing" constant="10" id="xGg-Cj-G34"/>
                 </constraints>
             </view>
             <connections>
@@ -175,7 +179,7 @@
         </window>
     </objects>
     <resources>
-        <image name="SILInBlue76" width="31.799999237060547" height="35.400001525878906"/>
+        <image name="SILAndikaV1RGB" width="17.760000228881836" height="10.560000419616699"/>
         <image name="image" width="1125" height="375"/>
         <image name="keyman-88" width="400" height="140.80000305175781"/>
     </resources>
diff --git a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMAboutBGView.m b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMAboutBGView.m
index 361967506ed..de5e5017519 100644
--- a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMAboutBGView.m
+++ b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMAboutBGView.m
@@ -34,6 +34,7 @@ - (void)drawRect:(NSRect)rect {
   NSRectFillUsingOperation(topFill, NSCompositingOperationSourceOver);
   [[NSColor windowBackgroundColor] setFill];
   NSRectFillUsingOperation(botFill, NSCompositingOperationSourceOver);
+  
 }
 
 - (BOOL)mouseDownCanMoveWindow {
diff --git a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMBarView.m b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMBarView.m
index b9a400706a3..8364a6cb310 100644
--- a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMBarView.m
+++ b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/KMBarView.m
@@ -7,31 +7,39 @@
 //
 
 #import "KMBarView.h"
+#import "KMLogs.h"
 
 @implementation KMBarView
 
+/**
+ * draws stripe in three colors as part of Keyman branding
+ * over half is orange, followed by red and blue segments
+ */
 - (void)drawRect:(NSRect)rect {
   CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext] CGContext];
   
-  NSRect rect1 = NSMakeRect(0, 0, rect.size.width*0.56, rect.size.height);
-  NSRect rect2 = NSMakeRect(rect1.size.width, 0, rect.size.width*0.23, rect.size.height);
-  NSRect rect3 = NSMakeRect(rect2.origin.x + rect2.size.width, 0, rect.size.width*0.21, rect.size.height);
+  NSRect barRect = self.frame;
+  os_log_debug([KMLogs uiLog], "KMBarView drawRect: %{public}@ frame: %{public}@", NSStringFromRect(rect), NSStringFromRect(barRect));
+
+  NSRect orangeRect = NSMakeRect(0, 0, barRect.size.width*0.56, barRect.size.height);
+  NSRect redRect = NSMakeRect(orangeRect.size.width, 0, barRect.size.width*0.23, barRect.size.height);
+  NSRect blueRect = NSMakeRect(redRect.origin.x + redRect.size.width, 0, barRect.size.width*0.21, barRect.size.height);
   
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:246.0/255.0 green:137.0/255.0 blue:36.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect1);
+  CGContextAddRect(context, orangeRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
   
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:204.0/255.0 green:56.0/255.0 blue:70.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect2);
+  CGContextAddRect(context, redRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
   
   CGContextSetFillColorWithColor(context, [NSColor colorWithSRGBRed:121.0/255.0 green:195.0/255.0 blue:218.0/255.0 alpha:1.0].CGColor);
   CGContextBeginPath(context);
-  CGContextAddRect(context, rect3);
+  CGContextAddRect(context, blueRect);
   CGContextClosePath(context);
   CGContextDrawPath(context, kCGPathFill);
 }
diff --git a/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/SILAndikaV1RGB.png b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/SILAndikaV1RGB.png
new file mode 100644
index 00000000000..c58f4d70063
Binary files /dev/null and b/mac/Keyman4MacIM/Keyman4MacIM/KMAboutWindow/SILAndikaV1RGB.png differ
diff --git a/resources/shellHelperFunctions.sh b/resources/shellHelperFunctions.sh
index eaa369b0304..bcd3da0d853 100755
--- a/resources/shellHelperFunctions.sh
+++ b/resources/shellHelperFunctions.sh
@@ -281,13 +281,17 @@ verify_npm_setup() {
 # see /docs/build/node.md
 _select_node_version_with_nvm() {
   local REQUIRED_NODE_VERSION="$("$JQ" -r '.engines.node' "$KEYMAN_ROOT/package.json")"
+  local CURRENT_NODE_VERSION
 
   if [[ $BUILDER_OS != win ]]; then
     # launch nvm in a sub process, see _builder_nvm.sh for details
     "$KEYMAN_ROOT/resources/build/_builder_nvm.sh" "$REQUIRED_NODE_VERSION"
   else
-    nvm install "$REQUIRED_NODE_VERSION"
-    nvm use "$REQUIRED_NODE_VERSION"
+    CURRENT_NODE_VERSION="$(node --version)"
+    if [[ "$CURRENT_NODE_VERSION" != "v$REQUIRED_NODE_VERSION" ]]; then
+      start //wait //b nvm install "$REQUIRED_NODE_VERSION"
+      start //wait //b nvm use "$REQUIRED_NODE_VERSION"
+    fi
   fi
 
   # Now, check that the node version is correct, on all systems
@@ -296,7 +300,7 @@ _select_node_version_with_nvm() {
   # https://github.com/coreybutler/nvm-windows/issues/738
 
   # note the 'v' prefix that node emits (and npm doesn't!)
-  local CURRENT_NODE_VERSION="$(node --version)"
+  CURRENT_NODE_VERSION="$(node --version)"
   if [[ "$CURRENT_NODE_VERSION" != "v$REQUIRED_NODE_VERSION" ]]; then
     builder_die "Attempted to select node.js version $REQUIRED_NODE_VERSION but found $CURRENT_NODE_VERSION instead"
   fi
@@ -306,13 +310,13 @@ check-markdown() {
   node "$KEYMAN_ROOT/resources/tools/check-markdown" --root "$1"
 }
 
