I heard about this for the first time on the pod256 episode I posted about yesterday

BTW, the entire episode was fantastic.

I guess the Braiins rewards splitting option can also be an option, and send a % of the mining rewards to sponsored payouts addresses.

https://help.braiins.com/en/support/solutions/articles/77000491071-what-is-a-reward-splitting-function-and-how-to-use-it-

You don't need to be a miner yourself to get an account with a bitcoin mining pool. Any miners wanting to support you can point their rig(s) to your pool account.