We don’t believe in education as a speech.
🧑🏫 ¡ We believe in education as action !
2025 at Librería de Satoshi and B4OS, our purpose was lived through:
teaching, building, traveling, and collaborating in Bitcoin open source.
This is our route and the test.👇
Almost 1,000 people enrolled in our courses, and 322 students from 40 countries graduated in 2025 at Librería de Satoshi.
Behind those numbers: 27 courses, 99 classes, and 15 educators committed to teaching Bitcoin properly.
From the basics of self-custody and privacy, to Lightning for developers, Bitcoin Script, Nostr, and real tools from the ecosystem.
Learning Bitcoin means gaining judgment, responsibility, and digital sovereignty.
With B4OS, we went beyond courses.
Over 300 applicants, programming challenges, technical selection, and real support to contribute to open source.
Today, 17 Spanish-speaking developers are already adding value as active contributors.
Training builders is not about teaching theory: it’s about building together.
We were present at more than 10 key conferences and events across the global ecosystem:
Oslo Freedom Forum (@OsloFF), Bitcoin Global Summit (@HRF), BTC++ Lightning (@btcplusplus), TabConf (@tabconf), LABITCONF (@labitconf), Adopting Bitcoin (@AdoptingBTC), BitCoast (@BitCoastFest), Accelerating Bitcoin (@acceleratingbtc), Africa Bitcoin Conference (@AfroBitcoinOrg), and Btrust Dev Day and Gathering (@btrustteam).
Learning, sharing, and connecting—we took part in more than 25 talks and panels.
We live Bitcoin as a community. That’s why we organize and support BitDevs:
🌎 BitDevs Latino online for the Spanish-speaking dev community
🇦🇷 Buenos Aires and Córdoba → @BitdevsBA @BitcoinSchoolAR
🇨🇱 Santiago → @santiagobitdevs
🇲🇽 Mexico City and Guadalajara →@LaCasaDeSatoshi @HackerGarage
🇪🇸 Madrid and Barcelona → @BitDevsBCN @BitDevsMadrid
🇸🇻 El Salvador
Grantees and developers from Librería de Satoshi crushed it at the 2025 hackathons:
🥇 1st place at the MIT Hackathon @MITBitcoinClub
🥈 2nd place at the BTC++ Hackathon @btcplusplus
🥈 2nd place at the Chaincode Warnet Hackathon
🔥 We took part in Time2build by @Breez_Tech with the incentives wallet, and this month we’ll have the results.
Proof of work, not speeches.
Our engineering team kicked off the development of a modular, open-source educational platform for Bitcoin.
We’re building our own infrastructure: a learning platform and an incentives wallet integrated throughout the entire learning journey.
We don’t just teach open source — we practice it.
The ecosystem is built together.
None of this is done alone.
We’re grateful for the support and collaboration of @btrustteam and @FBI_Bitcoin for their financial backing, @ChaincodeLabs for the technical support through programming challenges, @btcplusplus for creating community spaces, and @BitcoinAR for helping amplify our message.
And to many others across the Bitcoin and open-source ecosystem who, even if we can’t name them one by one, make this work possible. Thank you for building and decentralizing Bitcoin development together.
2025 strengthened our foundations.
2026 will be about deeper technical work, more open-source contributions, and more real opportunities.
We keep building with judgment, humility, and proof of work.
Librería de Satoshi & B4OS
Explore all the ways you can be part of this story here:
#Bitcoin #B4OS #LibreriadeSatoshi #dev #FOSS
With B4OS, we went beyond courses.
Over 300 applicants, programming challenges, technical selection, and real support to contribute to open source.
Today, 17 Spanish-speaking developers are already adding value as active contributors.
Training builders is not about teaching theory: it’s about building together.
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Librería de Satoshi | Instagram | Linktree
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Bitcoin education must be accessible to everyone in their own language. We make it possible in Spanish.
