₿OSS Challenge

Programming challenge for devs who dare to make the leap to Bitcoin Open-Source.

I accept the challenge

Are you joining the challenge?

₿OSS Challenge is open and free. Just by registering with B4OS you get the following exclusive benefits:

B4OS benefits:

  • Join our Discord community from day one
  • Study groups
  • Mentoring and networking with B4OS grantees

For the best devs:

  • Residencies in Florianópolis (Brazil), Valencia (Spain) and Guadalajara (Mexico)
  • Sponsorship to attend conferences worldwide
  • English and Portuguese classes

Application requirements:

  • Software development experience (2+ years)
  • Solid knowledge in languages such as C++, Rust, Python or JavaScript
  • Genuine interest in contributing to the Bitcoin open source ecosystem
  • Availability to invest 5 to 10 hours weekly
  • Resilience to complete the entire program
  • Proficiency in English to actively participate in the program

Join the ₿OSS Challenge today and discover how far you can go.

Registration until: November 22, 2026

How does the ₿OSS Challenge work?

A 3-month program designed to take you from learning to real contribution in Bitcoin

1

Month 1: Challenges

Have fun with programming challenges and learn Bitcoin by coding.

Month 1
Months 2
2

Month 2: Forks and paths

We split into two paths, some start contributing to BOSS, while others take courses and study groups. The best devs from both paths are selected to receive grants and micro-grants. Plus the opportunity to attend residencies.

3

Month 3: Grants, mentoring and projects

Based on PoW (Proof of Work), devs are connected with mentors and projects of greater interest within the ecosystem.

Months 3

Registration form

You can use your real name or a pseudonym
Double-check your email, we will use it to communicate with you
Select the country where you currently reside
Your current city of residence
Select the language where you feel most productive
Indicate what other languages and technologies you master
Share your GitHub profile or portfolio
Share your LinkedIn profile
We're interested in knowing what specific aspects of the Bitcoin ecosystem you're passionate about (Privacy, Security, Censorship resistance, Decentralization, etc.).
You must accept the terms to continue