[ConfucianNardin]

See under the status headline on http://bcachefs.org/ and decide for yourself whether that's good enough for your use case.

[rogerbinns]

Wrong filesystem. bcache is the one that sits in front of another filesystem, and improves its performance. bcachefs (your link) is from the same author, but is a standalone filesystem.

https://en.wikipedia.org/wiki/Bcache

[DiThi]

I've asked about both, but it's always good to clear things out.