I don't know if it counts as production, but I use it for my task tracking, as well as a web GUI. When talking to Claude and working on a plan for a feature, I tell it to cut the tasks into small tickets and write it to my selfmade Ticketboard.

My phone's AI assistant can talk to it too, so if I remember a task mid walk out in the sun, I can just talk to it and it can write it down.