Consider making Goryon available on F-Droid
@prologic looked into this some time ago, and he was dissatisfied with their tooling and broader "ecosystem". If the standard F-Droid repository won't work, maybe it would be worth running a custom repository for Goryon.
Users would add the repository in F-Droid settings and they could install and update the app from F-Droid.
Setup doesn't look too terribly difficult. See this documentation page:
Deleting a branch is permanent. It CANNOT be undone. Continue?