diff --git a/motoko/random_maze/package-lock.json b/motoko/random_maze/package-lock.json
index 4ca03e56b..52130907c 100644
--- a/motoko/random_maze/package-lock.json
+++ b/motoko/random_maze/package-lock.json
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+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.7.1.tgz",
+      "integrity": "sha512-B8XBPsn4vT/KJAGqDzbwztd+6Yte3P4V7iafm24bxgDe/mlRuK6xmWPuCNrKt2vDafZ8MfJLlchDG/vYafQEjQ==",
+      "dev": true
+    },
     "@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -5794,30 +5665,6 @@
         "fastq": "^1.6.0"
       }
     },
-    "@tsconfig/node10": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.9.tgz",
-      "integrity": "sha512-jNsYVVxU8v5g43Erja32laIDHXeoNvFEpX33OK4d6hljo3jDhCBDhx5dhCCTMWUojscpAagGiRkBKxpdl9fxqA==",
-      "dev": true
-    },
-    "@tsconfig/node12": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.11.tgz",
-      "integrity": "sha512-cqefuRsh12pWyGsIoBKJA9luFu3mRxCA+ORZvA4ktLSzIuCUtWVxGIuXigEwO5/ywWFMZ2QEGKWvkZG1zDMTag==",
-      "dev": true
-    },
-    "@tsconfig/node14": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@tsconfig/node14/-/node14-1.0.3.tgz",
-      "integrity": "sha512-ysT8mhdixWK6Hw3i1V2AeRqZ5WfXg1G43mqoYlM2nc6388Fq5jcXyr5mRsqViLx/GJYdoL0bfXD8nmF+Zn/Iow==",
-      "dev": true
-    },
-    "@tsconfig/node16": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@tsconfig/node16/-/node16-1.0.3.tgz",
-      "integrity": "sha512-yOlFc+7UtL/89t2ZhjPvvB/DeAr3r+Dq58IgzsFkOAvVC6NMJXmCGjbptdXdR9qsX7pKcTL+s87FtYREi2dEEQ==",
-      "dev": true
-    },
     "@types/body-parser": {
       "version": "1.19.2",
       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.2.tgz",
@@ -6197,12 +6044,6 @@
       "dev": true,
       "requires": {}
     },
-    "acorn-walk": {
-      "version": "8.2.0",
-      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz",
-      "integrity": "sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==",
-      "dev": true
-    },
     "aggregate-error": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.1.0.tgz",
@@ -6298,12 +6139,6 @@
         "picomatch": "^2.0.4"
       }
     },
-    "arg": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz",
-      "integrity": "sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==",
-      "dev": true
-    },
     "array-filter": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-1.0.0.tgz",
@@ -6761,12 +6596,6 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
-    "create-require": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
-      "integrity": "sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==",
-      "dev": true
-    },
     "cross-spawn": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@@ -6917,12 +6746,6 @@
       "integrity": "sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g==",
       "dev": true
     },
-    "diff": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
-      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
-      "dev": true
-    },
     "dir-glob": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
@@ -8044,12 +7867,6 @@
         "supports-color": "^7.0.0"
       }
     },
-    "js-sha256": {
-      "version": "0.9.0",
-      "resolved": "https://registry.npmjs.org/js-sha256/-/js-sha256-0.9.0.tgz",
-      "integrity": "sha512-sga3MHh9sgQN2+pJ9VYZ+1LPwXOxuBJBA5nrR5/ofPfuiJBE2hnjsaN8se8JznOmGLN2p49Pe5U/ttafcs/apA==",
-      "dev": true
-    },
     "js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -8129,12 +7946,6 @@
         "yallist": "^4.0.0"
       }
     },
-    "make-error": {
-      "version": "1.3.6",
-      "resolved": "https://registry.npmjs.org/make-error/-/make-error-1.3.6.tgz",
-      "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
-      "dev": true
-    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -9355,27 +9166,6 @@
         "semver": "^7.3.4"
       }
     },
-    "ts-node": {
-      "version": "10.9.1",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.9.1.tgz",
-      "integrity": "sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==",
-      "dev": true,
-      "requires": {
-        "@cspotcode/source-map-support": "^0.8.0",
-        "@tsconfig/node10": "^1.0.7",
-        "@tsconfig/node12": "^1.0.7",
-        "@tsconfig/node14": "^1.0.0",
-        "@tsconfig/node16": "^1.0.2",
-        "acorn": "^8.4.1",
-        "acorn-walk": "^8.1.1",
-        "arg": "^4.1.0",
-        "create-require": "^1.1.0",
-        "diff": "^4.0.1",
-        "make-error": "^1.1.1",
-        "v8-compile-cache-lib": "^3.0.1",
-        "yn": "3.1.1"
-      }
-    },
     "tslib": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.2.0.tgz",
@@ -9470,12 +9260,6 @@
       "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
       "dev": true
     },
-    "v8-compile-cache-lib": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
-      "integrity": "sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==",
-      "dev": true
-    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -9879,12 +9663,6 @@
       "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
       "dev": true
     },
-    "yn": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
-      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
-      "dev": true
-    },
     "yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
diff --git a/motoko/random_maze/src/declarations/random_maze/index.js b/motoko/random_maze/src/declarations/random_maze/index.js
index c323d4599..4d3b116e7 100644
--- a/motoko/random_maze/src/declarations/random_maze/index.js
+++ b/motoko/random_maze/src/declarations/random_maze/index.js
@@ -10,8 +10,7 @@ export { idlFactory } from "./random_maze.did.js";
  * beginning in dfx 0.15.0
  */
 export const canisterId =
-  process.env.CANISTER_ID_RANDOM_MAZE ||
-  process.env.RANDOM_MAZE_CANISTER_ID;
+  process.env.CANISTER_ID_RANDOM_MAZE;
 
