- [PHP Censor](https://github.com/php-censor/php-censor) - Open source self-hosted continuous integration server for PHP projects. `BSD-2-Clause``PHP`
- [PHPCI](https://www.phptesting.org/) - Free and open source continuous integration specifically designed for PHP. ([Source Code](https://github.com/block8/phpci)) `BSD-2-Clause``PHP`
- [Semaphore](https://semaphore.io) - The Open Source CI/CD Platform. ([Source Code]([https://github.com/block8/phpci](https://docs.semaphoreci.com/CE/getting-started/install))) `Apache-2.0``Elixir`
- [Semaphore](https://semaphore.io) - The Open Source CI/CD Platform. ([Source Code](https://github.com/semaphoreio/semaphore)) `Apache-2.0``Elixir`
- [Terrateam](https://terrateam.io) - GitOps-first automation platform for Terraform and OpenTofu workflows with support for self-hosted runners. ([Source Code](https://github.com/terrateamio/terrateam)) `MPL-2.0``OCaml/Docker`
- [werf](https://werf.io/) - Open Source CI/CD tool for building Docker images and deploying to Kubernetes via GitOps. ([Source Code](https://github.com/werf/werf)) `Apache-2.0``Go`