You should be comfortable with the underlying Bitcoin concepts like multisig wallets.
Unfortunately because it's the layer 2 of an already complex financial protocol (some say it's simple but there's a lot of specific domain knowledge in Bitcoin imo), you kind of need to be comfortable with the concepts of the L1 (Bitcoin).
I also like the website "Learn me a bitcoin" :
Holy shit, how have I never heard of learnmeabitcoin before? Thanks :)
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