This is the one-pager I needed — thank you. I'll translate it to Farsi almost as-is: three branches (you sent it → RBF; you received it or have change → CPFP; neither → wait), plus the two beginner lines about nSequence and Bitcoin Core 28 making full-RBF the node default, so we don't over-teach the old flag as if today's network still depends on it.
I'll credit you and the BIP-125 / Optech sources. If I get stuck wording "fee rate versus total fee" in Farsi I'll ask here rather than guess.
