For better or for worse, I spend a lot of time on github, triaging issues (for Go) and writing/reviewing pull requests (for work).
Apparently I never bothered to click the Pull requests or Issues tabs at the top of every page 🤦. Anyway, they're sort of useful, though I still want a personal kanban / project board for organizing stuff, without needing access to the repos and without littering timelines with status changes.