[dividuum]

I built https://info-beamer.com. It started as an open source project to easily build an animated info screen for a conference using a simple Lua API. Since then I ported the software to the Raspberry PI (https://info-beamer.com/pi) and built a hosted service (https://info-beamer.com/hosted) around it. Today you can either purchase licenses for the PI version and build everything around it yourself. Or you can just download a prepared minimal distribution, unzip it to an SD card and instantly control your display(s) remotely.

I have multiple companies that build products based on the software: From advertisement displays to complete purchasable hardware showing weather, RSS and images. On top of that I provide consulting for custom visualizations.

It's a really fun and challenging project since it consists of low level C/OpenGL/OMX programming, building a custom PI linux distribution and running a quite complex website.

[meir_yanovich]

This is what I call real niche , very impresive. How do you promote it ? Do you make a living out of it ?

[dividuum]

Promotion is a mix between word of mouth (I run installations at hacker conferences) and being found when people search for a PI based solution. So far it's not enough to make a living, but it's ramping up. Hopefully I'll break even in the next few months.