# Community

> Lettern is open source and built on GitHub. Report a bug, send a fix, write a plugin or show what you made.

## Built in the open.

Bring a bug, a fix or a plugin.

[Open GitHub](https://github.com/letterncms)

[Report a bug](https://github.com/letterncms/cms/issues)

## Fix something

Clone the repository you want to change. You need PHP and Composer. Open an issue before starting on something large.

Contributing guide

```bash
git clone https://github.com/letterncms/cms
cd cms
composer install
composer test
```

## Write a plugin

Plain PHP and React, using the same abilities and blocks as Lettern’s own plugins.

Your first plugin

```bash
plugins/reading-time/
  composer.json
  src/ReadingTimePlugin.php
  admin/src/index.tsx
```

## Publish a plugin

The store is open to authors by invitation. Every site running Lettern installs your plugin from its admin, for free.

Ask for an invitation

Every version

Signed

To install

Free

## Show what you built

We’d like to feature real sites here, with your permission.

Send us your site

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Source: https://lettern.org/community · Updated 2026-10-30