diff --git a/packages/opencode/src/lsp/server.ts b/packages/opencode/src/lsp/server.ts
index ba51ba663a3..f56f1b1947b 100644
--- a/packages/opencode/src/lsp/server.ts
+++ b/packages/opencode/src/lsp/server.ts
@@ -196,13 +196,14 @@ export namespace LSPServer {
         }
         await fs.rename(extractedPath, finalPath)
 
-        await $`npm install`.cwd(finalPath).quiet()
-        await $`npm run compile`.cwd(finalPath).quiet()
+        const npmCmd = process.platform === "win32" ? "npm.cmd" : "npm"
+        await $`${npmCmd} install`.cwd(finalPath).quiet()
+        await $`${npmCmd} run compile`.cwd(finalPath).quiet()
 
         log.info("installed VS Code ESLint server", { serverPath })
       }
 
-      const proc = spawn(BunProc.which(), ["--max-old-space-size=8192", serverPath, "--stdio"], {
+      const proc = spawn(BunProc.which(), [serverPath, "--stdio"], {
         cwd: root,
         env: {
           ...process.env,