To always trigger .AppImage making in your repo at each commit you need to tweak the rules: of the dist-appimage-weekly job in yml file to be siimilar to our gimp-debian-x64 job.
If I set a flag in the .gitlab-ci.yml… GIMP_CI_APPIMAGE: “1”
That’s not how GitLab use these variables. To create an .AppImage occasionally, you need to go to this page: Sign in · GitLab