runin

runin 7

2026-01-29T00:00:00+00:00

Intro</h2>

Chatham housde rules. No photos/videos.</li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Demos and Presentations</h2>

The Shed</a>, a vibecoded piano practice app built by DK</li>
Vibecoding: Learn Faster, Build Career Leverage</li>
Flint</a>, a new application-based vibecoding community</li>
Surge</a>, non-custodial, on-chain bitcoin lending</li> </ul>

News</h2>

Anchorage becomes distribution partner for Tether's US stablecoin link</a></li>
BitGo raises $213M in IPO valuing it at $2B link</a></li>
OCC Granted conditional approval for national trust bank charters tied to digital assets for BitGo, Circle, Fidelity Digital Assets, Paxos, and Ripple link</a></li>
Apple Confirmed major Siri overhaul launching in 2026, transforming it into an advanced, ChatGPT-like AI assistant with enhanced capabilities link</a></li>
NVIDIA At CES 2026, declared "ChatGPT moment for physical AI" arrived; announced robot-specific chips, free AI models for robotics, Rubin platform, and Cosmos for physical AI link</a></li> </ul>

Other</h2>

@PresidioBitcoin on YouTube</a></li>
@PresidioPod</a> and @PresidioBitcoin</a> on X</li>
Email hello@presidiobitcoin.org with inquiries</li> </ul>

runin 6

2025-12-11T00:00:00+00:00

Intro</h2>

Chatham housde rules. No photos/videos.</li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Presentations and Q&A</h2>

Human Bitcoin Addresses with BIP 353</a> (Mat)</li>
The Bitcoin Merchant Community</a> (Haley)</li>
Square Bitcoin UX</a> (Angela)</li> </ul>

Startup Demo</h2>

Impressionista.fun</a> (Mat)</li>
Hivemind</a> (Bitkarrot)</li> </ul>

News</h2>

CFTC allows bitcoin, stablecoins as margin collateral in derivatives trading</a></li>
Sports apparel giant Fanatics launches prediction market with Crypto.com</a></li>
UK passes law officially recognizing crypto as third kind of property</a></li>
Kraken acquires Backed Finance in tokenization push</a></li>
Atkins confirms January launch for SEC's crypto 'innovation exemption'</a></li>
Vanguard to allow clients to access cryptocurrency ETFs</a></li>
Sony Bank to launch US stablecoin for games and anime</a></li>
Tether becomes the largest independent holder of gold in the world, with only central banks owning more</a></li>
Texas reportedly kicks off state Bitcoin reserve with $5 million IBIT purchase</a></li>
South Korea's largest exchange Upbit to pursue Nasdaq IPO after merger</a></li>
Kalshi secures $1 billion in latest funding at $11 billion valuation</a></li>
Bitcoin Core's first public third-party audit finds no major vulnerabilities</a></li>
Samourai wallet co-founder Bill Hill sentenced to 4 years in prison for unlicensed money transmitting</a></li> </ul>

Other</h2>

@PresidioBitcoin on YouTube</a></li>
@PresidioPod</a> and @PresidioBitcoin</a> on X</li>
Email hello@presidiobitcoin.org with inquiries</li> </ul>

runin 5

2025-10-23T00:00:00+00:00

Intro</h2>

Chatham housde rules. No photos/videos.</li>
Welcome, Vancouver ₿uilder</a>!</li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Presentations and Q&A</h2>

Jackson Cook on Square launch</a></li>
Joe Carlo from Pink Owl Coffee</a></li>
Josh Philippe on Fold’s</a> upcoming new app</li> </ul>
Startup Demo</h2>

Andrés Maceira on Guarana Bank</li> </ul>

Discussions Topics</h2>

What does a world with sustainable censorship-resistant transactions look like?</li>
What does bitcoin scaling look like long-term? (see thread</a>)</li> </ul>

News</h2>

Bitcoin for Signal</a></li>
Square bitcoin stickers</a></li> </ul>

runin 4

2025-09-25T00:00:00+00:00

Vote on Topics</a></h2>
Intro (15 min)</h2>

Chatham house rules. No photos/videos.</li>
Welcome, Austin ₿uilder</a>! Great to see more of these pop up around the world!</li>
Presidio Bitcoin Design Week recap</a>, Pitch Day</a> teaser, and Type 1 Summit</a></li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Kody Low on Vibecoding with Bitcoin (30 min)</h2>

Demo on how to make a bitcoin app using Replit</li>
Opportunities Replit's looked at with Bitcoin</li> </ul>
Phoenix Demo + UX Critique (25 min)</h2>

Damian will lead a demo, everyone download the app, and we'll discuss our experiences so we can provide feedback to Phoenix</a></li> </ul>

