Despite not talking about it much, I'm continuing to work on tinyping. In the spirit of working with the garage door up, you can try an extremely early version at app.tinyping.net. It mostly works, though! Pings are scheduled and stored appropriately, and you can edit tags for them. It also follows the Automerge project's advice on how to best structure documents to avoid the main document growing and growing forever (it stores pings in journal documents, one per month.)