Walnut Creek sold a Sprite CD-ROM back in the day. I got Sprite to boot on a Sun SPARCStation IPC. It was kind of unstable. I really wanted to try process migration and the log structured file system.
Process migration seems like something that should be commonplace today. It would be an amazingly handy feature.
You really don't want to run Sprite on a single host, unfortunately -- the local filesystem path is buggy, and there are some major bugs in the system as preserved on the CD-ROM, e.g. vfork() is totally borked, at least for software which expects a BSD-style vfork.
With some fixes, it can be pretty stable. Here's a web server running on Sprite on an IPC: https://ember.shockfox.net/
Or, well, it is running right now. I don't leave it online 24/7, so caveat emptor to future visitors.