diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index cbdac3e..4000b88 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -4,12 +4,14 @@ on:
   push:
 jobs:
   nix:
-    name: Build flake example on ${{ matrix.os }}
+    name: ${{matrix.version}} on ${{matrix.os}}
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-    runs-on: ${{ matrix.os }}
+        version: [0.8.4, 0.9.3, 0.10.101]
+    runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v2.4.0
     - uses: cachix/install-nix-action@v15
-    - run: cd examples/flake && nix build --show-trace
+    - run: cd examples/ci && nix build '.#"${{matrix.version}}"' --show-trace
diff --git a/default.nix b/default.nix
index 410690b..c2921ac 100644
--- a/default.nix
+++ b/default.nix
@@ -13,7 +13,7 @@ let
         then "x86_64-darwin"
         else sdkSystem;
 
-      makeVersion = { systems, version }: (
+      makeVersion = { systems, url, version }: (
         if !acceptLicenseAgreement then
           error (builtins.concatStringsSep "\n" [
             ""
@@ -32,14 +32,7 @@ let
                 then systems.${resolvedSystem}.sha256
                 else error ("unsupported system: " + resolvedSystem);
               stripRoot = false;
-              url = builtins.concatStringsSep "/" [
-                "https://sdk.dfinity.org"
-                "downloads"
-                "dfx"
-                version
-                "${resolvedSystem}"
-                "dfx-${version}.tar.gz"
-              ];
+              url = url;
             };
             nativeBuildInputs = [
               self.makeWrapper
@@ -81,75 +74,107 @@ let
                 ln -s $CACHE_DIR/$binary $out/bin/$binary
               done
 
-              wrapProgram $CACHE_DIR/dfx --set DFX_CONFIG_ROOT $out
+              wrapProgram $CACHE_DIR/dfx --set DFX_CACHE_ROOT $out --set DFX_CONFIG_ROOT $TMP
               rm $out/bin/dfx
               ln -s $CACHE_DIR/dfx $out/bin/dfx
             '';
+            dontFixup = true;
             system = resolvedSystem;
             inherit version;
           }
       );
 
-      sdk-0_6_21 = makeVersion {
-        systems = {
-          "x86_64-darwin" = {
-            sha256 = "0i92rwk5x13q7f7nyrgc896w2mlbk63lkgmlrvmyciwbggjiv4pc";
-          };
-          "x86_64-linux" = {
-            sha256 = "06akn065x7vaqy56v5jn551zbw5a0wfxvn13q0hpskm2iwrwrpnb";
-          };
-        };
-        version = "0.6.21";
-      };
+      buildFromGitHub = { commit, ... }@args:
+        self.lib.fetchFromGitHub {
+          owner = "dfinity";
+          repo = "sdk";
+          rev = "f4e24bfee825b4023f85123583f470fc1846008d";
+          # sha256 = "FIXME";
+          sha256 = self.lib.fakeSha256;
+        }
+      ;
+
+      makeVersionFromGitHubRelease = { version, ... }@args:
+        makeVersion (args // {
+          url =  builtins.concatStringsSep "/" [
+            "https://github.com"
+            "dfinity"
+            "sdk"
+            "releases"
+            "download"
+            version
+            "dfx-${version}-${resolvedSystem}.tar.gz"
+          ];
+        })
+      ;
 
-      sdk-0_7_0-beta_8 = makeVersion {
+      makeVersionFromManifest = { version, ... }@args:
+        makeVersion (args // {
+          url =  builtins.concatStringsSep "/" [
+            "https://sdk.dfinity.org"
+            "downloads"
+            "dfx"
+            version
+            "${resolvedSystem}"
+            "dfx-${version}.tar.gz"
+          ];
+        })
+      ;
+
+      sdk-0_8_4 = makeVersionFromManifest {
         systems = {
           "x86_64-darwin" = {
-            sha256 = "19zq8n5ahqmbyp1bvhzv06zfaimxyfgzvanwfkf5px7gb1jcqf0m";
+            sha256 = "JJzZzUJtrgmKJdxXGVJedhP5t9maxh3YjIq1xhTcvfU=";
           };
           "x86_64-linux" = {
-            sha256 = "0nl29155076k23fx1j0zb92cr4p0dh8fk5cnjr67dy3nwlbygh3x";
+            sha256 = "yht96jUJ8gTK5Ual1ofItyRBnQ+qIrbk0lOlefu/L7I=";
           };
         };
-        version = "0.7.0-beta.8";
+        version = "0.8.4";
       };
 
