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I'm only familiar with Ordinals.
OK shitcoiner...
the projects ongoing for BTC layer 2's.
It is ONLY one: Lightning Network. And here you have a guide to start with: https://darth-coin.github.io/beginner/getting-started-lightning-en.html
Forget about "projects" and crap shitcoineries. Concentrate only into learning about Bitcoin and Lightning Network. You will thank me later.
I am just asking questions. I am new here but just because I am familiar with ordinals, as you seem to be aware, doesn't mean I pedal or trade in them. I am very interested in BTC but I also am aware of it's current lack of smart contract capabilities. Now I know there's project like RBG that has theoretically able to smart contract lightning btc, but I am interested in any new developments I am yet aware of. BTC is great but in Belize it is not viable. So shitcoiner or not I like to pay rent and eat.