

I don’t care about which operating system, but my hobby projects have always included things that help myself. E.g.
- Software to collect/archive/analyse real life data (e.g. real estate data from various sources).
- Scripts to parse and structure data that I need e.g. for learning other things.
- Firmware for small embedded electronics.
- Home automation.
So my suggestion is to think of something that you need, but there isn’t a perfect solution yet. Although this advice comes from someone who has been working in software development for two decades now.
If you haven’t programmed before, think something very very small first.
Finland (Suomi) basically means a swamp (suo).
If you look at the etymology, there are other explanations of the origins, but a modern person would associate the name with a swamp. I guess it makes sense with all the lakes.