lightning++ Berlin 2025 | Main Stage – Day 1
summary
Day 1 reports concrete wins and real problems: an event merch system uses BTC Pay and self‑custodial checkout, runs a Square pilot and records 4,183 transactions in eight hours but repeatedly stalls on venue Wi‑Fi; a wallet stack (Albby + Nostra Wallet Connect + LBMCP) lets AI agents buy flights, pay Bitrefill invoices and invoke paid MCP tools; a new one‑time‑signature channel design and BitVMX/BBMX promise watchtower‑efficient channels (700–750 wu on exits, disputes now ≈$80 with garbled circuits targeting ~$16); a large LDK node reports 600% growth and automates channel opens, fee setting and UTXO harvesting; small operator tweaks to commitment intervals and batch sizes unblock stuck swaps.
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chapters (8)
- 0:00Start
- 3:22Bitcoin as a Medium of Exchange — Michael Markle (BTC Inc.)
- 32:42The Intersection of Bitcoin and AI — Roland Buick (Alby)
- 1:02:44Secure and Watchtower Efficient Payment Channels with BitVMX — Sergio Lerner (Fairgate)
- 4:36:56User Not Coder: Lightning in the Trenches — Cody (LN Markets)
- 5:03:53What We Can Learn from Spark — Steve Lee (Spiral)
- 5:35:15Running the Block Lightning Node — Tyler Wood (Block)
- 6:08:45Panel: Unlocking Bitcoin Payments with Open Standards — Moritz (Moderator) with Evan (Zeus) and EK (Stacker News)
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