Programming wise:
Qt/Qml
Lua and Scheme.
Inform7 too of course as we have discussed elsewhere.
Which is way too many honestly. I bounce around too much it’s something I ought to work on. Though I did manage to learn enough Qt in 2018 to be able to write some basic UIs and apps.
I actually did plunk down the cash for a 32blit this past year. Their slated to use an entirely lua based development model. Which means I should have plenty of motivation and a good target for lua & fennel sometime next year.