Recently I've felt overwhelmed by the amount of ads in a simple solitaire game (from many distributors). So I've spent some time learning Unity and built my own Solitaire Game to play during my commute, with no required internet connection, and no loading screen, just like the old days of Solitaire in Windows 98. I'm still pending on adding some features to make the game more complete, but it has been a joyride to learn a new stack while building something completely personal.

Other than that I've built some tools just for the sake of exploring some hypothesis that I had, but all of those always felt like work. The game development was something that truly felt like "cooking at home".