B4OS — What you get
Program benefits
B4OS is not just technical training. It is a complete support system for you to transition to a full-time Bitcoin open source contributor.
Subsistence grant
Monthly funding for the entire duration of the program so you can focus 100% on learning and contributing without financial worries.
1:1 mentorship with active contributors
Weekly sessions with developers who have merged PRs in Bitcoin Core, LDK, LND or CLN. Real feedback from those already inside the ecosystem.
Weekly code review
Your code is reviewed every week by at least two mentors. You will learn the standards and criteria that real maintainers use to accept contributions.
Global alumni network
Upon graduating you join the private B4OS alumni network: developers in 12+ countries active in Bitcoin Core, Lightning Labs, Spiral, Chaincode and more.
Access to international conferences
We cover travel and accommodation so you can present your work at Bitcoin Conference, TABConf, Adopting Bitcoin or other selected conferences.
Recognized certification
The B4OS certificate is recognized by ecosystem employers. Many of our graduates go directly to positions at Spiral, Lightning Labs or Chaincode.
Support for your first job
The B4OS team actively connects graduates with job opportunities at organizations that fund full-time open source work.
Curated technical material
Access to the Librería de Satoshi technical resource library: session recordings, readings, exercises and a history of real code reviews.
Apply to B4OS
Applications for the next cohort are open. Limited to 8 participants per cohort.