Small, fast and limited text editor

Features and limitations:
* Has syntax highlighting for Go code.
* Never asks before saving or quitting. Be careful.
* Home and End are not detected by the key handler.
* Can format Go code using gofmt (press ctrl-f).
* Expects utilities like gofmt to be in /usr/bin.
* Will strip trailing whitespace whenever it can.
* Must be given a filename at start.
* Requires that /dev/tty is available.
* Copy, cut and paste is only for one line at a time.
* Some letters can not be typed in. Like the "ash" grapheme
  formed from the letters a and e.

WWW: https://github.com/xyproto/o