## Context WasRemovedInUpgrade type brand was introduced in https://github.com/twentyhq/twenty/pull/21228/changes#diff-1b6d688610669a46b3ee8e3a41b1c7eb0ee03e19146d0d249f95df6e56164a92R15 for the `isCustom` property deprecation. The @WasRemovedInUpgrade decorator and the WasRemovedInUpgrade<T> type are meant to go together: the type brand makes the property optional in every derived flat-entity type, so the column only needs to be declared on the entity itself. RolePermissionFlagEntity.flag had the decorator but was typed as a plain PermissionFlagType, forcing the property to be supplied everywhere. This PR: - Types flag as WasRemovedInUpgrade<PermissionFlagType> (matching the isCustom reference impl on object/field metadata). - Removes the now-redundant flag from the flat-entity construction sites, the create input, and the service call site — leaving it only on the entity. The GraphQL RolePermissionFlagDTO.flag is kept (it's an API field derived from permissionFlag.key, not the removed column). - Fixes a latent brand-leak in the flat-entity config type: toStringify is computed via object-detection, and a branded type reads as an object. This was harmless for boolean but wrongly forced toStringify: true for enum/string columns. Added UnwrapWasRemovedInUpgrade<T> and applied it so the brand is transparent making the pattern work for any type, not just booleans. <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/21785?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
The #1 Open-Source CRM
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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.
Self-hosting
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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