Mining pools are run by teams of people whose full time jobs are to take care of their pool. I don't think any significant BTC or ETH pool runs standard softwar

Mining pools are run by teams of people whose full time jobs are to take care of their pool. I don't think any significant BTC or ETH pool runs standard software without any modifications. I wanted to get a custom coinbase message included in a block, and paid $500 to a pool for the privilege.