Ask HN: Great things to do with a Pi 2 in 2029

SO I got a pi 2 and some time for projects for the next couple months so I was wondering if anyone knows about cool projects that can be done with a Pi 2 nowadays, a lot of the pi projects I see nowadays are much better fitted for more recent models, but I want to challenge myself to do something elegant or to learn how to handle systems and projects in limited memory environments such as the pi2 so if you have any good suggestions please leave it in the comments.