webhaak webhook service
For example GitLab and GitHub support webhooks on certain triggers (like updates to files in a repository). These triggers can be used to call such a webhook url on webhaak and have it - well - do stuff. This can really be anything, but think for example updating a repository (to reflect the changes that were just pushed), and running an update script to regenerate a website (like with paragoo).
code Clone the webhaak repository at Github.