The tiny platform I'd like to present is the result of doing things with colored LEDs, lights, motors, relays, and sensors for over 10 years, as a single person - for fun, art, theater, exhibitions, homes and offices.
Such installations are expected to last, so I had to find a way to minimize accumulating technical debt with every new idea. I wanted rather experimental installations to be quickly to set up, easy to tweak and debug, be accessible for end users, and still remain highly efficient to maintain for years, with zero external dependencies. And of course, all open source, as I believe infrastructure should always be.
By now this has become an easy to install (or even build from scatch) OpenWrt/Linux image, running on Raspberry Pi (oldest ones are enough) down to post stamp sized Omega2.