Malcolm Smith's YEdit deserves mention here, also inspired by the old MS-DOS Edit which was used by so many people in yesteryears to edit their autoexec files, read .nfo files and poke into the numerous batch files of the day. MS-DOS Edit no longer runs natively outside of something like a DOSBox, but YEdit is the closest thing I have seen to recreating almost exactingly the old nostalgic experience.
Tilde is of course more for the non-Windows audience while YEdit is only for Windows.
MIT licensed source: https://github.com/malxau/yori/tree/master/edit
I would then mention far2l project that aims to bring Far Manager to -nix systems: https://github.com/elfmz/far2l. It is cross-platform and does have a great built-in editor and viewer