Chaincode Labs

Nominations are open for the 2026 Bitcoin Research Prize! Submit papers that made an impact on Bitcoin or Lightning published after 2022: Have you (co)authored any papers that fit this criteria? Submissions are anonymous 😉

Welcome to Chaincode, @jonhbit

The ₿OSS Challenge is designed to get you started in a career in open source

Deadline to apply is tomorrow. Change your life in 2026.

RT @ihate1999: Looking to kick start your Bitcoin Open Source career? Sign up for the 2026 ₿OSS program now 📌

Only 3 days left to apply for the 2026 ₿OSS Challenge 🚨 Applications close on December 31st, and once you’ve applied, you’ll have until January 12th to complete the @savingsatoshi challenge. Learn more and apply to join the cohort here:

RT @shaibearary: @ChaincodeLabs ‘s boss program is great! ( from an alumni that want to do it again😂🤣) Links below and tomorrow we will have an interview with @keypleb from @CodeOrangeDevs talking about orange pill devs in Asia at @RoxomTV

RT @Bitcoin_Devs: MacGyver left the start up life to work on silent payments. Do you crave professional freedom to work on the things you believe are most impactful?

RT @Bitcoin_Devs: Meet David: Before signing up for the BOSS Challenge, David was an algebra teacher. After it he got a grant from @OpenSats and now he’s a full time bitcoin open-source developer working on compact block relay at @lclhostresearch.

RT @Bitcoin_Devs: Want a career in bitcoin open source but feeling intimidated? @sangaChau and MacGyver talk about their experience on the @stephanlivera podcast transitioning from the corporate world to bitcoin open source development. Join us for the and change your career in 2026.

RT @PresidioBitcoin: New 21 in 21 🎙️ @HBerkoe interviews David Gumberg about how the @ChaincodeLabs ₿OSS Challenge helped him go from a bitcoin-curious algebra teacher to Bitcoin Core contributor at @lclhostresearch. The next 3-month virtual cohort starts in January. Applications close Dec 31.

RT @andreneves: If you’ve ever wanted to work as a developer in #Bitcoin, this is your BEST chance to get started! I am a product of these same open source teaching programs and seminars by @ChaincodeLabs (back in 2018) — it changed my career path in ways I hadn’t thought possible. I cannot recommend the BOSS Challenge enough! JUST SIGN UP ALREADY 🚀🫡🤞

RT @moneyball: Great explanation for the value of @ChaincodeLabs' ₿OSS Challenge We need more developers working on bitcoin.

RT @spiral_xyz: As Charles Dickens once said, “This is a three-month educational program that helps people get into bitcoin development full-time. It starts with education, introduces challenges, and then, if you excel, @ChaincodeLabs will help you find a job in bitcoin. It kicks ass, man.”

RT @bitshala_org: Meet @BeulahEvanjalin , 2025 ₿OSS alumni 👋 A math and cryptography enthusiast, Beulah participated in 2025 ₿OSS challenge, where she contributed to Bitcoin secp library and FROST. Now funded by @secondhq , She is working on nested MuSig2 to enable more flexible, secure, and private Bitcoin multisig.

RT @miketwenty1: Y'all Make 2026 the year you get more technical with Bitcoin. If you've been thinking about working in the Bitcoin industry, set a New Year's goal to level up: learn how Bitcoin works, build skills, and plug into people who can help. TABConf is encouraging folks to join the @ChaincodeLabs BOSS program, and the @tabconf cohort is here for extra support, encouragement, and mentorship along the way. You have nothing to lose and everything to gain. Sign up for the BOSS program and be part of the TABConf cohort this year:

RT @stephanlivera: Start your career in Bitcoin with the ₿OSS Challenge - Satsie, Macgyver and Sangbida | SLP706 @satsie, Macgyver and Sangbida join me to share their insights on contributing to Bitcoin Open Source Software. From challenges to grants, community, and career growth, we explore the mindset needed to thrive in open source. (00:00) - Intro (01:21) - What is the @ChaincodeLabs BOSS challenge?; Sangbida & Macgyver’s journey with BOSS (04:07) - Participant’s motivation & experiences with the BOSS program (09:00) - What are the career opportunities for Bitcoin developers after the BOSS program? (12:57) - Challenges of learning & working in open source (16:53) - What are Sangbida & Macgyver currently working on? (18:25) - What is it like applying for grants and funding in open source? (23:12) - The role of community engagement in open source (25:16) - Skills and mindset required to thrive in open source (30:23) - Working in Bitcoin - passion vs. reality (38:13) - Closing thoughts

RT @btrust_builders: “The ₿OSS challenge really helped me think deeply about Bitcoin and learn more about it and open‑source development.” @Camilla_rhi, 2025 ₿OSS alumna. Meet Rita, a Lagos🇳🇬‑based software developer and one of the 2025 ₿OSS alumni. Before joining the program, Rita already had over three years of experience building and improving fintech and logistics solutions. But her time in the ₿OSS program became a turning point. Through the program, she deepened her understanding of Bitcoin technologies and the Lightning Network, contributing to major open‑source projects like LDK Node, Warnet, and CircuitBreaker; critical components that underpin the scalability and resilience of Bitcoin’s Lightning ecosystem. Now, as a @btrustteam grantee, Rita is continuing her work full‑time on LDK Node and Warnet, focusing on improving transaction lifecycle management, payment tracking, and developer tools to make Bitcoin infrastructure even more reliable and user‑friendly. Rita’s journey is a great example of what’s possible through the BOSS Challenge, created by @ChaincodeLabs. This is a structured, hands‑on program designed to help developers start building open‑source Bitcoin projects and grow into funded contributors. Ready to build your own Bitcoin story? Applications are ongoing for the 2026 BOSS cohort. If you’re a developer passionate about learning, contributing, and building for Bitcoin, this is your chance. 🗓️ Applications close December 31, 2025 🗓️ Program starts the week of January 12, 2026 🔗 Learn more about the program: 📝 Apply for the 2026 cohort:

RT @Bitcoin_Devs: New Year, New You, New Career in Bitcoin Don’t miss your chance to get your dream job working on Bitcoin. Get funded by Spiral, BTrust, Blockstream, Brink and others to contribute to something meaningful. Apply for the BOSS Challenge today

RT @matbalez: "bitcoin is not as inevitable as we think it is" true words @satsie, true words thank you to everyone who works on ₿OSS every day we need more

There are about ~150 full-time contributors in all of bitcoin open source software (₿OSS) development and only ~40 of them work on Bitcoin Core. Bitcoin is not bulletproof. It needs constant maintenance and attention.

Claim your spot in the ₿OSS Challenge at and start your career in bitcoin open source development in 2026.