2.0

Presented by

Stacker Space Guadalajara Bitcoin Lightning BitDevs GDL PlebLab

The build day is back.

A Bitcoin hackathon in Guadalajara built around practical workshops, Bitcoin Lightning payments, and tools that support local adoption.

Date Thursday, August 20, 2026
Time 9:00 AM Guadalajara time
Venue Stacker Space — Guadalajara
Sponsor the hackathon

Overview

This is a build day.

After bringing Bitcoin builders together in Guadalajara in 2024, Hackalajara is back for a bigger second chapter.

Come build around Bitcoin, Lightning, payments, and local adoption. Bring an idea, a skill, a problem, or just the curiosity to start.

Join solo, bring a team, or meet your crew there.

How it works

One room. One build day. A clear path to demo.

  1. 1Apply

    Join solo, bring a team, or meet your crew in Guadalajara.

  2. 2Learn

    Use the remote workshops and builder resources to get moving.

  3. 3Build

    Ship something useful around Bitcoin, Lightning, payments, or local adoption.

  4. 4Demo

    Present Friday at Startup Day, followed by winners and the celebration.

Who should apply

Bring a skill. Build with the room.

Developers Designers Founders Students Product people Bitcoiners Lightning builders Learn-by-building

You do not need to have everything figured out before you show up. You just need to be willing to build.

The local community

Built by Bitcoiners in Guadalajara.

Meet the people learning, sharing, and building around Bitcoin and Lightning in Guadalajara.

Follow the community@btc_ln_gdl Join the Signal group

1 / 3

Community photos from Bitcoin & Lightning Guadalajara.

What to build

Make Bitcoin more useful, real, and local.

Grand prize

Best overall Bitcoin build

500,000 sats

ShockNet prize

Best Project Using CLINK

50,000 sats

CLINK GitHub

Workshops

Builder sessions for Bitcoin, Lightning, and local adoption.

Practical sessions to help teams understand the tools, ask better questions, and start building faster during Hackalajara 2.0.

Justin from ShockNet

Workshop speaker

Justin

Building with CLINK

  • Date Thursday, August 20, 2026
  • Time TBA
  • Format Remote workshop

Presented by

Featured session

Building with CLINK

A hands-on remote workshop for builders interested in integrating CLINK into Bitcoin, Lightning, Nostr, payments, and local adoption projects. The session will make it clear where CLINK fits, what teams can build with it, and how to start experimenting during the hackathon.

Hackathon support

CLINK Support During the Hackathon

Builders working on CLINK integrations will have access to remote support from Justin during the hackathon via Signal. This gives teams a direct way to ask questions, troubleshoot, and get help as they build.

Featured session

Build Bitcoin Apps with Alby

A practical remote workshop for builders who want to add Bitcoin payments to apps. Moritz will introduce Alby Hub, Nostr Wallet Connect, and Alby's open-source developer tools, showing teams how wallets and apps can connect without locking into a proprietary platform.

Hackathon resources

Alby Builder Resources During the Hackathon

Teams building with Alby can use the official developer resources and guides for setup, integration examples, and practical help as they add Lightning payments to their projects.

Developer tools Alby guides
Super Testnet

Workshop speaker

Super Testnet

Coinjoin Workshop — Emessbee

  • Date Thursday, August 20, 2026
  • Time TBA
  • Format Remote workshop

Website

Featured session

Coordinatorless Coinjoins with Emessbee

Learn how to write coinjoin software utilizing Super Testnet's Emessbee protocol, where coinjoins happen without the help of a coordinator.

Workshop resources

Coinjoin Workshop Repository

Follow the workshop materials, source code, demos, and protocol notes from Super Testnet's open-source coinjoin workshop.

Workshop GitHub

Mentors & judges

Builder feedback from people who know the work.

Hackalajara teams will get practical guidance during the build day and thoughtful feedback before demos.

Car

Friday follow-up

Demos, winners, and the celebration.

The build day continues Friday with public demos and a celebration for the teams.

Hackalajara 2.0 Demos

Teams present demos at PlebLab Startup Day

Friday, August 21, 2026 · 3:00 PM

Startup Day Guadalajara
Celebration party

Hackathon celebration and winners announcement

Friday, August 21, 2026 · 7:00 PM

Gibbons

Plan your visit

Where to Stay in Guadalajara

Get familiar with the neighborhoods, places to stay, and some of the best things to see while you are here.

Neighborhood and hotel guide Find the right area for your stay Explore Centro, Colonia Americana, Zapopan, Tlaquepaque, and more. Guadalajara cathedral and city skyline Video guide Top Things to Do in Guadalajara Watch the Jalisco travel guide from the one-minute mark.

Apply to build

Bring your laptop. Bring your ideas. Bring your friends.

Thursday, August 20, 2026 · Stacker Space — Guadalajara

Sponsor interest form
Hackalajara 2.0 Aug 20 · Guadalajara