Just a quick note to announce that the retro-fuse project now supports
mounting seventh-edition file systems for read and write on Linux and
MacOS.  As was done for v6, the project incorporates the actual
filesystem code from v7 Unix, lightly modernized to run in user space on
current systems.

The code is available on github for anyone who's interested:
https://github.com/jaylogue/retro-fuse

--Jay