@Pmalek thank you that's what I thought but I was wondering if there is some way that perhaps I could use the #Collective's Treasury instead of the native token (ETH, GLMR etc) but backed by Bitcoin?
Sorry, I can't help you there. I have no idea what the Collective Treasury is.
I think the only way to do it is with a wrapped BTC coin.
Wrapped bitcoin and similar bitcoin-pegged tokens already exist in various forms and blockchains, but they are not bitcoin. You will hear different opinions about these assets ranging from how extremely useful they are to them being a scam, altcoin, or shit token. Locking up real bitcoin to get a bitcoin-pegged token can result in the loss of your real bitcoin if the issuers stop swapping them back. I don't think this will ever get much popularity among bitcoiners.
Every single bitcoin script IS a smart contract! Only certain functionalities that a "currency" does not really need are not available in bitcoin scripts.
That's correct. Bitcoin has limited capabilities when it comes to its smart contract functions. It's not turing complete like Ethereum's Solidity is.