-      sdk-0_8_4 = makeVersion {
+      sdk-0_9_3 = makeVersionFromManifest {
         systems = {
           "x86_64-darwin" = {
-            sha256 = "JJzZzUJtrgmKJdxXGVJedhP5t9maxh3YjIq1xhTcvfU=";
+            sha256 = "NMsETjzuZRVbnZ9slCmlHszB3GVrNGHBTKOZ6Y7EMEg=";
           };
           "x86_64-linux" = {
-            sha256 = "yht96jUJ8gTK5Ual1ofItyRBnQ+qIrbk0lOlefu/L7I=";
+            sha256 = "wuuPDC34nrFc/eUdAownsb/FQ3/C7UXh4phzwZf0yQs=";
           };
         };
-        version = "0.8.4";
+        version = "0.9.3";
       };
 
-      sdk-0_9_2 = makeVersion {
+      sdk-0_10_101 = makeVersionFromGitHubRelease {
         systems = {
           "x86_64-darwin" = {
             # sha256 = self.lib.fakeSha256;
-            sha256 = "UITKzQ9XzlsyO4DU72Ah2VH8736eQeW8GL6hzJHTaYA=";
+            sha256 = "YspeY5M87yRwm2iild0aMOTpVz75TKDrb5wEl6co7vI=";
           };
           "x86_64-linux" = {
             # sha256 = self.lib.fakeSha256;
-            sha256 = "41NP4AGp5Ve1Srm9a2jweOEEu6iKDGJEBr+SYtrqUSM=";
+            sha256 = "OI2m4KHsVEpOnAqZRo6BXB7rK0B8ra+w5f/h1zBtfb0=";
           };
         };
-        version = "0.9.2";
+        version = "0.10.101";
       };
 
       # https://sdk.dfinity.org/manifest.json
       versions = {
-        latest = sdk-0_8_4;
-        "0.6.21" = sdk-0_6_21;
-        "0.7.0-beta.8" = sdk-0_7_0-beta_8;
+        #latest = sdk-0_9_3;
+        latest = sdk-0_10_101;
         "0.8.4" = sdk-0_8_4;
-        "0.9.2" = sdk-0_9_2;
+        "0.9.3" = sdk-0_9_3;
+        "0.10.101" = sdk-0_10_101;
       };
     in
-      versions // { inherit makeVersion; }
+      versions // {
+        inherit
+          makeVersion
+          makeVersionFromGitHubRelease
+          makeVersionFromManifest
+        ;
+      }
   );
 in
   {
diff --git a/examples/basic/default.nix b/examples/basic/default.nix
new file mode 100644
index 0000000..c3c66a9
--- /dev/null
+++ b/examples/basic/default.nix
@@ -0,0 +1 @@
+(import ./release.nix).build
diff --git a/examples/basic/dfx.json b/examples/basic/dfx.json
new file mode 100644
index 0000000..923d9aa
--- /dev/null
+++ b/examples/basic/dfx.json
@@ -0,0 +1,10 @@
+{
+  "version": 1,
+  "dfx": "0.10.101",
+  "networks": {
+    "local": {
+      "bind": "127.0.0.1:8000",
+      "type": "ephemeral"
+    }
+  }
+}
diff --git a/examples/basic/release.nix b/examples/basic/release.nix
index 6fe7e1f..9b98b2a 100644
--- a/examples/basic/release.nix
+++ b/examples/basic/release.nix
@@ -3,7 +3,33 @@ let
      overlays = import ./nix/overlays.nix;
    };
 
