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§01 · EVENT BADGES

13 editions attended.

📜 ’26
Toronto consensus edition
🦒 ’26
Nairobi open source edtion
🦫 ’26
Vegas villain edition
🔑 ’26
Floripa exploits edition
🧨 ’25
Taipei sovereignty edition
⚡ ’25
Berlin lightning edition
🌉 ’25
Istanbul scaling edition
⛪ ’25
Riga privacy edition
👙 ’25
Austin mempool edition
🌴 ’25
Floripa hack+play edition
🥷 ’24
Berlin e-cash edition
🤝 ’24
Buenos Aires payments edition
🍰 ’23
Austin layer-2 edition

§02 · HACKATHON PROJECTS

Built at the hackathon.

§03 · TALKS & PANELS

On stage.

Full archive →
hackathon · Floripa 2026

Hackathon Finals

Round robin hackathon judging session. Finalists will be announced after the debate.

45m agenda ▶ watch
hackathon · Floripa 2026

Hackathon Finalists Announced

Round robin hackathon judging session. Finalists will be announced after the debate.

15m agenda
hackathon · Floripa 2026

Hackathon Expo

Round robin hackathon judging session. Finalists will be announced after the debate.

1h 15m agenda
hackathon · Taipei 2025

Hackathon Finals

Who will take home the top sats? Join us for the hackathon finals presentation where the teams advancing out of the expo compete to win bitcoin++’s first sovereignty hackathon

45m agenda ▶ watch
hackathon · Taipei 2025

Hackathon Judging Expo

First round of hackathon judging. Judges will walk around between all projects in a science fair style exposition. Top projects will advance to participate in the finals presentation on the last day.

1h 15m agenda
workshop · Taipei 2025

Building Sovereign Banks with Fedi

Banks used to be great... then everything changed when the surveillance state attacked. Pt. 1 Learn about building self-sovereign community banks with federated Chaumian ecash. Pt. 2 Hands on workshop to build a fedimint wallet with the Fedimint SDK.

1h agenda ▶ watch
panel · Berlin 2025

Scaling Lightning

Scaling Lightning: Running a lightning node is essentially plug and play. Self-sovereign bitcoin and lightning payments have never been easier. So why are blocks so empty? Is this evidence of the lightning network working as intended? Or is the network growth limited by technical, UX, and social challenges?

45m agenda ▶ watch
hackathon · Istanbul 2025

Hackathon Finals

Who’s the fastest scaling hacker in Istanbul? We’ll take the top 5 teams from the Expo and give them the opportunity to impress the judges live.

45m agenda ▶ watch
hackathon · Istanbul 2025

Hackathon Expo

Showcase your work in this round-robin style of judging

2h 30m agenda
hackathon · Istanbul 2025

Hacking Time

You don’t have much time, what are you building?

3h agenda
hackathon · Istanbul 2025

Hackathon Ideas Workshop

Optional!! Need a good idea to hack on? Come ideate with the btc++ staff and hackathon veterans.

15m agenda
hackathon · Istanbul 2025

Hackathon Team Building

Optional!! Come find a team to work with. We’ll help everyone find someone else to work with, and then you can start making plans for what you’ll build over lunch.

15m agenda
hackathon · Istanbul 2025

Hackathon Kickoff

Who’s the fastest scaling hacker in Istanbul? We’ll take the top 5 teams from the Expo and give them the opportunity to impress the judges live.

15m agenda
hackathon · Riga 2025

Hackathon Finals

Top finalists who make it out of the Expo will be invited to present their projects to compete for the top prize.

45m agenda ▶ watch
hackathon · Riga 2025

Hackathon Expo

Showcase of all the hackathon projects. Round robin judging will happen during this period.

1h agenda
hackathon · Riga 2025

Hacking Time

You don’t have much time to work at this bitcoin++, make the most of it

2h agenda
hackathon · Riga 2025

Hackathon Ideas Workshop

Optional!! Need a good idea to hack on? Come ideate with the btc++ staff and hackathon veterans.

15m agenda
hackathon · Riga 2025

Hackathon Team Building

Optional!! Come find a team to work with. We’ll help everyone find someone else to work with, and then you can start making plans for what you’ll build over lunch.

15m agenda
hackathon · Riga 2025

Hackathon Kickoff

Who’s the fastest privacy hacker in Riga? We’ll take the top 5 teams from the Expo and give them the opportunity to impress the judges live.

15m agenda
hackathon · Floripa 2025

Hackathon Kickoff

Rules and regulations for the hackathon

30m agenda
workshop · Floripa 2025

How to Win a Hackathon

Pt. 1 - Talk: Project showcase & guide on how to turn an idea into a winning hackathon project Pt. 2 - Workshop: Bootstrapping a project with AI tools

1h agenda ▶ watch
hackathon · Berlin 2024

Hackathon Kick-off

Get an overview of the prizes and judging criteria, and find your team to start working at the hackathon kickoff session.

30m agenda ▶ watch
talk · Berlin 2024

How to build a Fedimint wallet in 20 minutes (without Rust)

The Fedimint Web SDK just launched. Join Alex Lewin for a deep dive into what it enables for ecash payments on the web.

45m agenda ▶ watch
workshop · Buenos Aires 2024

Fun with Lightning - How to Win Every Bitcoin Hackathon

Pt. 1 - Talk: Project showcase & guide on how to turn an idea into a winning hackathon project Pt. 2 - Workshop: Setting up a template hackathon project

1h agenda
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