## Summary - **npm + tarball app distribution**: Apps can be installed from the npm registry (public or private) or uploaded as `.tar.gz` tarballs, with `AppRegistrationSourceType` tracking the origin - **Upgrade mechanism**: `AppUpgradeService` checks for newer versions, supports rollback for npm-sourced apps, and a cron job runs every 6 hours to update `latestAvailableVersion` on registrations - **Security hardening**: Tarball extraction uses path traversal protection, and `enableScripts: false` in `.yarnrc.yml` disables all lifecycle scripts during `yarn install` to prevent RCE - **Frontend**: "Install from npm" and "Upload tarball" modals, upgrade button on app detail page, blue "Update" badge on installed apps table when a newer version is available - **Marketplace catalog sync**: Hourly cron job syncs a hardcoded catalog index into `ApplicationRegistration` entities - **Integration tests**: Coverage for install, upgrade, tarball upload, and catalog sync flows ## Backend changes | Area | Files | |------|-------| | Entity & migration | `ApplicationRegistrationEntity` (sourceType, sourcePackage, latestAvailableVersion), `ApplicationEntity` (applicationRegistrationId), migration | | Services | `AppPackageResolverService`, `ApplicationInstallService`, `AppUpgradeService`, `MarketplaceCatalogSyncService` | | Cron jobs | `MarketplaceCatalogSyncCronJob` (hourly), `AppVersionCheckCronJob` (every 6h) | | REST endpoint | `AppRegistrationUploadController` — tarball upload with secure extraction | | Resolver | `MarketplaceResolver` — simplified `installMarketplaceApp` (removed redundant `sourcePackage` arg) | | Security | `.yarnrc.yml` — `enableScripts: false` to block postinstall RCE | ## Frontend changes | Area | Files | |------|-------| | Modals | `SettingsInstallNpmAppModal`, `SettingsUploadTarballModal`, `SettingsAppModalLayout` | | Hooks | `useUploadAppTarball`, `useInstallMarketplaceApp` (cleaned up) | | Upgrade UI | `SettingsApplicationVersionContainer`, `SettingsApplicationDetailAboutTab` | | Badge | `SettingsApplicationTableRow` — blue "Update" tag, `SettingsApplicationsInstalledTab` — fetches registrations for version comparison | | Styling | Migrated to Linaria (matching main) | ## Test plan - [ ] Install an app from npm via the "Install from npm" modal - [ ] Upload a `.tar.gz` tarball via the "Upload tarball" modal - [ ] Verify upgrade badge appears when `latestAvailableVersion > version` - [ ] Verify upgrade flow from app detail page - [ ] Run integration tests: `app-distribution.integration-spec.ts`, `marketplace-catalog-sync.integration-spec.ts` - [ ] Verify `enableScripts: false` blocks postinstall scripts during yarn install Made with [Cursor](https://cursor.com)
The #1 Open-Source CRM
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Installation
See: 🚀 Self-hosting 🖥️ Local Setup
Why Twenty
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 Jotai, Linaria 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
- Star the repo
- Subscribe to releases (watch -> custom -> releases)
- Follow us on Twitter or LinkedIn
- Join our Discord
- Improve translations on Crowdin
- Contributions are, of course, most welcome!




