nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg This feels so stupid to ask, but I am really struggling to find a medium depth Cashu overview. I have a reasonable and humble understanding of btc and lightning which I acquired by reading the mastering bitcoin and mastering lightning books. I understand that cashu is early in its life cycle but so far GitHub repos have not made it click for me and the online news articles all way over simplify the content. Do you have a recommendation? Much appreciated and congrats on the contribution!