To all those wanting to have some #FOSS app listed in my repo (e.g. because they can't have it included with the official F-Droid repo for some reason):
My Updater now also can fetch APKs from GitLab tags.
Description on the GitLab repo for my repo (oops) updated accordingly: https://gitlab.com/IzzyOnDroid/repo (file your requests in its issue tracker, please).
PS: The YalpStore fork AuroraStore (https://gitlab.com/AuroraOSS/AuroraStore) is the first app making use of that. Find it in my repo here: https://apt.izzysoft.de/fdroid/index/apk/com.dragons.aurora