Are you not a coder? Or are your coding skills rusty, having moved on? No matter! You can still contribute to open source. Open source is only one part of a program. The other part is open data. I'm encouraging people to contribute to OpenStreetMap. We're running OpenStreetMap mapping parties all over the world. All skills taught! What's important is your willingness to contribute to an Open Data project, and location, location, location. We can only map where you are.