@lanodan @kirby patch(1) still emits ed scripts.

I don't mind busybox's vi, it's fine. (It's the default vi on half these machines because vim is impossible to use nowadays and litters the filesystem with "I wish this was TOPS-20 on a VAX" bullshit metadata files with undo history, and nvi doesn't always build. You can get 1980s vi to build on $current_year Linux, all I had to tweak was the makefile, so I don't know what nvi's excuse is.)