We’re building bitcoin ticketing into nostr:nprofile1qqs2rx4daefmcuwjttl0xegx0guh3tps64fq6dhv3nr56aagw2hhxkgpz4mhxue69uhkummnw3ex2mrfw3jhxtn0wfnszrmhwden5te00fshqtnhv96xx6qm06g2u very shortly so you will be able to create the retreats right on there, post it directly onto Nostr, and sell tickets in both fiat & bitcoin.
Download it and try it out