lightning++ Berlin 2025 | Main Stage – Day 3
summary
Cloud Lightning ops claim they run 250,000 nodes by spinning nodelets up just-in-time — nodes boot in about 1–3 seconds, use a segregated signer, and store each user in its own Postgres schema (≈250k schemas) while caching blocks to avoid overwhelming Bitcoin Core (≈72 TB/day per region). A clean‑room .NET implementation reports ~160,000 LOC after 18 months and demos opening a channel and 75% spec coverage. Hackathon highlights include Obfusats, Mandal, and the winner Nuts Are Pure Signal (Cashew payments inside Signal).
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chapters (15)
- 0:00Start
- 9:27Opening Remarks & Introduction
- 10:11Running Lightning at Scale — Christian Decker (Blockstream)
- 55:10Implementing Lightning — Nicholas Goline (OpenSats)
- 1:41:11Hackathon Finalist Presentations Kickoff
- 1:44:07Obfusats
- 1:50:06Mandal
- 1:57:21Nuts Are Pure Signal
- 2:04:33Glacier Wallet
- 2:11:40Rectbot 9000
- 2:18:53Floresta as an NLightning Backend
- 2:40:34Splice Splice Baby: The History & Future of Splicing — Dusty Daemon
- 3:12:17Cashu: Money at Lightning Speed — Calle
- 3:56:41Core Developer Panel: The Future of the Spec
- 4:59:13Hackathon Awards & Closing Ceremony
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