-  shell = { version ? "0.8.4", system ? builtins.currentSystem }:
+  build = { version ? "0.9.3", system ? builtins.currentSystem }:
+    let
+      dfinitySdk = pkgs.dfinity-sdk {
+        acceptLicenseAgreement = true;
+        sdkSystem = system;
+      };
+    in
+      pkgs.runCommand "ci" {
+        nativeBuildInputs = [
+          pkgs.jq
+        ];
+        buildInputs = [
+          dfinitySdk."${version}"
+          pkgs.nodejs-12_x
+        ];
+      } ''
+        trap "dfx stop" EXIT
+        jq '.dfx = "${version}"' ${./dfx.json} > dfx.json
+        dfx start --background --host 127.0.0.1:0
+        WEBSERVER_PORT=$(cat .dfx/webserver-port)
+        # dfx deploy --network "http://127.0.0.1:$WEBSERVER_PORT"
+        dfx stop
+        touch $out
+      ''
+    ;
+
+  shell = { version ? "0.9.3", system ? builtins.currentSystem }:
     let
       dfinitySdk = pkgs.dfinity-sdk {
         acceptLicenseAgreement = true;
@@ -18,5 +44,5 @@ let
       };
 in
   {
-    inherit shell;
+    inherit build shell;
   }
diff --git a/examples/ci/dfx.json b/examples/ci/dfx.json
new file mode 100644
index 0000000..923d9aa
--- /dev/null
+++ b/examples/ci/dfx.json
@@ -0,0 +1,10 @@
+{
+  "version": 1,
+  "dfx": "0.10.101",
+  "networks": {
+    "local": {
+      "bind": "127.0.0.1:8000",
+      "type": "ephemeral"
+    }
+  }
+}
diff --git a/examples/ci/flake.lock b/examples/ci/flake.lock
new file mode 100644
index 0000000..32a353d
--- /dev/null
+++ b/examples/ci/flake.lock
@@ -0,0 +1,56 @@
+{
+  "nodes": {
+    "dfinity-sdk": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-g+OEfBp2xVqFqBJt2W6I4pfyH49dHKxhP1tYLTGW2os=",
+        "path": "/nix/store/4bjs4nr86p9fj6mnv9kxnbyz8v6ivfzd-source",
+        "type": "path"
+      },
+      "original": {
+        "path": "/nix/store/4bjs4nr86p9fj6mnv9kxnbyz8v6ivfzd-source",
+        "type": "path"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1638239011,
+        "narHash": "sha256-AjhmbT4UBlJWqxY0ea8a6GU2C2HdKUREkG43oRr3TZg=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "a7ecde854aee5c4c7cd6177f54a99d2c1ff28a31",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "21.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "dfinity-sdk": "dfinity-sdk",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/examples/ci/flake.nix b/examples/ci/flake.nix
new file mode 100644
index 0000000..cf97672
--- /dev/null
+++ b/examples/ci/flake.nix
@@ -0,0 +1,70 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/21.11";
+    flake-utils.url = "github:numtide/flake-utils";
+    dfinity-sdk = {
+      # url = "github:paulyoung/nixpkgs-dfinity-sdk";
+      url = "../../";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, dfinity-sdk }:
+    flake-utils.lib.eachSystem ["aarch64-darwin" "x86_64-darwin" "x86_64-linux"] (
+      system: let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [
+            (final: prev: (import dfinity-sdk) final prev)
+          ];
+        };
+
+        dfinitySdk = (pkgs.dfinity-sdk {
+          acceptLicenseAgreement = true;
+          sdkSystem = system;
+        });
+
+        mkPackage = version:
+          pkgs.runCommand "ci" {
+            nativeBuildInputs = [
+              pkgs.jq
+            ];
+            buildInputs = [
+              dfinitySdk."${version}"
+            ];
+          } ''
+            trap "dfx stop" EXIT
+            jq '.dfx = "${version}"' ${./dfx.json} > dfx.json
+            dfx start --background --host 127.0.0.1:0
+            WEBSERVER_PORT=$(cat .dfx/webserver-port)
+            # dfx deploy --network "http://127.0.0.1:$WEBSERVER_PORT"
+            dfx stop
+            touch $out
+          ''
+        ;
+
+        drvs =
+          pkgs.lib.attrsets.filterAttrs
+            (_name: value: pkgs.lib.attrsets.isDerivation value)
+            dfinitySdk
+        ;
+      in
+        rec {
+          # `nix build`
+          defaultPackage = packages."0.10.101";
+
+          packages =
+            pkgs.lib.attrsets.mapAttrs
+              (name: _value: mkPackage name)
+              drvs
+          ;
+
+          # `nix develop`
+          devShell = pkgs.mkShell {
+            buildInputs = [
+              dfinitySdk.latest
+            ];
+          };
+        }
+    );
+}
diff --git a/examples/flake/dfx.json b/examples/flake/dfx.json
index 6856da2..8240a9e 100644
--- a/examples/flake/dfx.json
+++ b/examples/flake/dfx.json
@@ -1,6 +1,23 @@
 {
   "version": 1,
-  "dfx": "0.8.4",
+  "dfx": "0.11.2",
+  "canisters": {
+    "internet_identity": {
+      "type": "custom",
+      "wasm": "result-remote/internet_identity/internet_identity_dev.wasm",
+      "candid": "result-remote/internet_identity/internet_identity.did",
+      "remote": {
+        "id": {
+          "ic": "rdmx6-jaaaa-aaaaa-aaadq-cai"
+        }
+      }
+    }
+  },
+  "ic": {
+    "providers": [
+      "https://ic0.app"
+    ]
+  },
   "networks": {
     "local": {
       "bind": "127.0.0.1:8000",
diff --git a/examples/flake/flake.lock b/examples/flake/flake.lock
index 8c5bc27..6671b8a 100644
--- a/examples/flake/flake.lock
+++ b/examples/flake/flake.lock
@@ -3,13 +3,17 @@
     "dfinity-sdk": {
       "flake": false,
       "locked": {
-        "narHash": "sha256-zyABLkjsQG10ggHjgsLFczjM2tAMOrB7OsPRhUlCJlw=",
-        "path": "/nix/store/982fn4524aqcwhd55jw0yhqv6nk3ssa1-source",
-        "type": "path"
+        "lastModified": 1648278992,
+        "narHash": "sha256-2dCMlzjebld3yrNXJ5uCN67/eOKSHt2OcUk1GA9jp5o=",
+        "owner": "paulyoung",
+        "repo": "nixpkgs-dfinity-sdk",
+        "rev": "8ea6347d42e4173767acb74e2c0ff45c4585616a",
+        "type": "github"
       },
       "original": {
-        "path": "/nix/store/982fn4524aqcwhd55jw0yhqv6nk3ssa1-source",
-        "type": "path"
+        "owner": "paulyoung",
+        "repo": "nixpkgs-dfinity-sdk",
+        "type": "github"
       }
     },
     "flake-utils": {
diff --git a/examples/flake/flake.nix b/examples/flake/flake.nix
index 815ce5c..7d683a4 100644
--- a/examples/flake/flake.nix
+++ b/examples/flake/flake.nix
@@ -2,15 +2,17 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/21.11";
     flake-utils.url = "github:numtide/flake-utils";
+
     dfinity-sdk = {
-      # url = "github:paulyoung/nixpkgs-dfinity-sdk";
-      url = "../../";
+      # url = "github:paulyoung/nixpkgs-dfinity-sdk?rev=28bb54dc1912cd723dc15f427b67c5309cfe851e";
+      url = "github:paulyoung/nixpkgs-dfinity-sdk";
       flake = false;
     };
+
   };
 
