# Kimai documentation Welcome to the official Kimai v2 documentation. - [Kimai configurations](configurations.md) - the Kimai core configurations, which can only be set in configuration files - [Developer docu](developers.md) - information for developer who would like to extend Kimai - [User and Security](users.md) - everything related to authentication, security, users, roles ... We know there is a lot missing right now and would appreciate [any help](https://github.com/kevinpapst/kimai2/pulls) in writing. If you need information which is not available right now, [ask us](https://github.com/kevinpapst/kimai2/issues) and we try to add it as soon as possible.