I wound up building my own with Claude, I made it SQLite first, syncs to GitHub, can pull down from GitHub, and I added "Gates" to stopgap Claude or whatever agent from marking things complete if they've not been: compiled, unit tests run, or simple human testing / confirmation. The Gates concept improved my experience with Claude, all too often it says it finished something, when in fact it did not. Every task must have a gate, and gates must pass before you can close a task. Gates can be reused across tasks, so if "Run unit tests" is one gate, you can reuse it for every task, when it passes, it passes for that one task <-> gate combination.
Anyway, I'm happy for Beads, Gas Town not so much my wheelhouse on the other hand.