What do you all use for issue tracking for your systems?

Does anyone have any recommendations for issue tracking for homelab setups? I'm sure I could host some Jira clone but that feels overkill for what I'm doing, and something like MediaWiki is too general purpose.

I'm hoping to track future project ideas (Install Jellyfin / Sonarr, etc) and issues with my smarthome (Fireplace Light not accepting color changes via Google Assistant). Ideally with some kind of organization to it (priorities, subitems, etc).

Yeah I could use plaintext, but that's no fun :)