32e0425a65
- Add product tour video - Add new graphic design assets --------- Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com> Co-authored-by: Etienne <etiennejouan@users.noreply.github.com>
49 lines
2.7 KiB
Plaintext
49 lines
2.7 KiB
Plaintext
---
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title: Apps
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icon: "cube"
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description: Extend Twenty with code — custom objects, server-side logic, UI components, and AI agents, all as TypeScript packages.
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---
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Most CRMs give you a config panel. Twenty gives you a platform. Apps are how developers extend Twenty beyond what the UI offers — defining data models, server-side logic, UI components, and AI capabilities as code, then deploying them to one or more workspaces.
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## Why apps exist
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Workflows cover no-code automation. But some things need code: a custom pricing engine, a proprietary enrichment pipeline, a compliance check that runs on every record update, a custom UI panel that pulls data from an internal tool.
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Apps let you build these as first-class extensions — not brittle scripts talking to an API from outside, but code that runs on the platform with full access to the type system, permission model, and UI.
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## What an app can define
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An app is a TypeScript package that declares **entities** using the `twenty-sdk`:
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| Entity | What it does |
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|--------|-------------|
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| **Objects & Fields** | New data tables and fields on existing objects — same treatment as built-in ones |
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| **Logic Functions** | Server-side TypeScript triggered by HTTP routes, cron schedules, or database events |
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| **Front Components** | Sandboxed React components that render inside Twenty's UI (side panel, widgets, command menu) |
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| **Skills & Agents** | AI capabilities — reusable instructions and autonomous assistants |
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| **Views & Navigation** | Pre-configured list views and sidebar menu items |
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Everything is detected via AST analysis at build time — no config files, no registration boilerplate. Put a `export default defineObject(...)` in any `.ts` file and the SDK picks it up.
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## How they run
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- **Logic functions** execute in isolated Node.js processes, sandboxed from the host. They access data through a typed API client scoped to the app's role permissions.
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- **Front components** run in Web Workers using Remote DOM — sandboxed from the main page but rendering native DOM elements (not iframes).
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- **Permissions** are enforced at the API level. An app only sees what its role allows.
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## The developer experience
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```bash
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npx create-twenty-app@latest my-app
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cd my-app
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yarn twenty dev
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```
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`yarn twenty dev` watches your source files, rebuilds on change, and live-syncs to a local Twenty instance. The typed API client regenerates automatically when the schema changes. When you're ready, `yarn twenty deploy` pushes to production. Apps can also be published to npm and listed in the Twenty marketplace.
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<Card title="Build your first app" icon="arrow-right" href="/developers/extend/apps/getting-started">
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Full walkthrough — scaffold, develop, deploy.
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</Card>
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