cbbrowne custom keyboard

Due to cbbrowne@acm.org Christopher Browne

Much of this is copied from my Planck keymap...

Set up keypad in the middle of the screen?
Or perhaps I should set up a layer for that?
Need the Random, version, my name keys
Almost certainly I want shift/control/alt on the right side, superimposed on whatever is at the rightmost end
Need a good place for RESET
Definitely want the keyboard to "breathe"
Perhaps nice to have some programming constructs as in jeremy-dev
- It had C operators such as /=, *=, -=, +=, ...
Should I have some tmux commands like in mollat?
How about adding some emacs commands?