Rivet Graph

[adsharma]

So we have CI working here:

https://github.com/Latentpedia/rivet

Plan:

• keep the main branch sync'ed with upstream
• periodically rebase ladybug branch

Done:

• CI has been modified to run on standard github runners
• Single ladybug-server and distributed actors is working
• Per-host ladybug-server, sharded by cluster column has been designed.

Design doc for per-host storage.