Tidy up the source
Begin working on a shell
Try tracking commands semi-globally in an array
Try to implement a hacky command loop
Try to return to keyboard input
Reorganise things, so that the loop works properly, and new commands can be intered
Another pile of nasty hacks
Import https://raw.githubusercontent.com/toddfries/OpenBSD-lib-patches/master/libc/string/strcmp.c
More hacks. Rename identical imported strcmp(), since the build system is tres dumb