Pierre Simon

Arrived in Aruba yesterday after my uncle passed away. Good to be back 'home' with family. 💙

Hit the barber today and ran into an old colleague from my Aruban police force days! When it came time to pay, it was cash or a local payment method called Sentoo.

From a user perspective, Sentoo was flawless—scan a QR code, hit a payment link, open the local bank app, and approve. Seamless. But looking at it through a technical and merchant cost lens, Lightning and

still blow it out of the water. ⚡️🥜

Numo Pay would have been an absolute game-changer for this merchant—instant, zero-fee tap-to-pay offline via ecash, backing up directly to

. The island is already comfortable with QR-based instant payments... now we just need to help local shops swap out the legacy banking middleman for sovereign rails! 🇦🇼

cc:

#Aruba #Bitcoin #LightningNetwork #Cashu #BTCPayServer #Payments

Great job to

and the

developers on continuously expanding the fiat list in the Numo app!

Just a minor housekeeping note for the dev team: Currently, the list includes the old Netherlands Antilles Guilder (ANG). The Netherlands Antilles dissolved back in 2010, and the currency has officially been replaced by the Caribbean Guilder (XCG) for Curaçao and Sint Maarten.

Time for a quick ISO code swap in the backend to keep the fiat options perfectly up to date! 🇨🇼

#Cashu #Numo #Bitcoin #UIUX

Commuted into Amsterdam this morning: caught the bus, hopped the train to Amsterdam South, and took the metro straight into the city. The entire multi-modal transit journey was executed flawlessly via a simple Google Pay contactless tap. 🚌🇳🇱🚇

The UX of the Dutch OVpay framework is a masterclass in frictionless infrastructure. The tragedy? It runs entirely on legacy fiat rails. 📉

Imagine this exact tap-and-go convenience built natively on Bitcoin Layer 2 or Layer 3 architectures. Think about Lightning routing or completely free Spark-to-address transfers. Better yet, look at

protocol wallets like

which already demonstrate true tap-to-pay functionality via NFC—even while completely offline. ⚡📱

The legacy rails have the onboarding UX solved, but open protocols—combining Lightning liquidity, free Spark settlement, and private Cashu ecash—possess the vastly superior infrastructure. Time to bridge the gap. 📈🛡️

#fintech #bitcoin #lightningnetwork #Spark #Cashu #payments #OVpay #grownostr

Just downloaded the new Numo app from GitHub! 📱⚡️

I usually stick to the Play Store, but this was surprisingly easy to install even for a non-techie. The interface looks incredibly slick and clean. Ready to start accepting ecash! 🤙

Check it out: https://github.com/cashubtc/Numo/releases

#Cashu #Bitcoin #Numo #Nostr #Ecash

Following a recent debate on the nature of Layer 2s, I want to clarify why the distinction matters. Many see Bitcoin as a single-use asset, but we are moving toward a reality where Bitcoin is the settlement layer for the entire sovereign internet. 🛡️

Why Lightning, Taproot, and even Nostr belong to the Bitcoin ecosystem:

• Lightning is Bitcoin: It uses the same monetary base and valid Bitcoin script; it is simply off-chain settlement.

• Taproot Assets: This is a native Bitcoin protocol. While it can mint stablecoins like USDT, the finality and security are anchored directly in the Bitcoin blockchain.

• Nostr & Chaumian E-Cash: Protocols like Cashu or Fedimint (Chaumian e-cash) are now functionally "Bitcoin protocols." They provide privacy and speed, but their ultimate value is settled in sats. ⚡️

Yes, these technologies could theoretically work on other chains, but they have rightfully been built on Bitcoin. Why? Because you build your house on a rock, not on shifting sand. Bitcoin provides the only immutable, decentralized foundation strong enough to support these layers. 🪨🍊

Do you see Bitcoin as just 'digital gold,' or are you ready for the 'Bitcoin-native' world of apps and layers?

#Bitcoin #LightningNetwork #Nostr #TaprootAssets #Cashu #SimonAcademy #SovereignTech

Just onboarded to Minibits! ⚡️🪙

I’m officially testing the intersection of ecash and Lightning. The privacy of the

protocol combined with the speed of Lightning is a massive upgrade for micro-payments.

Great to see projects like

making this tech so accessible. If you’re building in the #PlebChain space, this is definitely worth a look for instant, private transfers.

The circular economy is moving from theory to reality. ₿

#Ecash #Cashu #LightningNetwork #Bitcoin #Minibits #Nostr #Privacy #PlebTech

Just published my latest article on Nostr: The Sovereign Stack. 🛠️

I'm continuing to document my personal and professional journey into Bitcoin, this time breaking down the "How" of my current setup—navigating the gap between self-custody and legacy EU fiat using Bitkit, Speed, and

. I also explore why eCash is the secret to scaling the next billion users and call on our builders to finally give us the "Revolut of Bitcoin."

Full article here: https://yakihonne.com/article/naddr1qvzqqqr4gupzp72yrjv3wlzhdew3leu0qxe4ynthk5td8gd4h8jmdy3g2plm3c23qq24gjtxddr5k6n9t94ku6nc236n2aekgfs4ykqw7zl

P.S. If you've already moved to the eCash layer on Yakihonne, test the plumbing and send a Nutzap my way! ⚡🥜

#Bitcoin #Nostr #Fintech #Sovereignty #Cashu #eCash #BuildOnBitcoin #Compliance

Just published my latest article on Nostr: The Sovereign Stack. 🛠️

I'm continuing to document my personal and professional journey into Bitcoin, this time breaking down the "How" of my current setup—navigating the gap between self-custody and legacy EU fiat using Bitkit, Speed, and

. I also explore why eCash is the secret to scaling the next billion users and call on our builders to finally give us the "Revolut of Bitcoin."

Full article here: https://yakihonne.com/article/naddr1qvzqqqr4gupzp72yrjv3wlzhdew3leu0qxe4ynthk5td8gd4h8jmdy3g2plm3c23qq24gjtxddr5k6n9t94ku6nc236n2aekgfs4ykqw7zl

P.S. If you've already moved to the eCash layer on Yakihonne, test the plumbing and send a Nutzap my way! ⚡🥜

#Bitcoin #Nostr #Fintech #Sovereignty #Cashu #eCash #BuildOnBitcoin #Compliance