I'm forever tinkering with building little games. It's how I learn new things and sometimes, how I unwind after a tough day working corporate software development gigs.
For the most part, I use languages like JavaScript, Zig and Go, though I've played with Pascal and Kotlin and many more.
For Go, my GoDom library (GoDom Repo) is useful, as is the Zig counterpart (ZigDom Repo). Things like Bees&Bears have been built in Go using GoDom. So it's at least sort of tested!