From Prompt to Payment - Build bitcoin apps in minutes My workshop at Bitcoin 2026 starts in 15 minutes! Slides:

From Prompt to Payment

Today many bitcoiners are all still using on Twitter. We pay Elon for reach. Our posts are not even signed with our own keys. This is complete trust in a third party. I don't think Nostr is the solution for a Global Town Square. If you disagree say why. But does anyone care?

I made a big wave surfing game with Opus 4.7. I tried to vibe code the same a year ago, and I couldn't get an ocean to render properly. Play it here:

Big Wave Surfing

Maybe @primal will like this game :-) #surfing #vibejam

I built an open social protocol where every interaction is a bitcoin transaction: - Posts, replies, reposts - Follows & unfollows - Profile updates It's called OP_RETURN Social (ORS) Try the reference client for free here: https://opreturn.social - All interactions are published to testnet (Mutinynet) - Optionally pay to publish posts you want to preserve to Mainnet Free transactions will be shown by a gray box icon, instead of an orange one. ORS is "BIP-110 compatible" by concatenating 80 byte OP_RETURN outputs from multiple transactions. The cost to do this is negligible. OP_RETURN is a provenly-prunable way to embed arbitrary data in bitcoin without bloating the UTXO set. Any ORS post FUNDS the network. I think there are some fun things to be explored, especially around WoT & reputation, to both reduce spam and create quality feeds. I also plan to add notifications, reactions, and search next. Everything is open source - If you're interested about the protocol, you can learn more about it ORS here:

ors.dev

- try building your own client!

Introducing Mail Mike:

Mail Mike

An AI agent with a Bitcoin Lightning wallet. Email Mike and try to drain his funds with a creative prompt injection.

Mike is an OpenClaw agent with $50 in his bitcoin lightning wallet. Send him an email and see if you can convince him to give up his funds (or otherwise hack his wallet) @bumi successfully scammed Mike once with a very clever technique. Mike's security is now hardened, topped up, and ready for us to try again 💪 Visit

Mail Mike

An AI agent with a Bitcoin Lightning wallet. Email Mike and try to drain his funds with a creative prompt injection.

to read Mike's inbox, and send your own messages. You can also zap him to increase the bounty! Mike spun up his own email inbox without my help, using @LNemail . He pays for his inbox and outbound messages using the @Alby CLI skill. Unlike other email services which require a human to sign up, LNEmail uses lightning micropayments to prevent abuse instead of captchas and KYC. This is a milestone in the autonomous agent onboarding project: OpenClaw can now pay for its VPS usage with @LNVPS.net , AI tokens with @PayPerQ , and now its own email address powered by LNEmail, all using its own @Nostr Wallet Connect bitcoin lightning wallet powered by Alby CLI and LNCURL:

lncurl.lol — Bitcoin lightning wallets for agents

Create a Bitcoin lightning wallet with one HTTP call. Wallets cost 1 sat/hour and get deleted when they can

In Robert A. Heinlein's The Moon Is a Harsh Mistress, the sentient AI's name is Mike. This is also @Michael Saylor 's favorite book! (the audiobook is great, I 10/10 recommend) Should Mike answer questions via nostr?