Bitcoin’s open‑source ecosystem only thrives when contributors are supported not just to learn, but to stay, grow, and lead. In 2026, we’re evolving Btrust Builders into a scaled, high‑quality contributor pipeline designed for long‑term impact. This year’s program builds directly on the insights from our 2025 Builders experience, with clearer structure, stronger systems, and a deeper commitment to sustained open‑source contribution. The 2026 Builders journey is designed as one continuous path. Developers enter through open applications or via the BOSS challenge, move through structured learning pathways, accelerate through a selective Open Source Fellowship, and progress toward grants, long‑term contribution, and ecosystem roles. What makes Builders 2026 different is our focus on durable outcomes. We care about retention as much as graduation. We care about whether developers are still contributing six to twelve months later. And we care deeply about creating a program that is sustainable for both participants and faculty. This year includes multiple entry points, clearly defined pathways, an always‑on Resource Hub, a ten‑week Open Source Fellowship, and a calendar that creates a steady rhythm of learning, contribution, and outcomes throughout the year. If you’re a developer interested in contributing to Bitcoin open‑source, or someone exploring what that journey looks like, we invite you to learn more. Read the full blog to understand the 2026 program design, explore the Builders Pathways, check out the 2026 program calendar and apply to join this year’s cohorts: https://blog.btrust.tech/introducing-the-2026-btrust-buil… If you’re not ready to apply yet, the Builders Resource Hub (https://pathways.btrust.tech/resource-hub) is always available and designed to help you start learning and making your first contributions.