Ruby consultancy founded by Andrzej Krzywda that maintains rails_event_store, the aggregate_root gem, and the aggregates reference repository. Runs the Rails Architect Master Class. Helps existing Rails projects adopt DDD, CQRS and event sourcing — rails_event_store itself was built out of that experience. Long-running engagement supporting Lemonade. Internal knowledge sharing (e.g. blog posts from nine years earlier) helped the team build an after-commit transaction wrapper reused on the Lemonade project. Granted contributors direct Slack access and commit rights from day one.