diff --git a/tools/cli/src/bin/dev.ts b/tools/cli/src/bin/dev.ts
index 81c2158d4..6365701f5 100644
--- a/tools/cli/src/bin/dev.ts
+++ b/tools/cli/src/bin/dev.ts
@@ -18,7 +18,6 @@ const flags: BuildFlags = {
   static: false,
   channel: 'canary',
   coverage: process.env.COVERAGE === 'true',
-  localBlockSuite: undefined,
 };
 
 const files = ['.env', '.env.local'];
@@ -34,7 +33,7 @@ for (const file of files) {
 }
 
 const buildFlags = process.argv.includes('--static')
-  ? { ...flags, debugBlockSuite: false, static: true }
+  ? { ...flags, static: true }
   : ((await p.group(
       {
         distribution: () =>
@@ -90,11 +89,6 @@ const buildFlags = process.argv.includes('--static')
             message: 'Enable coverage',
             initialValue: process.env.COVERAGE === 'true',
           }),
-        debugBlockSuite: () =>
-          p.confirm({
-            message: 'Debug blocksuite locally?',
-            initialValue: false,
-          }),
       },
       {
         onCancel: () => {
@@ -102,7 +96,7 @@ const buildFlags = process.argv.includes('--static')
           process.exit(0);
         },
       }
-    )) as BuildFlags & { debugBlockSuite: boolean });
+    )) as BuildFlags);
 
 flags.distribution = buildFlags.distribution;
 flags.mode = buildFlags.mode;
@@ -122,27 +116,6 @@ if (flags.distribution === 'desktop') {
   };
 }
 
-if (buildFlags.debugBlockSuite) {
-  const { config } = await import('dotenv');
-  const envLocal = config({
-    path: join(cwd, '.env.local'),
-  });
-
-  const localBlockSuite = await p.text({
-    message: 'local blocksuite PATH',
-    initialValue: envLocal.error
-      ? undefined
-      : envLocal.parsed?.LOCAL_BLOCK_SUITE,
-  });
-  if (typeof localBlockSuite !== 'string') {
-    throw new Error('local blocksuite PATH is required');
-  }
-  if (!existsSync(localBlockSuite)) {
-    throw new Error(`local blocksuite not found: ${localBlockSuite}`);
-  }
-  flags.localBlockSuite = localBlockSuite;
-}
-
 console.info(flags);
 
 if (!flags.static) {
diff --git a/tools/cli/src/webpack/config.ts b/tools/cli/src/webpack/config.ts
index f0cb54c29..1df716829 100644
--- a/tools/cli/src/webpack/config.ts
+++ b/tools/cli/src/webpack/config.ts
@@ -91,7 +91,6 @@ export const createConfiguration: (
   buildFlags: BuildFlags,
   buildConfig: BUILD_CONFIG_TYPE
 ) => webpack.Configuration = (cwd, buildFlags, buildConfig) => {
-  const blocksuiteBaseDir = buildFlags.localBlockSuite;
   const config = {
     name: 'affine',
     // to set a correct base path for the source map
@@ -146,81 +145,9 @@ export const createConfiguration: (
         '.mjs': ['.mjs', '.mts'],
       },
       extensions: ['.js', '.ts', '.tsx'],
-      fallback:
-        blocksuiteBaseDir === undefined
-          ? undefined
-          : {
-              events: false,
-            },
       alias: {
         yjs: join(workspaceRoot, 'node_modules', 'yjs'),
         lit: join(workspaceRoot, 'node_modules', 'lit'),
-        '@blocksuite/affine/block-std': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'framework', 'block-std', 'src')
-          : join(
-              workspaceRoot,
-              'node_modules',
-              '@blocksuite',
-              'block-std',
-              'dist'
-            ),
-        '@blocksuite/affine/blocks': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'blocks', 'src')
-          : join(
-              workspaceRoot,
-              'node_modules',
-              '@blocksuite',
-              'blocks',
-              'dist'
-            ),
-        '@blocksuite/affine/presets': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'presets', 'src')
-          : join(
-              workspaceRoot,
-              'node_modules',
-              '@blocksuite',
-              'presets',
-              'dist'
-            ),
-        '@blocksuite/affine/global': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'framework', 'global', 'src')
-          : join(
-              workspaceRoot,
-              'node_modules',
-              '@blocksuite',
-              'global',
-              'dist'
-            ),
-        '@blocksuite/affine/store/providers/broadcast-channel':
-          blocksuiteBaseDir
-            ? join(
-                blocksuiteBaseDir,
-                'packages',
-                'framework',
-                'store',
-                'src/providers/broadcast-channel'
-              )
-            : join(
-                workspaceRoot,
-                'node_modules',
-                '@blocksuite',
-                'store',
-                'dist',
-                'providers',
-                'broadcast-channel.js'
-              ),
-        '@blocksuite/affine/store': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'framework', 'store', 'src')
-          : join(workspaceRoot, 'node_modules', '@blocksuite', 'store', 'dist'),
-        '@blocksuite/inline': blocksuiteBaseDir
-          ? join(blocksuiteBaseDir, 'packages', 'framework', 'inline', 'src')
-          : join(
-              workspaceRoot,
-              'node_modules',
-              '@blocksuite',
-              'inline',
-              'dist'
-            ),
       },
     },