*working on transaction fees for cashu*

This will protect mints from denial of service attacks and incentivize wallets to use good coin selection algorithms to gain an economic advantage.

Fee settings I'm currently using are at 0.1 sats per input, always rounded up the the next smallest denomination (1 sat) at the level of a transaction.

According to these super useful measurements by  nostr:npub1thunderat5g552cuy7umk624ct5xe4tpgwr2jcjjq2gc0567wgrqnya79l, around 50% of transactions (up to 1M sats) will have less than 10 inputs (1 sat fees) and almost all will have < 20 (2 sat fees). That's pretty good.

If you are ok with overpaying a couple of sats, the chance of finding a good selection of coins increases substantially which means that as a sender, you can remain offline for most payments. 

Good stuff.

https://m.primal.net/IMPx.png