On Chain Wallets can receive funds without an invoice, correct?  Like people can just send BTC to your wallet address. Do you have to have a set invoice amount to receive via lightning?  Can people just send you any amount?  Is this why you need something like Alby or a primal lighting wallet?  I did set a Mutiny Wallet and that seemed to work with NWC to receive funds of any amount but then what is the lighting address associated with that Mutiny Wallet?  The addresses confuse me. #asknostr #bitcoin #lightning #onchain