Read all about it in the latest edition of Feel the Breez: https://newsletter.breez.technology/p/014-feel-the-breez

Lightning hit the mainstream in November, and the momentum keeps building as we head into the last month of 2025. One thing is clear. There’s never been a better time to build on Bitcoin, so let’s jump in:

It’s official folks: Lightning is now mainstream.

Square just enabled bitcoin for FOUR MILLION merchants across the US. Four million more reasons for developers to pay more attention.

For developers everywhere the message really couldn’t be clearer: if your app doesn’t have Lightning yet, you’re going to be left behind. And if history is anything to go by, the clip below is a perfect preview of what happens when you ignore a seismic shift like this.

The good news is that it’s easy to catch up. The Breez SDK gives you everything a developer needs to add Lightning to any app. Minimal effort. Maximum flexibility. Start building today and join the future of bitcoin-powered apps.

We get this question a lot: What’s the best Breez SDK implementation? Spark or Liquid?

Choosing between our Spark and Liquid implementations is a developer’s dream dilemma. That’s why Roy has broken things down in his latest post, walking through the differences between the two Nodeless implementations, and how each one unlocks different superpowers for your app.

Bitcoiners know the value of being early. Bitcoin is still young and reshaping global finance. Lightning is younger and reshaping Bitcoin. Spark and Liquid are even younger, and they’re finally turning bitcoin into the peer-to-peer electronic cash the world has been waiting for.

Choose Spark if you want instant settlement and offline support. Choose Liquid if privacy is your priority. Either way, the best move is to start building now because the future belongs to the developers who don’t wait for tomorrow.

Builders around the world continued to answer the call for </time2build>.

As the challenge progresses, submissions are starting to roll in. We’ve already seen integrations across events, gaming, Nostr, and more.

The global meetups haven’t slowed down either. Developers are still gathering across Europe, the Americas, Africa, and Asia as they look for inventive ways to bring bitcoin to existing open-source apps. And just in case you thought you’d missed the boat, there are still two weeks left, with submissions closing on December 16.

You know the drill by now. It’s time to build.

For this month’s Lightning in the wild, we’re heading over to Europe.

Bringin is freshly out of beta and ready to make bitcoin part of everyday life for Europeans. Since their release in October, we’ve seen a wave of videos showing the app in action.

Bitcoin in every app, used every day. Let’s go.

November saw Roy head over to Europe for the Bitcoin Conference in Amsterdam. He kicked things off with a Q&A hosted by Shinobi on unlocking Bitcoin’s utility to make value move like information.

Later, on the Oranje stage, he joined Jesse Shrader (Amboss) and Veronika Kütt (Arkade) for a panel on the user experience of bitcoin payments, where he reinforced what is fast becoming the mainstream view: Lightning is the common language of bitcoin as the technology moves into the spotlight.

With Lightning front and center, the online conversation followed the same energy as our partners took to social media to answer a simple question: “Why Lightning?”.

Have a read of what they had to say 👀

Until then, remember: the best time to get into Lightning is now — it always has been.

See y’all next time ✌️