I like writing learning resources for unorthodox, well designed languages. Active on The APL Wiki and The K wiki. I have a Youtube channel where I occasionally upload learning resources for recreational programming, array oriented programming, and occasionally movie reviews.
For work, I generally use Ruby, C and Python. Mostly prefer Ruby, since it's just that fun and flexible.
I've recently taken a liking to Tcl and Raku. I might use those more in the future.