The repository has been moved
See https://github.com/TypesettingTools/Aegisub/releases/tag/v3.4.1 and https://aegisub.org/blog/aegisub-3.4.0-released
There will be no further releases out of here, but this should hopefully catch any lingering distros still tracking releases from this repo. Issues and PRs will be closed out once I get a chance to go through them, and the repo eventually archived.