If "Ray" refers to the , this could be a prototype for a deterministic, yet unstable, state machine. The "Pilot" would be a live test on a small cluster. v0.2.0 suggests they have moved beyond the initial proof-of-concept.
Ray-Kbys (pronounced "Ray-Kay-bees") is believed to be the lead architect of the Determinable Unstable project. Traces of an older GitHub account under the handle r_kybs show contributions to a neural network obfuscator called "FogNet" in 2019. The account has since been deleted. Determinable Unstable -v0.2.0 Pilot- -Ray-Kbys-