Keyboards
OPRIQ (OPtional RIght Qwerty) — keyboard layout with possibility of solo-left-handed-typing of any possible keys combinations. You can even code with just left hand. Solo-left-handed-typing does not prevent two-handed typing in any way.
Hy lang
hy is Python dialect with LISP syntax. It is fully compatible with Python ecosystem. See more on why to use hy: Hy — Why
Projects:
Wy — hy lang without parenthesis. Implement as a transpiler that generates hy files with 1-to-1 line correspondence to source wy files. Fully compatible with Python ecosystem just as hy.
fptk — functional programming toolkit for hy lang. Offers curated list of fp-relevant functions and some haskell-inspired macros.
Awesome hy — list of opensource projects and resources related to hy lang.
Other
Haskell learning materials — collections of materials for, well... learning Haskell. Clearly distinguishes between pragmatic and esoteric sides of the language.
WM Cells — stylesheet for Wolfram Mathematica notebooks with proper visual structuring of WM cells.