₿OSS Challenge 2026 | Start Your Career in Bitcoin Open Source Software

Applications are now open for the ₿OSS Challenge, a Chaincode Labs initiative for coders serious about beginning a career in bitcoin open source software.

This is your shot to break into bitcoin open source — ship real code, learn from top contributors, and join the builders shaping bitcoin’s future.

The program is completely free and open to anyone around the world.

🗓️ Applications close December 31, 2025
🗓️ Program starts the week of January 12, 2026

Learn more at https://bosschallenge.xyz