-# 
+#
 # Runs eslint, builds tests, and then runs tests with mocha + c8 (coverage)
-# 
+#
 # Usage:
 #   builder_run_action  test    builder_do_typescript_tests [coverage_threshold]
 # Parameters:
-#   1: coverage_threshold   optional, minimum coverage for c8 to pass tests, 
+#   1: coverage_threshold   optional, minimum coverage for c8 to pass tests,
 #                           defaults to 90 (percent)
 #
 # Todo:
@@ -342,4 +346,4 @@ builder_do_typescript_tests() {
     builder_echo warning "Coverage thresholds are currently $C8_THRESHOLD%, which is lower than ideal."
     builder_echo warning "Please increase threshold in build.sh as test coverage improves."
   fi
-}
\ No newline at end of file
+}
diff --git a/windows/src/desktop/kmshell/locale/it-IT/strings.xml b/windows/src/desktop/kmshell/locale/it-IT/strings.xml
index 13e1cee8164..797fb766335 100644
--- a/windows/src/desktop/kmshell/locale/it-IT/strings.xml
+++ b/windows/src/desktop/kmshell/locale/it-IT/strings.xml
@@ -296,7 +296,7 @@
   <!-- Context: Configuration Dialog - Options tab -->
   <!-- String Type: FormatString -->
   <!-- Introduced: 18.0.95 -->
-  <string name="koRightModifierHK" comment="General options - Right Ctrl Alt and Shift trigger hotkey">Allow right modifier for hotkeys</string>
+  <string name="koRightModifierHK" comment="General options - Right Ctrl Alt and Shift trigger hotkey">Consenti tasti modificatori a destra</string>
   <!-- Context: Configuration Dialog - Options tab -->
   <!-- String Type: FormatString -->
   <!-- Introduced: 9.0.480.0 -->
@@ -425,11 +425,11 @@
   <!-- Context: Configuration Dialog - Support tab -->
   <!-- String Type: PlainText -->
   <!-- Introduced: 18.0.94.0 -->
-  <string name="S_Support_CreatedBySILGlobal" comment="Created by {SIL Global} ">Created by %1$s</string>
+  <string name="S_Support_CreatedBySILGlobal" comment="Created by {SIL Global} ">Creato da %1$s</string>
   <!-- Context: Configuration Dialog - Support tab -->
   <!-- String Type: PlainText -->
   <!-- Introduced: 18.0.94.0 -->
-  <string name="S_Support_CopyrightSILGlobal" comment="Copyright © {SIL Global}. All Rights Reserved.">Copyright © %1$s. All Rights Reserved.</string>
+  <string name="S_Support_CopyrightSILGlobal" comment="Copyright © {SIL Global}. All Rights Reserved.">Copyright ©️ %1$s. Tutti i diritti riservati.</string>
   <!-- Context: Configuration Dialog - Support tab -->
   <!-- String Type: PlainText -->
   <!-- Introduced: 7.0.230.0 -->
@@ -629,7 +629,7 @@ che usi in Windows. Le tastiere Keyman si adatteranno automaticamente al layout
   <!-- Context: Splash Dialog -->
   <!-- String Type: PlainText -->
   <!-- Introduced: 18.0 -->
-  <string name="S_Splash_Start_2" comment="Start {Keyman} button">Start %1$s</string>
+  <string name="S_Splash_Start_2" comment="Start {Keyman} button">Avvia %1$s</string>
   <!-- Context: Splash Dialog -->
   <!-- String Type: PlainText -->
   <!-- Introduced: 8.0.294.0 -->
diff --git a/windows/src/engine/keyman32/K32_load.cpp b/windows/src/engine/keyman32/K32_load.cpp
index 6ad3fc90b2a..a1a927ab6fa 100644
--- a/windows/src/engine/keyman32/K32_load.cpp
+++ b/windows/src/engine/keyman32/K32_load.cpp
@@ -127,7 +127,7 @@ BOOL LoadlpKeyboard(int i)
   free(buffer);
 
   if (err_status != KM_CORE_STATUS_OK) {
-    SendDebugMessageFormat("km_core_keyboard_load failed for %ls with error status [%d]", keyboardPath, err_status);
+    SendDebugMessageFormat("km_core_keyboard_load_from_blob failed for %ls with error status [%d]", keyboardPath, err_status);
     goto ExitError;
   }
   delete[] keyboardPath;
diff --git a/windows/src/engine/keyman32/tests/keyman-engine-tests/keyboardoptionstests.cpp b/windows/src/engine/keyman32/tests/keyman-engine-tests/keyboardoptionstests.cpp
index 282ee48ac63..ad9799724a0 100644
--- a/windows/src/engine/keyman32/tests/keyman-engine-tests/keyboardoptionstests.cpp
+++ b/windows/src/engine/keyman32/tests/keyman-engine-tests/keyboardoptionstests.cpp
@@ -16,7 +16,7 @@ TEST(KEYBOARDOPTIONS, SetupCoreEnvironment) {
   km_core_path_name dummyPath = L"dummyActions.mock";
 
   EXPECT_EQ(SetupCoreEnvironment(&core_env_opts), TRUE);
-  EXPECT_EQ(km_core_keyboard_load(dummyPath, &kp->lpCoreKeyboard), KM_CORE_STATUS_OK);
+  EXPECT_EQ(km_core_keyboard_load_from_blob(dummyPath, (void *)"MOCK", 4, &kp->lpCoreKeyboard), KM_CORE_STATUS_OK);
   EXPECT_EQ(km_core_state_create(kp->lpCoreKeyboard, core_env_opts, &kp->lpCoreKeyboardState), KM_CORE_STATUS_OK);
 
   km_core_option_item *expected_items = new km_core_option_item[5];