Current problem
The current login option available on https://weblate.fluxer.tools/ is just GitHub. There is no other login method available.
Proposed change
Given the recent push by the Fluxer team to move away from GitHub, I believe it would make sense if you could log into the Weblate account with your own Fluxer account instead of relying on a GitHub account.
For context, here's a direct quote from the post linked above:
It also makes us less dependent on centralised American services such as GitHub, which plenty of you would rather not sign up for just to report a bug.
Platform
Web
Additional information
I believe it should not be replaced, as current users who already signed up with their GitHub account can still use it with no problems. This proposal is just asking for a second login option, not replacing the current one.