Contirbuting to open-source, open data and so on!

For example, why not contribute to OpenStreetMaps? You will help others and also will be going around your city more, possible discovering more interesting stuff :)

Or why not contribute to OpenFoodFacts? Adding prices, updating data, fixing wrong data - so much fun! And useful.

Or did you know that there is open review system, including places on openstreetmaps, companies, books? https://mangrove.reviews/ It is notably used in CoMaps. You can check plaes that you had been in and inform people about good/bad aspects of said place!

And more! Making world a slightly better place together.