Self-Custody, Lightning UX & the Future of Bitcoin Payments w/ Roy Sheinfeld | The Juan Galt Show

From Bitcoin Magazine X Spaces, Business Reporter Juan Galt sits down with Roy Sheinfeld, co-founder of Breeze, to discuss the evolving architecture of Bitcoin's Lightning Network and how Breeze is working to make Bitcoin more usable as a medium of exchange. Roy explains Breeze’s unique SDK architecture, the role of Lightning Service Providers (LSPs), and the technical trade-offs of custodial vs. non-custodial systems.

The conversation dives deep into the mechanics of self-custody, key management, watchtowers, and the controversial use of stablecoins like USDT on Lightning via Taproot Assets. Roy also shares what’s coming next for Breeze—including support for Bolt 12, BIP 353, Nostr Wallet Connect, and WASM.

Chapters:

00:00 – Intro and Bitcoin News Roundup

05:40 – What is Breeze? Company Mission and Evolution

08:00 – Solving Lightning’s UX: Breeze SDK Explained

12:00 – Key Management, External Signers, and Custody Models

15:00 – Native Lightning vs. Liquid-Based Payments

18:00 – Lightning Service Providers and UX Challenges

21:00 – Is Breeze Custodial? The Liquid Trust Model Debate

26:00 – Defining “Self-Custody”: Terminology Controversies

30:00 – Phoenix, Watchtowers & Trust Assumptions in Lightning

34:00 – Unilateral Exit as a Bitcoin Layer 2 Filter

39:00 – Bolt 12 and BIP 353 Support Incoming

42:00 – Building for Nostr: Wallet Connect and Zaps

44:00 – Taproot Assets & Stablecoins on Lightning

47:00 – Regulatory Risks and the USDT Lightning Takeover Concern

49:00 – What's Next for Breeze: Mr. Breeze, WASM, and Multi-Network Support

Recorded 04/05/2025

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Learn more about Breez: https://breez.technology/