try tsgo

packages/opencode/package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "typecheck": "tsc --noEmit",
+    "typecheck": "tsgo --noEmit",
     "test": "bun test",
     "build": "./script/build.ts",
     "dev": "bun run ./src/index.ts"
@@ -27,6 +27,7 @@
     "@types/turndown": "5.0.5",
     "@types/yargs": "17.0.33",
     "typescript": "catalog:",
+    "@typescript/native-preview": "catalog:",
     "vscode-languageserver-types": "3.17.5",
     "zod-to-json-schema": "3.24.5",
     "@opencode-ai/script": "workspace:*"

packages/opencode/tsconfig.json

@@ -8,7 +8,6 @@
     "types": [],
     "noUncheckedIndexedAccess": false,
     "customConditions": ["browser"],
-    "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"],
       "@tui/*": ["./src/cli/cmd/tui/*"]