In-person
Residencies
Intensive experiences in cities across the Spanish-speaking world. Weeks of focused work with other program participants.
B4OS Residency Mexico City
Mexico City, Mexico
A six-week residency for the program’s fellows only, focused on advanced projects and specialized mentoring.
Register your interestB4OS Residency Valencia
Valencia, Spain
An intensive two-weekend residency in Europe, focused on networking and collaboration with the Spanish Bitcoin ecosystem.
Register your interestB4OS Residency Buenos Aires 2024
Buenos Aires, Argentina
Two in-person weeks in Buenos Aires that closed the first edition of B4OS. The top participants worked alongside mentors from Bitcoin Core, Lightning Network and open source projects, supported by ONG Bitcoin Argentina, LaBitconf and La Crypta.
Register your interestB4OS Residency Florianópolis 2026
Florianópolis, Brazil
A two-week intensive program for senior developers from South American countries, with specialized training in Bitcoin Core and Lightning Network.
Register your interest