Charles Bochet
7332379d26
## Summary https://github.com/user-attachments/assets/1e75cc9d-d9d2-4ef2-99f9-34450f5d8de7 Add background incremental type checking (`tsc --watch`) to the SDK dev mode, so type regressions are caught when the generated API client changes — without requiring a full rebuild of source files. Previously, removing a field from the data model would regenerate the API client, but existing front components/logic functions referencing the removed field wouldn't surface type errors (since their source didn't change, esbuild wouldn't rebuild them). ## What changed - **Background `tsc --watch`**: a long-lived TypeScript watcher runs alongside esbuild watchers, incrementally re-checking all files when the generated client changes. Only logs on state transitions (errors appear / errors clear) to stay quiet. - **Atomic client generation**: API client is now generated into a temp directory and swapped in atomically, avoiding a race condition where `tsc --watch` could see an empty `generated/` directory mid-regeneration. - **Step decoupling**: orchestrator steps no longer receive `uploadFilesStep` directly. Instead, they use callbacks (`onFileBuilt`, `onApiClientGenerated`), and each step manages its own `builtFileInfos` state. - **`apiClientChecksum` omitted from `ApplicationConfig`**: it's a build-time computed value, same as `packageJsonChecksum`. <img width="327" height="177" alt="image" src="https://github.com/user-attachments/assets/02bd25bb-fa41-42b0-8d96-01c51bd4580c" /> <img width="529" height="452" alt="image" src="https://github.com/user-attachments/assets/61f6e968-365b-4a5b-8f2b-a8419d6b1bd3" />
The #1 Open-Source CRM
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Installation
See: 🚀 Self-hosting 🖥️ Local Setup
Does the world need another CRM?
We built Twenty for three reasons:
CRMs are too expensive, and users are trapped. Companies use locked-in customer data to hike prices. It shouldn't be that way.
A fresh start is required to build a better experience. We can learn from past mistakes and craft a cohesive experience inspired by new UX patterns from tools like Notion, Airtable or Linear.
We believe in Open-source and community. Hundreds of developers are already building Twenty together. Once we have plugin capabilities, a whole ecosystem will grow around it.
What You Can Do With Twenty
Please feel free to flag any specific needs you have by creating an issue.
Below are a few features we have implemented to date:
- Personalize layouts with filters, sort, group by, kanban and table views
- Customize your objects and fields
- Create and manage permissions with custom roles
- Automate workflow with triggers and actions
- Emails, calendar events, files, and more
Personalize layouts with filters, sort, group by, kanban and table views
Customize your objects and fields
Create and manage permissions with custom roles
Automate workflow with triggers and actions
Emails, calendar events, files, and more
Stack
- TypeScript
- Nx
- NestJS, with BullMQ, PostgreSQL, Redis
- React, with Recoil, Emotion and Lingui
Thanks
Thanks to these amazing services that we use and recommend for UI testing (Chromatic), code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
Join the Community
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- Contributions are, of course, most welcome!