Bitcoin 4 Open Source

Yes, B4OS is 100% free. There are no registration fees, paid materials, or hidden costs of any kind. The program is funded by the Satoshi Library to make professional-quality Bitcoin education accessible to Spanish-speaking developers.

Absolutely. All code developed as part of the B4OS program is open source and follows FOSS principles. Participants contribute to real open source projects in the Bitcoin ecosystem, including Bitcoin Core and Lightning Network.

B4OS focuses on Bitcoin Core and Lightning Network development. You'll learn P2P architecture, transaction validation, payment channels, and contribute to real projects. We only cover Bitcoin and its ecosystem.

You don't need Bitcoin experience, but you do need solid programming knowledge. You should have experience with at least one language (Python, C++, Rust, JavaScript), Git, and command line. We'll teach you all the Bitcoin-specific content from scratch.

No, attending the residency is not mandatory. If you attend, you'll have the opportunity to meet other participants and mentors in person, work as a team, and learn from them.

We recommend 5-10 hours weekly during the program's duration. This will be distributed across time for Socratic seminars, preparatory readings, challenges, and development practice hours.

There will always be individual tasks during the program, whether it's research work, development, or delivering code challenges. If you're actively working on a specific project, you'll have the freedom to specialize, but you won't have the freedom to not work on a project.

Yes, after the first 5 weeks you can specialize by choosing between: Bitcoin Core Protocol Development, Lightning Network Development, or Application Development. Your mentor will help you choose according to your professional interests.

Activities and challenges are primarily done individually, but there are occasions when they will be done in groups. If you have questions, you can contact your mentor or the community in the Discord channel.

We do not record the seminars to maintain a safe and private learning environment. Instead, we provide detailed post-session summaries, supplementary study materials, and make-up sessions for special cases.

We will provide the necessary environments to work on the various projects that will be developed during the program. If you need to install any tools locally, we will do it together.

Tangible and verifiable achievements: Minimum of 3 accepted contributions to Bitcoin Core or Lightning Network, a functional personal project, direct connections with senior Bitcoin developers, and a verifiable certificate with your specific contributions.

Direct partnerships with Bitcoin companies: Guaranteed interviews for the top 20% of graduates, exclusive job board for students, personal references from mentors, and networking events with Bitcoin recruiters.

There are no geographic restrictions. B4OS is open to developers from any country who speak Spanish. Minimum age: 18 years. Schedules are coordinated considering the diversity of time zones of the participants.

Multiple channels available: Main email hola@b4os.dev, Discord community for direct chat, GitHub Issues for technical reports, and regular feedback sessions during the program.