News / Discussions (40 min)</h2>

Credit cards ramping up: Fold<>Visa</a>, Coinbase</li>
EASYGROUP launches retails bitcoin app link</a></li>
PayPal ushers in a new era of peer-to-peer payments link</a></li>
OpenSats grant fuels bitcoin-safe’s secure multisig link</a></li>
ZBD’s SDK powers bitcoin earnings in mobile games, driving 124% revenue growth link</a></li>
Vibe coding searches WAY down. Bubble? Search obsolete? Link</a></li>
Figma made its design tools more accessible to AI agents link</a></li>
Save Our Wallets</a> poster and flyers</li> </ul>

Show and Tell (10 min)</h2>

Have a cool app or project that you've created? We'd love to see it!</li> </ul>

runin 3

2025-08-28T00:00:00+00:00

Vote on Topics</a></h2>
Intro (5 min)</h2>

Chatham house rules. No photos/videos.</li>
Presidio Bitcoin design week in September</a></li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Live Vibe Coding Request (20 min)</h2>

Damian vibe-code based on audience suggestions</li> </ul>
Vibe Coded App Showcase (3 min)</h2>

BLOCKADORO: A Pomodoro timer using blocks as the unit of time</a></li> </ul>

Startup Showcase (20 min)</h2>

Agicash demo and alpha announcement</li> </ul>

Discussions (60 min)</h2>

What is "Hyperbitcoinization"? Audience is encouraged to provide their own definitions!</li>
Marketing to Normies</li>
KPI's for a startup building on top of Bitcoin?</a></li>
Bitchat. How does it work? How will it evolve?</li>
Bitcoin Treasury Companies. What are they? How do they work? Will they blow up?</li>
How to build a network of off-grid solar compute</li>
Discuss all the ways you can send bitcoin!</a></li>
Jack Dorsey's Vibe Coding Tips</a></li> </ul>

News (10 min)</h2>

Block Unveils Proto Rig and Proto Fleet, Marking a New Era in Bitcoin Mining</a></li>
CorpChains announced

Google unveils L1 GCUL</a></li>
Stripe unveils L1 Tempo</a></li>
Circle unveils L1 Arc</a></li> </ul> </li> </ul>

runin 2

2025-07-24T00:00:00+00:00

Vote on Topics</a></h2>
Intro (5 min)</h2>

Chatham house rules. No photos/videos.</li>
Our 2nd event…review what we learned last time and applying to this one</li>
Presidio Bitcoin design week in September https://event.bitcoin.design</li>
Miami ₿uilder, and hoping to see more of these pop up around the world!</li>
10 second intros

Name, what you do, what you want to get out of ₿uilder</li> </ul> </li> </ul>

Vibe-Coded App Showcase (30 min)</h2>

Mat Balez Zero to Bitcoin App in under 15 minutes</li>
Damian demo'ing Sando</li> </ul>
Startup Showcase (10 min)</h2>

David Bryson checkout.tech demo</li> </ul>

Discussions (60 min)</h2>

“maybe human money and machine money will be totally different things” https://x.com/sama/status/1945541270438646270</li>
Why build with bitcoin vs. stablecoins?</li>
Future of bitcoin payment protocols, tech platforms</li>
How to untangle payment protocol mess</li>
Pick a big tech company/product…brainstorm how bitcoin could be added to it and add value</li>
Mixing digital and physical world: Integrating vibe-coded apps with billboards</li> </ul>

News (15 min)</h2>

Simple Proof. How does it compare to OpenTimestamps? Why hasn’t a product like this found product-market fit yet? https://stacker.news/items/1041737/r/dk</li>
Coinbase integrates farcaster … can an everything-app like Base catalyze payments? https://x.com/base/status/1945624674656030985</li>
Nevada the new Delaware? https://x.com/a16z/status/1942974830774829428</li>
Big beautiful bill impact on bitcoin mining and taxes https://x.com/WilsonMining/status/1945179417279652036</li> </ul>

runin 1

2025-06-26T00:00:00+00:00

Vote on Topics</a></h2>
Intro (10 min)</h2>

Chatham House Rules — No photos/videos</li>
This is our first ₿uilder! We’re very open to feedback and ideas on how to make these events great. Feel free to suggest ideas during the meetup or afterwards</li>
Define ₿uilder and purpose for starting this event series</li>
Anyone can be a ₿uilder! Vibe coding makes building apps approachable and intuitive</li>
Quick Show of Hands

Who works for big tech? PM? Designer? Other?</li>
Who has vibe coded before? Integrated bitcoin?</li> </ul> </li>
10 Second Intros

Name</li>
What you do</li>
What you want to get out of ₿uilder</li> </ul> </li> </ul>

Vibe-Coded App Showcase</h2>

Anyone?</li> </ul>
Startup Showcase</h2>

Agicash</li> </ul>

Bitcoin Products (20 min)</h2>

Block rolls out Bitcoin payments on Square</a> at the Bitcoin 2025 Conference in Las Vegas

Steak N Shake reports 50% savings on processing fees when using BTC</a></li> </ul> </li>
Square is earning 9.7% returns</a> on its C= Lighting Service Provider

Bitrefill reports 3.5% returns</a></li>
Amboss launches Rails</a>, a self-custody Bitcoin yield service</li> </ul> </li>
Coinbase Credit Card preannouncement</a>. 2%–4% back in BTC depending on assets held</li>
Start9 moves Knots to the Main Registry</a> Previously in the Community Registry

