Oooo so on Itch now there's a bunch of metadata you can add to your games. The 'engine' label is cool, and is used in this page that gives you an overview of what stuff people are using to make stuff:
There're also some good #accessibility metadata tags you can add to you itch uploads. Like specifying the input methods, and specific accessibility features.
@blueberrysoft Sadly few people browse by them.
@notimetoplay Looks like most are hidden from the main page too. Hmmm
Cosy amateur game-making community.