nostr:npub19ha7tju4teqp3dmwv4p28wrcy9zd6h6hxkg5mwvjrlfycweazpkse2q0fa nostr:npub15z2javq62eh2xpms7yew0uzqsk4dr7t3q3dq4903uuxdyw2ca3kstx6q95 nostr:npub1nnkhv7scg4zxr9t6sgukyxn923ed6485ud8m7a3lurr4qd4lhv7qhrp49m have been doing exactly what you want. I bet they might have some ideas.
Discussion
Here's a video I made showing one way that you can do it.
You just need an icecast server and BUTT.
Someday soon I'll make a video showing exactly how I do Lightning Thrashes Live.