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LATEST POSTS

Jul 7, 2026

Spiral x Goose: The Best is Yet to Honk

May 13, 2026

The Best Money For Agents

Spiral PM Mat Balez weighs the relative merits of stablecoins vs bitcoin for agentic payments and nudges us towards the more neutral option.

May 12, 2026

Meet Loupe: AI-Powered Vulnerability Scanning for Open-Source Bitcoin

The asymmetry between attackers and maintainers shouldn't decide bitcoin's security.

Apr 15, 2026

Metacognition is the AI Skill of the future. Always has been.

A Spiral report on the adoption and mindset of AI usage in open-source development.

Apr 8, 2026

A Decade of Workarounds

How Bitcoin Core's mempool policy evolved to support Lightning (and other Layer 2s), and why it took nearly ten years to do it well.

Feb 25, 2026

Open-Source AI Needs to Get Serious

Agentic payments are coming. It’s time for open-source agents to step up or their days are numbered.

Dec 16, 2025

Bitcoin Merchant Community: One Month Update

It’s been one month since we launched the Bitcoin Merchant Community and we’re off to a strong start.

Dec 11, 2025

Making Bitcoin Speak Human

Spiral has supported FOSS bitcoin since 2019, making bitcoin everyday money by improving security, privacy, and especially UX. That’s why we’re focused on how the next wave of users spend bitcoin.

Nov 12, 2025

Merchants Don’t Read White Papers, They Read Cash Flow Statements

Why the argument for bitcoin to merchants is profit, not theory, and how we can make that case at their registers.

Oct 29, 2025

The Scroll #5: The Many Faces of CoinJoins

It's 10 PM, Do You Know Where “CoinJoin” Gets Its Meaning?

Oct 23, 2025

Our Hopes and Dreams for Bitcoin Design

Just a Lil Bitcoin Product Blog #3.

Oct 2, 2025

Self-Custody Found Dead in Miami Condo

Matt’s mad again, but for good reason. If you care about bitcoin’s promise, you should be mad, too.

Sep 17, 2025

Lexe Uses LDK to Run Self-Custodial Lightning in Secure Enclaves

A Lightning Development Kit Case Study, by Max Fang

Aug 21, 2025

Nerd of the Month #5: A Castle of Glass

Or, rebuilding the Lightning Network's Foundations.

Jul 31, 2025

2025 Q2 Spiral Progress Report

We’re working on stuff. What stuff? This stuff. It’s a lot more stuff than we would like.

Jul 17, 2025

Bringing ₿ to the World

Bitcoin has a symbol – let’s use It.

Jul 2, 2025

Plushie Confidential #4: Logistics, Retail, Building a Team, and AI Nightmares

You’d think that promoting a plushie in a foreign country where plushies are ubiquitous would be all fun and games, and you’d be half right. It is fun, but it isn’t a game. Plushie work is work.