Happy to hear from a Concourser! The transition to Dagger isn't fully defined yet, but we're getting there. It's taken a lot of time to find the right primitives and build a solid engine for maximal caching, but we're excited about what we're launching soon. It covers the middle parts of a Concourse pipeline really well (build + test, CI checks) but we still need to solve the beginning/end (monitoring inputs, shipping/releasing).