You can also set up Gallery to build from a Git trigger. First, make sure all the repositories you wish to use as a trigger are added to the set of build commands on your template. Then, go to the "Triggers" tab, and add your trigger. The types of triggers are simple, you can either build new environments on opened Pull Requests (or Gitlab Merge Requests), on Pull Requests that are labelled with gallery-build or on pushes that are tagged. Gallery will re-run deployment functions when the associated Pull Request is updated (with new commits), but will not re-create the infrastructure, in order to save time.