   outputs = { self, nixpkgs, flake-utils, dfinity-sdk }:
-    flake-utils.lib.eachDefaultSystem (
+    flake-utils.lib.eachSystem ["aarch64-darwin" "x86_64-darwin" "x86_64-linux"] (
       system: let
         pkgs = import nixpkgs {
           inherit system;
@@ -22,7 +24,19 @@
         dfinitySdk = (pkgs.dfinity-sdk {
           acceptLicenseAgreement = true;
           sdkSystem = system;
-        })."0.8.4";
+        # })."0.9.3";
+        }).makeVersion {
+          systems = {
+            "x86_64-darwin" = {
+              sha256 = "sha256-0dmrknkFJ5UrGYqL2aH6xuUPJFlY6ae+4faHeF5rJBw=";
+            };
+            "x86_64-linux" = {
+              sha256 = pkgs.lib.fakeSha256;
+            };
+          };
+          version = "0.11.2";
+        };
+
       in
         {
           # `nix build`
@@ -31,8 +45,12 @@
               dfinitySdk
             ];
           } ''
+            HOME=$TMP
+            trap "dfx stop" EXIT
             cp ${./dfx.json} dfx.json
-            dfx start --background
+            dfx start --background --host 127.0.0.1:0
+            WEBSERVER_PORT=$(cat .dfx/webserver-port)
+            # dfx deploy --network "http://127.0.0.1:$WEBSERVER_PORT"
             dfx stop
             touch $out
           '';