Koenig

Ghost editor, based on the Lexical framework.

Get started

This is a mono repository, managed with lerna.

To get started in this repo:

1. git clone this repo & cd into it as usual
2. run yarn setup from the top-level:
   • installs all external dependencies
   • links all internal dependencies
   • runs an initial build of all projects

To add a new package to the repo:

• install Slimer
• run slimer new <package name>

Development

yarn dev runs the koenig-lexical package in development mode. Please refer to its README for more information.

Test

• yarn lint run just eslint
• yarn test run lint and tests

Deployment

Ghost core team only.

Prerequisites

Create an .env file in packages/koenig-lexical, with environment variables for Sentry, so that we can track errors in the editor. There is a copy of this file in 1password.

VITE_SENTRY_ORG=""
VITE_SENTRY_PROJECT=""
VITE_SENTRY_AUTH_TOKEN=""

Deploy a new version

1. run yarn ship in the top-level Koenig directory to publish to npm
2. bump the Koenig dependencies in Ghost. Either:
   • wait for Renovate to create a bump PR (example) and merge it (recommended option)
   • or, do it manually, by adding the new Koenig package versions to the package.json files in Ghost/core and Ghost/admin

Copyright & License

Copyright (c) 2013-2025 Ghost Foundation - Released under the MIT license.