The Alphasmart ($30 on Amazon, but also ebay) is a low-end gadget much-loved by writers for its simplicity and enforced focus on the task at hand: writing. But among the many limitations is its cheap rubber-dome keyboard, the stuff of nightmares for serious typists. Enter Lazy Dog on the geekhack forums, who replaced his with a proper clicky 'board, all hacked into the original case.
I designed the PCB in KiCAD. This was my first time using KiCAD or any EDA software. I found it surprisingly straightforward and accessible, but also like most open-source software, possibly designed for use by aliens. ... After carefully connecting the flex cables, screwing it all together, and placing the keycaps, I finally had a fully working machine! It produces predictably loud tock tock tock noises, and is an enormous improvement over the previous keys.
What a beautiful monster. Read the rest