"Jay Logue has an awesome set of tools using the user space file system support: FUSE for Linux and MacOS: https://github.com/jaylogue/retro-fuse which support UNIX v6, v7 and 2.9BSD filesystem formats." is intriguing.
Not directly related, but the links to SDF's interim computer museum in https://groups.google.com/g/pidp-11/c/NR_EUdMj3cI/m/Phu3neBrAQAJ are interesting too.