## Problem
Syncing a `twenty-sdk` app against a server (`twenty dev`) **crashes the
server process**. The metadata migration completes, then the server-side
`GqlTypeGenerator` regenerates typed clients via the vendored genql
codegen in `twenty-client-sdk`, which throws and exits node:
```
ConfigError: Couldn't find plugin for AST format "estree".
Plugins must be explicitly added to the standalone bundle.
at .../packages/twenty-client-sdk/dist/generate.cjs
Node.js v24.5.0 ← process exits
```
The CLI sees `ECONNRESET`; the app row still persists because the crash
happens after the metadata commit. Any app sync takes the server down.
## Root cause
The genql codegen formatter
[`prettify.ts`](https://github.com/twentyhq/twenty/blob/main/packages/twenty-client-sdk/src/generate/genql/helpers/prettify.ts)
was vendored (in #21339) targeting **prettier 2.8**: a synchronous
`format()` and `prettier/parser-typescript`, which in 2.8 bundles the
estree printer. `package.json` pins `prettier ^2.8.8`, but the monorepo
actually resolves/bundles **prettier 3.8.3** (`^2.8.8` is silently
unsatisfied — no 2.8.x is nested for this package, and the subpath
imports are bundled from the hoisted 3.8.3). Under prettier 3 the estree
printer must be added explicitly (`prettier/plugins/estree`) and
`format()` is async — so the codegen throws.
`prettier/parser-typescript` / `parser-graphql` don't even exist in
prettier 3 (only `prettier/plugins/*`), so the declared `^2.8.8` was
already inconsistent with what runs.
## Fix
- `prettify`: switch to the prettier-3 entrypoints
`prettier/plugins/{graphql,typescript,estree}`, `await` the async
`format()`, and fall back to the unformatted (still valid) code on any
failure so cosmetic formatting can never crash codegen again.
- `RenderContext.toCode` + `clientTasks`: propagate the now-async
`prettify` (await the four `toCode` call sites).
- Bump the declared `prettier` dependency `^2.8.8 → ^3.8.3` to match
what is actually used (only consumer; minimal lockfile diff).
## Verification (local, source server on :3000)
- `twenty dev --once` now completes: `Registering application → Syncing
manifest → Generating API client → ✓ Synced` with the **server staying
up**.
- The app integration test passes (full re-sync of 6 metadata objects +
`MetadataApiClient`/`CoreApiClient` CRUD through the generated genql
runtime).
- `nx build twenty-client-sdk` (incl. `tsgo` typecheck) passes.
Release note: this is a v2.11 blocker — without it, installing/syncing
any app crashes the server.
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
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Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the User Guide for product walkthroughs, or the
Documentation for developer reference.
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Stack
TypeScript
Nx
NestJS, with BullMQ,
PostgreSQL,
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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