Learning Figma and Anima to build an interactive design portfolio. I've only had this much fun building exactly two times:
-When Flash was an acceptable medium
-Xbox UX - the UI builder exported to code ready XML and eventually three of us added a LUA syntax to add ActionScript like functionality to prototypes. It was an absolute blast being able to put together a vector UI, add some tiny scripts, and have a whole Dashboard/ Marketplace/ Settings etc mockups become fully functional prototypes devs could get into production ASAP