Landkid

Landkid is a self-hosted CI queue manager that keeps master green by serializing merges and ensuring all branch builds are rebased against latest master before merging. Version 0.2.10 is pre-1.0 and appears sporadically maintained. It integrates with Bitbucket and Bitbucket Pipelines, with no official support for GitHub or other CIs. Key differentiator: it provides a queue system to avoid simultaneous merge conflicts and regressions, unlike basic CI merge checks.