To Do Before Release

Things to do

[ ] update Nixpkgs rev for run scripts
[ ] Python (mimic structure of Haskell)
[ ] technical improvements
- [ ] review spacemacs.static.el for settings to return to layer
- [ ] option for Python env to persist to non-/run/user
- [ ] remove ML library maintenance
[ ] An official release version/tag?
- [ ] Contributor documentation somewhere
- [ ] Figure out a license