I've created an awesome-solarus list, as the famous 'awesome'
lists (You can find 'awesome' lists about every existing topic related to programming).
Here it is:
https://gitlab.com/solarus-games/awesome-solarusYou can add resources, scripts and projects, if they're complete or near completion, and ready to be use for people who want to make a Solarus quest. I think lots of what is indexed in this topic could go to this list.
Once the Solarus awesome list is sufficiently long, I will add it to some related lists like: awesome-lua, awesome-gamedev, etc. to help Solarus visibility and popularity.