 export const createActor = (canisterId, options = {}) => {
   const agent = options.agent || new HttpAgent({ ...options.agentOptions });
@@ -40,4 +39,4 @@ export const createActor = (canisterId, options = {}) => {
   });
 };
 
-export const random_maze = createActor(canisterId);
+export const random_maze = canisterId ? createActor(canisterId) : undefined;
diff --git a/motoko/random_maze/src/declarations/random_maze/random_maze.did b/motoko/random_maze/src/declarations/random_maze/random_maze.did
index e1eb224cf..7110a2e22 100644
--- a/motoko/random_maze/src/declarations/random_maze/random_maze.did
+++ b/motoko/random_maze/src/declarations/random_maze/random_maze.did
@@ -1,3 +1,8 @@
 service : {
+  /// Given n, returns a maze of n * n cells,
+  /// separated by n + 1 partial walls.
+  /// 
+  /// https://en.wikipedia.org/wiki/Maze_generation_algorithm
+  /// https://en.wikipedia.org/wiki/Maze_generation_algorithm#Iterative_implementation
   generate: (nat) -> (text);
 }
diff --git a/motoko/random_maze/src/declarations/random_maze/random_maze.did.d.ts b/motoko/random_maze/src/declarations/random_maze/random_maze.did.d.ts
index 71a4bb6b5..d6e19ae9e 100644
--- a/motoko/random_maze/src/declarations/random_maze/random_maze.did.d.ts
+++ b/motoko/random_maze/src/declarations/random_maze/random_maze.did.d.ts
@@ -1,4 +1,7 @@
 import type { Principal } from '@dfinity/principal';
 import type { ActorMethod } from '@dfinity/agent';
+import type { IDL } from '@dfinity/candid';
 
 export interface _SERVICE { 'generate' : ActorMethod<[bigint], string> }
+export declare const idlFactory: IDL.InterfaceFactory;
+export declare const init: (args: { IDL: typeof IDL }) => IDL.Type[];
diff --git a/motoko/random_maze/webpack.config.js b/motoko/random_maze/webpack.config.js
index 74e7e79c7..d9f3b9f9c 100644
--- a/motoko/random_maze/webpack.config.js
+++ b/motoko/random_maze/webpack.config.js
@@ -25,7 +25,7 @@ function initCanisterIds() {
   canisters = network === "local" ? localCanisters : prodCanisters;
 
   for (const canister in canisters) {
-    process.env[canister.toUpperCase() + "_CANISTER_ID"] =
+    process.env["CANISTER_ID_" + canister.toUpperCase()] =
       canisters[canister][network];
   }
 }
@@ -39,6 +39,7 @@ const asset_entry = path.join(
   "index.html"
 );
 
+
 module.exports = {
   target: "web",
   mode: isDevelopment ? "development" : "production",
@@ -85,18 +86,18 @@ module.exports = {
     }),
     new webpack.EnvironmentPlugin({
       NODE_ENV: 'development',
-      RANDOM_MAZE_CANISTER_ID: canisters["random_maze"]
+      ...process.env
     }),
     new webpack.ProvidePlugin({
       Buffer: [require.resolve("buffer/"), "Buffer"],
       process: require.resolve("process/browser"),
     }),
   ],
-  // proxy /api to port 8000 during development
+  // proxy /api to the local replica port 4943 during development
   devServer: {
     proxy: {
       "/api": {
-        target: "http://localhost:8000",
+        target: "http://localhost:4943",
         changeOrigin: true,
         pathRewrite: {
           "^/api": "/api",
@@ -104,7 +105,10 @@ module.exports = {
       },
     },
     hot: true,
-    contentBase: path.resolve(__dirname, "./src/random_maze_assets"),
-    watchContentBase: true
+    static: [
+      path.join(__dirname, "dist", "random_maze_assets"),
+      path.join(__dirname, "src", "random_maze_assets", "assets"),
+    ],
+    liveReload: true
   },
 };