I have written 2 utilities that may be of use to digital archivists:

printable-binary: A way to visualize/serialize raw binary data into a string form that doesn't break terminals (converts to/from specially-selected utf8 glyphs that stay monospaced in most fonts) which has some unique features: https://github.com/pmarreck/printable-binary

bitrot_guard (yeah, apparently I can't decide whether to use hyphens or underscores in names yet, lol): A way to restore a user-configurable percent of data degradation in a file or set of files... without touching the original files. Only dependency is par2: https://github.com/pmarreck/bitrot_guard

Both should work on macOS/Linux/WSL.