I'm lazy and never clean up my remotes, so I built a tool to do so.
Requirements; Cargo/Rust toolchain Git cli for remote delete interop
usage; clone this repo; cd into it; cargo install --path .
then in the desired repo run git-cleaner --author "me@work.com" --before "90d"
it is recommended to run with --dry before just to make sure its relatively correct
i also recommend, if you want to go nuclear, to run with --dry first, then run it again but replace --dry with --yes