JJ Con 2026 - Change IDs all the way down: four experiments with jj's data model - Laurynas Keturakis

Engineering is changing: work arrives in prompts, runs in parallel, and merges faster than anyone can review. In the agent tooling gold rush, this talk tries something simpler: see what you can build using jj's data model and tools alone. It highlights four experiments — a revset-like language for selecting hunks, a harness where every prompt is a jj change id, jj workspaces as isolated VMs in a single graph, and a forge with no push or pull. #tech #opensource #jjvcs #jjcon