I used a commercial variant of Plan9 called Transit in the 2000s. It ran on nCUBE n4 computers and had a CLI. It was built for high-performance video streaming.

I used a commercial variant of Plan9 called Transit in the 2000s. It ran on nCUBE n4 computers and had a CLI. It was built for high-performance video streaming. There were interfaces for machine interconnection in a hypercube configuration, to balance load and resources.