Bitcoin developer momentum snapshot

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# Bitcoin developer momentum snapshot

Template: v1

## Snapshot
Bitcoin added +27,148 stars and 0 repos versus the prior weekly snapshot.

- Latest week: 2026-W16
- Total repos tracked: 2,426
- Aggregate contributor count: 28,451
- Total stars: 521,723

## Top gaining repos
- No per-repo breakdown available yet (run Phase 3 scraper for full graph).

## Language shift
- Language mix was stable week over week.

## Why it matters
Bitcoin is showing builder movement that is hard to fake and easy to benchmark against peers.