Samourai Dojo v1.21.0: $1 Fee Estimator

"This fee estimator tries to determine the minimum fee rate required for a confirmation in the next block with a given probability. It only uses data from the mempool and it's based on 2 empirical observations + a statistical property of mining."

https://www.nobsbitcoin.com/samourai-dojo-v1-21-0/