Files
twenty/packages/twenty-apps/examples/postcard
martmullandGitHub bddd23fd9c Fix application icons (#20142)
fixes application chip (icon Name) in all setting tables

## After
<img width="1200" height="896" alt="image"
src="https://github.com/user-attachments/assets/bd377f47-1d52-4142-b904-f2ce90c1db78"
/>
<img width="1200" height="917" alt="image"
src="https://github.com/user-attachments/assets/f49cc742-f11e-47e3-86ed-34beffe493c7"
/>
<img width="1234" height="878" alt="image"
src="https://github.com/user-attachments/assets/2ab459de-5f9d-4d39-9490-eec4ed9ee432"
/>
<img width="1239" height="845" alt="image"
src="https://github.com/user-attachments/assets/3c1bf258-285a-47b9-a60d-05ba1564334d"
/>
<img width="1183" height="907" alt="image"
src="https://github.com/user-attachments/assets/715b2470-2d88-48e3-88ac-d3daf3451717"
/>
<img width="1300" height="912" alt="image"
src="https://github.com/user-attachments/assets/d7c829fa-bf1d-4f19-82de-a8bf29e22bfa"
/>
2026-04-30 09:32:04 +00:00
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2026-04-30 09:32:04 +00:00

Postcard App — Twenty App Example

A rich example app showcasing all Twenty app entity types. Use this as a reference when building your own apps.

What's included

This app demonstrates every entity type available in the Twenty SDK:

Entity Files What it shows
Application src/application.config.ts App metadata, application variables, server variables
Objects src/objects/ Custom objects with inline fields, junction tables
Fields src/fields/ Standalone fields, relations (ONE_TO_MANY, MANY_TO_ONE), extending standard objects
Logic Functions src/logic-functions/ HTTP routes, database event triggers, cron schedules, tool functions, install hooks
Front Components src/components/ React components rendered inside Twenty's UI
Roles src/roles/ Permission roles with object and field-level access control
Views src/views/ Saved table views with column configuration
Navigation src/navigation-menu-items/ Sidebar links targeting views
Skills src/skills/ AI skill providing context to agents
Agents src/agents/ AI agent with a system prompt
Page Layouts src/page-layouts/ Custom record page with a front component widget

Getting started

# From this directory
yarn install
yarn twenty dev

Or use it as a template via create-twenty-app:

npx create-twenty-app@latest my-app --example postcard

Learn more