I took a course like this a couple years back and actually started an open source project through it. My group found a local organization who was interested in

I took a course like this a couple years back and actually started an open source project through it. My group found a local organization who was interested in using the software we had in mind after and they served as our "client". So, if you have any ideas you'd personally like to work on, perhaps you could take that approach. Since then I've been the client for student groups as well; we had a student group last semester work on an experimental component of the software I wrote when I took the class. Having served in both roles (student and client) I have a good bit of advice on strategies for this type of course (hint: it's totally different than any other group project and most personal projects you've likely done), but it doesn't really belong here. Feel free to contact me via email if you'd like to chat.