My family uses a custom Todo list on home assistant. I’ve got a separate dashboard of items we can just click to add to the grocery list, and then when shopping, checking them will move them out of the way. Very convenient, quick, and shared. So if you use HA, it might be good option, especially since you’re wanting something simpler (I was in the same boat)
I’ve been using the fdroid syncthing-fork version for a long time now and haven’t had any issues at all… Doesn’t mean it’ll last forever but it’s been getting the job done for me even in its current state.
… And can’t remember my original reason to use the fork instead lol