worried about the shitcoin door being opened by potentially onboarding stablecoins for trading. I prefer the circular economy of it's all just bitcoin here on nostr. Maybe a town square type deal where I can post my amount requested to buy/sell, price range and time period that my offer is valid for, my region and preferred method of payment. as @nikicat stated, push notifications would be a must.
probably need some sort of reputation based system where each buyer and seller would have to review each other after a transaction? Idk.
People should also be P2Ping the sales of their digital or physical goods for bitcoin, people can post bounties and job offers similar to fiverr for bitcoin. bounties for certain tasks.