Play around with learning Computer Braille by just typing side-by-side (kind of needs a desktop screen right now):
https://rfielding.github.io/editor.html
Random code in github for 3D printing iPhone cases, 8-dot computer braille styluses, translating ASCII to computer-braille, and turning a keybow2040 4x4 mechanical key keyboard into a braille keyboard, etc.
https://github.com/rfielding/teeny
With a more expert than me keyboard-building collaborator. @scarlettibach (twitter)
My first video post.