[thomastjeffery]

Platform is one major problem space.

Another is interface. There are plenty of people who would love to use Vim, but simply don't like the keybindings. Same for emacs, every window manager/desktop environment, etc.

For no reason in particular, we tend to very tightly couple functionality to interface. We could avoid an awful lot of duplicated work if we factored UI out of tooling, and made it more user-definable.