diff --git a/package.json b/package.json
index 32d3ccbe850..56cc1e0fb59 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "type": "module",
   "packageManager": "bun@1.3.0",
   "scripts": {
-    "dev": "bun run --cwd packages/opencode --conditions=browser src/index.ts",
+    "dev": "bun run --cwd packages/opencode dev",
     "typecheck": "bun turbo typecheck",
     "prepare": "husky",
     "random": "echo 'Random script'"
diff --git a/packages/opencode/package.json b/packages/opencode/package.json
index 91f800ef39e..f1c4d796bd9 100644
--- a/packages/opencode/package.json
+++ b/packages/opencode/package.json
@@ -8,7 +8,7 @@
     "typecheck": "tsgo --noEmit",
     "test": "bun test",
     "build": "./script/build.ts",
-    "dev": "bun run --conditions=browser ./src/index.ts",
+    "dev": "NODE_ENV=development bun run --conditions=browser ./src/index.ts",
     "random": "echo 'Random script updated at $(date)'"
   },
   "bin": {
diff --git a/packages/opencode/src/cli/cmd/tui/thread.ts b/packages/opencode/src/cli/cmd/tui/thread.ts
index 74afba05bf4..19854e7c040 100644
--- a/packages/opencode/src/cli/cmd/tui/thread.ts
+++ b/packages/opencode/src/cli/cmd/tui/thread.ts
@@ -6,6 +6,7 @@ import { upgrade } from "@/cli/upgrade"
 import { Session } from "@/session"
 import { bootstrap } from "@/cli/bootstrap"
 import path from "path"
+import { fileURLToPath } from "url"
 import { UI } from "@/cli/ui"
 
 export const TuiThreadCommand = cmd({
@@ -77,7 +78,11 @@ export const TuiThreadCommand = cmd({
         return undefined
       })()
 
-      const worker = new Worker("./src/cli/cmd/tui/worker.ts")
+      const worker = new Worker(
+        process.env.NODE_ENV === "development"
+          ? path.join(path.dirname(fileURLToPath(import.meta.url)), "worker.ts")
+          : "./src/cli/cmd/tui/worker.ts",
+      )
       worker.onerror = console.error
       const client = Rpc.client<typeof rpc>(worker)
       process.on("uncaughtException", (e) => {