A friend of mine has been working this year on getting the CV1/Rift S running without the Oculus app/Meta account, which also means continued support for these two discontinued headsets. I don't think she has publicly released it yet, but good progress is being made.

https://github.com/BnuuySolutions/ReLinked

https://twitter.com/BunniKaitlyn/status/1756580547768279466