I'm not sure this counts; since I less "Gave up on" and more "figured it was done enough for what little time I had to work on it as a personal toy; to my later

I'm not sure this counts; since I less "Gave up on" and more "figured it was done enough for what little time I had to work on it as a personal toy; to my later regret," but... Maybe 4-5 years ago I wrote this. https://github.com/Gehn/JustADistributedVPL https://github.com/Gehn/JustADistributedVPL (I uploaded it to github ~2 years back on the request from a friend who wanted to use it.) It was a hobby project to control the raspberry pis around the house by giving me a visual programming language to connect programmatic modules in a graph via a web UX, including allowing networked hops between nodes. IFTTT for IOT. I thought I was being derivative even at that point given yahoo pipes and some similar concepts, but having seen the IOT control/home automation boom since then (and the many products who later moved far past what I had been thinking of), I do feel like there might have been opportunities to be ahead of the curve there.