Knots at 13% market share</a></li> </ul> </li>
Home equity → bitcoin: Horizon</a> and Sovana</a></li>
Lightning Wallet Market in Japan</a> 64%: Wallet of Satoshi</li>
Foundation will release Passport Prime in Q3</a></li>
COLDCARD Co-Sign (CCC)</a></li>
Bitkey introduces Security Hub</a></li>
Ledger sunsets Nano S</a></li>
Xverse integrates Lightning via Sati</a></li>
Wallet of Satoshi non-custodial wallet available again in the US</a></li>
Blitz</a>: first Spark mobile wallet</li>
Magic Eden partners with Spark for faster and cheaper BTC settlements</a></li>
Cake wallet adds Payjoin v2</a></li> </ul>

Regulatory (4 min)</h2>

Federal Housing Director orders Fannie Mae to consider Crypto</a> as an asset for obtaining mortgages</li>
Clarity Act heads to House floor for Vote</a>

BRCA included in market structure bill, the Clarity Act</a></li>
Save our Wallets</a></li> </ul> </li> </ul>

Bitcoin Design (30 min)</h2>

₿-only convention for displaying bitcoin quantities

BIP-177</a> describes a new approach to bitcoin units that deprecates both the use of decimals and the usage of “sats/satoshis”</li>
New page added to Design guide</a> with proposed best practices</li>
Boardwalk Cash is an example of a product leading and embracing the change</a></li> </ul> </li>
Seedless is safer debate</li> </ul>

Discussions (40 min)</h2>

The emergence of vibecoding</li>
TradFi payments vs. stablecoins vs. bitcoin: Where does bitcoin separate itself?</li>
Mixing digital and physical: Integrating vibe-coded apps with billboards</li> </ul>

Miscellaneous (1 min)</h2>

Presidio Bitcoin Quantum Summit: Applications Open</a></li>
Presidio Bitcoin Design Week in September (more info coming soon)</li>
Miami ₿uilder — and hopes for more around the world!</li> </ul>

Wrapping Up (5 min)</h2>

What went well?</li>
Areas of improvement for future meetups</li> </ul>

runin

runin 7

runin 6

Intro</h2> Chatham housde rules. No photos/videos.</li>

runin 5

Intro</h2> Chatham housde rules. No photos/videos.</li>

Presentations and Q&A</h2> Jackson Cook on Square launch</a></li> Joe Carlo from Pink Owl Coffee</a></li> Josh Philippe on Fold’s</a> upcoming new app</li> </ul> Startup Demo</h2> Andrés Maceira on Guarana Bank</li> </ul>

Startup Demo</h2> Andrés Maceira on Guarana Bank</li> </ul>

Discussions Topics</h2> What does a world with sustainable censorship-resistant transactions look like?</li>

runin 4

Vote on Topics</a></h2> Intro (15 min)</h2> Chatham house rules. No photos/videos.</li>

Intro (15 min)</h2> Chatham house rules. No photos/videos.</li>

Kody Low on Vibecoding with Bitcoin (30 min)</h2> Demo on how to make a bitcoin app using Replit</li>

Show and Tell (10 min)</h2> Have a cool app or project that you've created? We'd love to see it!</li> </ul>

runin 3

Vote on Topics</a></h2> Intro (5 min)</h2> Chatham house rules. No photos/videos.</li>

Intro (5 min)</h2> Chatham house rules. No photos/videos.</li>

Live Vibe Coding Request (20 min)</h2> Damian vibe-code based on audience suggestions</li> </ul> Vibe Coded App Showcase (3 min)</h2> BLOCKADORO: A Pomodoro timer using blocks as the unit of time</a></li> </ul> Startup Showcase (20 min)</h2> Agicash demo and alpha announcement</li> </ul>

Vibe Coded App Showcase (3 min)</h2> BLOCKADORO: A Pomodoro timer using blocks as the unit of time</a></li> </ul> Startup Showcase (20 min)</h2> Agicash demo and alpha announcement</li> </ul>

Startup Showcase (20 min)</h2> Agicash demo and alpha announcement</li> </ul>

Discussions (60 min)</h2> What is "Hyperbitcoinization"? Audience is encouraged to provide their own definitions!</li> Marketing to Normies</li>

runin 2

runin 1

Wrapping Up (5 min)</h2> What went well?</li> Areas of improvement for future meetups</li> </ul>

Discussions Topics</h2>

What does a world with sustainable censorship-resistant transactions look like?</li>
What does bitcoin scaling look like long-term? (see thread</a>)</li> </ul>

News</h2>

Bitcoin for Signal</a></li>
Square bitcoin stickers</a></li> </ul>

Show and Tell (10 min)</h2>

Have a cool app or project that you've created? We'd love to see it!</li> </ul>

Wrapping Up (5 min)</h2>

What went well?</li>
Areas of improvement for future meetups</li> </ul>