Bitcoin Dev Project

100% free and open-source resources for bitcoin devs.

₿OSS = bitcoin open-source software

[Bitcoin Dev Project @Bitcoin_Devs]

The @ChaincodeLabs BOSS Challenge may be over, but the building continues! Check out these incredible portfolio projects that participants worked on during the program 👇

https://t.co/gMZ83HmeGC

[Bitcoin Dev Project @Bitcoin_Devs]

@lmloo21 @niftynei @OsloFF it's the socks!

[Bitcoin Dev Project @Bitcoin_Devs]

👀 @niftynei looking very COOL and STYLISH on stage at @OsloFF

[Bitcoin Dev Project @Bitcoin_Devs]

@jolah99 @OsloFF Just added to the list 🙂

[Bitcoin Dev Project @Bitcoin_Devs]

Calling all freedom tech builders! We are seeking volunteers for a live design review at the @OsloFF Making Freedom Tech Beautiful workshop.

Face it. Freedom tech only matters if people can actually use it. Even the most powerful applications fall short if they feel confusing or too technical.

Watch @MouxDesign of @bitcoin_design and our very own @satsie use AI to apply tried and true UX principles and draw inspiration from award winning design. Participants will leave with a Claude skill that preserves the exact process from the workshop.

Make your app as empowering as the decentralized, censorship resistant technology it is built on.

Make it something individuals all over the world can understand, adopt, and rely on.

Builders need not be physically present for the workshop. Priority given to projects funded by @HRF. Does this sound like something you're interested in? Reply to this post or send us a DM!

[Bitcoin Dev Project @Bitcoin_Devs]

@jolah99 @OsloFF We can add you to the list of interested projects! Can you share a link to your project? (it must have a UI)

[Bitcoin Dev Project @Bitcoin_Devs]

Transcripts from the recent Core Dev meeting are now up on @btctranscripts

[Mike Schmidt @bitschmidty]

Earlier this month, many Bitcoin Core developers met up in Barcelona, Spain as part of their regular twice-yearly in person meetings.

Attendees volunteered to take notes on the unconference-style sessions and the transcripts have been added to the BTC transcripts website:

- AI session
- ASMap
- BIP324 and group policy options
- BIPs editors
- Bitcoin TUI
- CAmount
- CDash
- Coins cache
- Erlay redesign
- External interfaces
- GUI repo
- Inventory send queue
- Kernel (laundry list, overview, session)
- Libevent
- Logging
- Modern crypto library
- Mutation testing
- Package relay
- Post-cluster mempool
- Private broadcast
- QML (planning, update)
- Silent payments
- Static builds
- SwiftSync
- TCP hole punching
- Template hash

Additional informal discussions, code reviews, working groups, or other sessions occurred on:

- Quantum
- Determinism in testing
- Testnet5
- MEVPool
- Wallet priorities
- Silent payments
- Coins caching
- Peer observer
- ASMap updates
- IPC updates
- Utility binaries
- Bitcoin Kernel
- QML GUI
- Deterministic simulation testing
- AI assisted code review
- BIP39 import
- BIP54
- Fuzz testing
- Mutation testing
- Static builds
- FIBRE updates
- Parallel block input fetching

https://t.co/Qr6UUz21Cg

[Bitcoin Dev Project @Bitcoin_Devs]

@ECBSJ @OsloFF We haven’t been given any information that it will be but will let you know if we hear otherwise!

[Bitcoin Dev Project @Bitcoin_Devs]

Last week as part of @hack4_freedom, @TuedonTuoyo gave a presentation on how to decode raw transaction hex 🔍

Learning how each byte corresponds to a specific type of data is a great way to level up your understanding of the #bitcoin protocol.

He's now given this talk twice, previously at BitDevs Abjua. Where would you like to see this presentation next? Let us know!

