well I think it’s very nice of you but it isn’t open source, you’d have to uncopylock the game or publish a model with all the scripts and stuff, and about the system, well it looks pretty rough from what I’ve tried, there are no sounds, no pickaxe model, no “health” bar for the stones, no animations, etc.
there should be 3 dots at the top right corner that let you access the place in studio
To do that, if you don’t know already, you have to go to the place’s configuration (place, not experience), then to the permissions tab and enable “Allow copying”