This is my personal setup for the Ergodox EZ. I use this daily to develop Clojure apps in Emacs. The name is inspired by the term "ambidextrous", which this layout provides via an alpha-shift modifier (tranposes all face characters on the left <-> right boards.)
It also contains a "vi leader key" and first class access of ctrl/shift/alt modifiers. These modifiers are also fully functional space cadet shifts for ( ) / { } / [ ]. The opening character is on the left side of the shift, and the closing character is on the right. Reference keymap.c for a visual layout.
There's also a media layer with playback controls, volume up/down, and keyboard controls.
I use this layout every day, and while it's significantly more powerful than other offerings (WRT Clojure development), it may be difficult to learn. As of 2017/10/19, no other developer has tried.
I'm willing to assist others in learning, understanding, or extending this layout. Contact me if you're interested.
In the meantime, I'll keep happily clacking along.
- Q