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Public story · 2026-02-26 · source-backed
Daniel Saewitz articulated what's happening to open source IP: tldraw moved its entire test suite to a closed-source repo after Cloudflare used Vercel's public tests (1,700+ vitest, 380 playwright) to replicate Next.js in one week. SQLite has maintained 92M lines of proprietary tests (592x source code) for years. cURL shut its bug bounty. Tailwind CSS saw documentation traffic -40% and revenue -80%. The paradox: Willison's Red/Green TDD pattern (endorsed by Fowler) creates exactly the test coverage that makes slop-forks possible.
Each link below shares sources, entities, or timing with this story.
Cloudflare released Vinext / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Cloudflare released Vinext); both cover Cloudflare, Vercel; overlapping topics (cloudflare, code).
Cloudflare supports MCP / Shared entities / What happened next / Tension
Linked by a graph relationship (Cloudflare supports MCP); both cover Vercel, Willison; picks up the Vercel thread on 2026-07-27.
Vercel partners with Claude Code / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Vercel partners with Claude Code); both cover SQLite, Willison; overlapping topics (code, documentation).
Linked by a graph relationship (Vercel partners with Claude Code); both cover Cloudflare, Next; overlapping topics (cloudflare, code).
Vercel partners with Claude Code / Shared entity: Willison / Shared topic / What happened next / Tension
Linked by a graph relationship (Vercel partners with Claude Code); both cover Willison; overlapping topics (code, creat).
Cloudflare released Workers / Shared entities / What happened next
Linked by a graph relationship (Cloudflare released Workers); both cover Cloudflare, SQLite; picks up the Cloudflare thread on 2026-08-06.
OpenAI partners with Cloudflare / Shared entities / What happened next
Linked by a graph relationship (OpenAI partners with Cloudflare); both cover SQLite, Willison; picks up the SQLite thread on 2026-07-31.
Vercel partners with Slack / Shared entities / What happened next
Linked by a graph relationship (Vercel partners with Slack); both cover Next, Vercel; picks up the Next thread on 2026-06-30.