This keymap shares many commonalities with the default keymap. See its readme for a write-up on many of the decisions, including how to generate the formatted json file with json2crab.py and the general philosophy for each layer.
Because this is my own keymap, I didn't refrain from using shortcuts that make sense for me and may not make sense for most.
Key differences from the default keymap include:
Because I only learned to touch type when I switched from qwerty to workman, my base layer is workman and my layout doesn't contain a qwerty layer.
My layer 1 hosts a variant of RSTHD that I am developing, inspired from workman's focus on reducing side-index-motion. It should become my end game keymap eventually, but I still haven't found the time to learn it to a working proficiency.
Instead of a placeholder 0 and 1, the secondary thumbs on my keymap perform the following actions: