Status · Closed
Event timeline ·View schedule →
Hackathon control board
Berlin 2025, lightning edition
Lightning++ 2025
Build something real. Find collaborators, choose a challenge, ship your project, and put it in front of the bitcoin++ community.
§ Featured builds
Built in public.
Winning and featured projects from this hackathon. Explore the full gallery →
- Overall winner 2nd Overall
obfusats
Unassigned
Complicating Lightning traffic analysis using cashu mints and obfuscation
§ More winning builds
Honorable mentions & sponsor prizes
- Award winner Honorable Mentions
Cashu Wallet Connect
Unassigned
Nostr wallet connect, but with a system-level wallet that any app can connect to. Dev's don't have to build wallets, users have a simple interface for management.
- Award winner Honorable Mentions
Floresta as a Backend for NLightning
Unassigned
Trying to integrate a lightweight local chain-source for NLightning
- Award winner Honorable Mentions
LNSplit
Unassigned
Simple application to create Bolt11 URLs for each person paying a bill.
- Award winner Most Unnecessary use of OpenTimestamps in an Otherwise Serious Entry
- Award winner Best Beginner Hack
Satoshi Bot
Unassigned
Pay with sats to keep satoshi bot alive!
§ Prizes
Prize pool.
Ranked rewards for the top projects. Challenges can stack on top.
★ 1st place · grand prize
5M satoshis
Nuts are pure signal
+ 1st Overall — future Bitcoin++ ticket
1st Overall · 5M satoshis
★ 2nd place
3M satoshis
obfusats
+ 2nd Overall — future Bitcoin++ ticket
2nd Overall · 3M satoshis
★ 3rd place
2M satoshis
Glacier Wallet
+ 3rd Overall — future Bitcoin++ ticket
3rd Overall · 2M satoshis
[ Award ]
Best Use of BitVMX
2 Million Satoshis - For the project that demonstrates the best use of BitVMX. Powered by Fairgate.
Prizes
Best Use of BitVMX prize
2M satoshis
2 Million Satoshis - For the project that demonstrates the best use of BitVMX. Powered by Fairgate.
[ Award ]
Best Electrum Plugin
1 Million Satoshis - Write a plugin for Electrum.
Prizes
Best Electrum Plugin prize
1M satoshis
1 Million Satoshis - Write a plugin for Electrum.
[ Award ]
Challenge: Mint Karma
500,000 Satoshis - Make a project that helps ecash mints gain reputation by crowd sourcing attestations/ratings. Powered by Zeus.
Prizes
Challenge: Mint Karma prize
500k satoshis
500,000 Satoshis - Make a project that helps ecash mints gain reputation by crowd sourcing attestations/ratings. Powered by Zeus.
[ Award ]
Best Design
50,000 Satoshis - For the project with the most intuitive, polished, and visually appealing user experience. Powered by the Bitcoin Design Foundation.
Prizes
Best Design prize
50k satoshis
50,000 Satoshis - For the project with the most intuitive, polished, and visually appealing user experience. Powered by the Bitcoin Design Foundation.
[ Award ]
Most Unnecessary use of OpenTimestamps in an Otherwise Serious Entry
42,000 Satoshis - For the project with the most unnecessary use of OpenTimestamps in an otherwise serious entry. Powered by OpenTimestamps. https://opentimestamps.org/
Prizes
Most Unnecessary use of OpenTimestamps in an Otherwise Serious Entry prize
42k satoshis
42,000 Satoshis - For the project with the most unnecessary use of OpenTimestamps in an otherwise serious entry. Powered by OpenTimestamps. https://opentimestamps.org/
[ Award ]
Best Beginner Hack
Tickets to future Bitcoin++ event - Only eligible to teams where EVERY member is a high-school/undergraduate student OR a first-time contributor to open-source bitcoin.
Prizes
Best Beginner Hack — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Honorable Mentions
Tickets to future Bitcoin++ event - Awarded to up to 6 “honorable mentions”
Prizes
Honorable Mentions — future Bitcoin++ ticket
1 satoshis
One ticket to a future Bitcoin++ event for each winning team member.
[ Award ]
Best use of LDK
BitKey hardware wallet - For the project with the best use of LDK, giving special recognition for projects with showcase for BOLT 12 or BIP-353. Powered by Spiral.
[ Award ]
Best use of TollGate
GL-MT3000 travel routers - TollGate is a open-source, sovereign Wi-Fi infrastructure powered by bitcoin. This challenge is for the project that best uses TollGate. Project ideas doc: https://gitworkshop.dev/npub1c03rad0r6q833vh57kyd3ndu2jry30nkr0wepqfpsm05vq7he25slryrnw/relay.ngit.dev/writing-with-vibeline/tree/master/structured-transcriptions/hackathon-ideas.md
[ Award ]
Best Vibes
Vibe Medallions & Clout - For the project with the most dazzle and best vibes. Powered by Vibes Capital Management.
§ The judges
11 judges.
Scoring is handled by the assigned hackathon judges.
JUDGE #01
Erik
Cashu
JUDGE #02
Evan Kaloudis
ZEUS
JUDGE #03
Felix
Electrum
JUDGE #04
jaonoctus
ZBD
JUDGE #05
Kevin Rooke
Judge
JUDGE #06
Madeline Paech
Blockstream
JUDGE #07
Michael Markle
Bitcoin Magazine
JUDGE #08
niftynei
bitcoin++
JUDGE #09
Oleg Mikhalsky
Fulgur Ventures
JUDGE #10
Pedro Prete
Fairgate
JUDGE #11
Peter Todd
OpenTimestamps
