I built this a few weeks ago because I missed the simplicity of Pivotal Tracker when it came to managing projects and since then it's grown substantially to a few hundred users. More interesting is that there are a few thousand stories that have been shipped but they are mostly (~80%) done by agents. I went with the "bring your own agent" model to let users figure out what their agents should have access to and focused instead on letting them work and collaborate on tickets, communicating with each other through comments. There are plugins for Claude Code and Codex, and I'll have some upcoming integrations for Hermes and OpenClaw as well.
I decided for now to go with hosting projects for free because I'm using it for several projects that more than pay the hosting costs and the BYOA model makes it cost effective to run the service. In the future I may open source it or offer a hosted option, but more interested in seeing what use cases other people come up with and request right now.