Simple zap marketplace. Users can select an item to buy, Primal zaps seller, auto creates a DM from buyer to seller with product selection, zap amount, and prompts buyer to send their address. nostr:nprofile1qqs2gndun24r2utk5l20tscsdprw5zttvm0qk58w8xhl2ja2kmzt7jcpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0qyghwumn8ghj7mn0wd68ytnhd9hx2tcpsed94 nostr:nprofile1qqswp94gnm4epqsgjkndl4lnd8krzdj5u4mzuppdtxksdymkty63g7gpz4mhxue69uhks6tnwshxummnw3ezumrpdejqzyrhwden5te0dehhxarj9emkjmn93hdf39 nostr:nprofile1qqsppdnxpjc82jlm3yn9gawhv7p4nm69a3f80rg5ycw305xned2s0hcppemhxue69uhkummn9ekx7mp0qyghwumn8ghj7mn0wd68ytnvv9hxgtcr370qv nostr:nprofile1qqsfnnh6v3dspqtnwv3e46aed5k3nypyfx2wtet92ekg9szt3hr9k4qpzfmhxue69uhhqatjwpkx2urpvuhx2ucp99mhxue69uhkummnw3erzd3hxcenzwf4xcmnzdes9eshqupwwf6kummwvek827pwd9hswsgy32 could probably give you better ideas.
