Want a back-lit keyboard? Make one yourself. Though you may not want to after seeing this build by [prodigydoo], who devoted 40 hours to upgrade his mechanical keyboard with a smattering of shiny.

With the mechanical portion of the project out of the way, he spent a great deal of time working on the door’s electronic components, including the PIC-based controller and capacitive keypad.

The maker has used Muse 2 headset, which already had Python support for brain activity tracking. Along with that, to make the system portable, the Raspberry Pi 5 was chosen as the dedicated computer, ...