diff --git a/jest.config.ts b/jest.config.ts
index de342db8..5b1d06de 100644
--- a/jest.config.ts
+++ b/jest.config.ts
@@ -1,14 +1,14 @@
-import type { JestConfigWithTsJest } from 'ts-jest'
+import { type JestConfigWithTsJest } from 'ts-jest'
 
 const jestConfig: JestConfigWithTsJest = {
-    // [...]
-    preset: 'ts-jest/presets/default-esm', // or other ESM presets
+    // preset: 'ts-jest/presets/default-esm', // or other ESM presets
+    preset: 'ts-jest', // or other ESM presets
+    moduleDirectories: ['node_modules', '<rootDir>'],
+    roots: ['src'],
     moduleNameMapper: {
-        '^(\\.{1,2}/.*)\\.js$': '$1',
+        '^@std$': '<rootDir>/src/std/$1',
     },
     transform: {
-        // '^.+\\.[tj]sx?$' to process js/ts with `ts-jest`
-        // '^.+\\.m?[tj]sx?$' to process js/ts/mjs/mts with `ts-jest`
         '^.+\\.tsx?$': [
             'ts-jest',
             {
@@ -17,5 +17,4 @@ const jestConfig: JestConfigWithTsJest = {
         ],
     },
 }
-
 export default jestConfig
diff --git a/package.json b/package.json
index 8f872f5d..2a6717d4 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
         "build": "npm run check && node esbuild.config.mjs production",
         "check": "svelte-check --tsconfig tsconfig.json",
         "test": "jest",
+        "test-w": "jest --watch",
         "version": "node version-bump.mjs && git add manifest.json versions.json"
     },
     "keywords": [],
@@ -37,4 +38,4 @@
         "fuse.js": "^6.6.2",
         "valibot": "^0.19.0"
     }
-}
+}
\ No newline at end of file
diff --git a/src/core/settings.test.ts b/src/core/settings.test.ts
index aa820199..93e00833 100644
--- a/src/core/settings.test.ts
+++ b/src/core/settings.test.ts
@@ -1,16 +1,10 @@
-import { parseSettings } from "./settings";
+import { NullSettingsError, parseSettings } from "./settings";
 import * as E from "fp-ts/Either";
 
 describe("parseSettings", () => {
-    it("should return the default settings when given null", () => {
+    it("should notify a NullSettingsError when given null", () => {
         const result = parseSettings(null);
-        expect(E.isRight(result)).toBe(true);
-        if (E.isRight(result)) {
-            expect(result.right).toEqual({
-                editorPosition: "right",
-                formDefinitions: [],
-            });
-        }
+        expect(result).toEqual(E.left(new NullSettingsError()));
     });
 
     it("should return the parsed settings when given valid input", () => {
@@ -19,8 +13,7 @@ describe("parseSettings", () => {
             formDefinitions: [],
         };
         const result = parseSettings(input);
-        expect(E.isRight(result)).toBe(true);
-        if (E.isRight(result)) expect(result.right).toEqual(input);
+        expect(result).toEqual(E.of(input));
     });
 
     it("should return a validation error when given invalid input", () => {
@@ -30,6 +23,7 @@ describe("parseSettings", () => {
         };
         const result = parseSettings(input);
         expect(E.isLeft(result)).toBe(true);
-        if (E.isLeft(result)) expect(result.left).toBeDefined();
+        if (E.isLeft(result)) expect(result.left).toBeDefined()
+        else fail("Expected a left value")
     });
 });
diff --git a/src/std/index.ts b/src/std/index.ts
index 28bf041d..c01cb50a 100644
--- a/src/std/index.ts
+++ b/src/std/index.ts
@@ -14,8 +14,6 @@ export const E = {
     tryCatchK,
 }
 
-export const O = {
-    Option
-}
+export const O = {}
 
 export const parse = tryCatchK(parseV, (e: unknown) => e as ValiError)
diff --git a/tsconfig.json b/tsconfig.json
index 55051ebc..1db31acf 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
     "compilerOptions": {
         "baseUrl": ".",
         "inlineSources": true,
+        "resolveJsonModule": true,
         "module": "ESNext",
         "target": "ES6",
         "allowJs": true,
@@ -32,6 +33,6 @@
         }
     },
     "include": [
-        "src/**/*",
+        "src/**/*"
     ]
 }
\ No newline at end of file