[Hack4freedom @hack4_freedom]

🔥 Day 5 of #Hack4Freedom Lagos went deep into the guts of Bitcoin.
@TuedonTuoyo from @Bitcoin_Devs broke down:

🔹 Decoding raw Bitcoin transaction hex
🔹 Understanding every field that makes up a Bitcoin transaction
🔹 Real examples – live, line by line

This is the kind of hands-on knowledge that separates builders from spectators.

[Bitcoin Dev Project @Bitcoin_Devs]

@hack4_freedom @TuedonTuoyo Thank you for giving @TuedonTuoyo and @satsie the opportunity to present! They had so much fun diving into the technicals with the hackathon participants.

We look forward to seeing how the projects turn out!

[Bitcoin Dev Project @Bitcoin_Devs]

A lot of effort went into putting this one together. Give it a read and learn about some of the crazy ways you can bend bitcoin Script 😎

[Bitcoin Dev Project @Bitcoin_Devs]

https://t.co/a8zICYPAVh

[Bitcoin Dev Project @Bitcoin_Devs]

@TuedonTuoyo

[DADA DEVS @DadaDevs]

We're proud to highlight two incredible self-directed projects from our Dada Devs Peer Leads and Developers in the 2026 BOSS Challenge!

@Su_Githaiga built a Lightning fee-bumping service that tackles one of the most frustrating pain points in the Lightning Network — stuck commitment transactions. Her tool leverages anchor outputs and CPFP (Child-Pays-For-Parent) to get those transactions confirmed, bringing real utility to everyday Lightning users.
GitHub Link: https://t.co/4zyFxsXIeF

@Its_nkathake created Know Your Coin History, a transaction graph explorer that lets you trace the full ancestry of your Bitcoin coins. From recursive UTXO tracing and wallet fingerprinting heuristics to BIP-329 label exports — all running against your own local Bitcoin Core node or Electrum server — it's a powerful tool for privacy-conscious Bitcoiners.
GitHub Link: https://t.co/RvYT2lwGHX

Two projects. Two builders. Both solving real problems in the Bitcoin ecosystem. 💡

Give them a follow and check out their work!
#BOSS #opensource #dadadevs

[Bitcoin Dev Project @Bitcoin_Devs]

Happy Bitcoin Pizza Day! 🍕

On this day in 2010 Laszlo Hanyecz traded 10,000 bitcoins for 2 pizzas!

It may seem wild to think about now but had it not been for people like him that were willing to use bitcoin as a medium of exchange we may not be able to transact with bitcoin the way we can today.

What’s the first thing you ever bought with bitcoin?

If you’ve never spent your bitcoin, get a pizza today! It’s is a nice way to honor Laszlo and makes for an unforgettable first transaction 🙂🍕

[Bitcoin Dev Project @Bitcoin_Devs]

@bitschmidty Thanks Schmidty for sharing!

[Bitcoin Dev Project @Bitcoin_Devs]

@RajarshiMaitra Thanks for sharing Raj!

[Bitcoin Dev Project @Bitcoin_Devs]

@boyacaxa Thanks for checking them out and for sharing!

[Bitcoin Dev Project @Bitcoin_Devs]

Contributions to ddust by harismuzaffer and @sidharth_2k04

Contributions to ddust, an experimental tool created by bubb1es71 that implements the BIP-451 Dust UTXO Disposal Protocol. Finds and safely disposes of “dust attack” UTXOs in on-chain, descriptor-based wallets.

🔗 https://t.co/6F8oyVh82B

[Bitcoin Dev Project @Bitcoin_Devs]

The @ChaincodeLabs BOSS Challenge may be over, but the building continues! Check out these incredible portfolio projects that participants worked on during the program 👇

https://t.co/gMZ83HmeGC

[Bitcoin Dev Project @Bitcoin_Devs]

Reorg Playground by @noahjoeris

Tool for exploring forks, tip divergence, and reorg behavior across multiple node backends.

🔗 https://t.co/vTo1RAkmTV

[Bitcoin Dev Project @Bitcoin_Devs]

@ClioBitcoinBank @CubistRoy