Zapping Rocks Unlocks Stimulated Geologic Hydrogen
We haven't written up this one. Hacker News has the full story — the link below goes straight to it.
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How I Cut MCP Token Usage by 91% (and Learned a Humbling Lesson About Tokenizers)
The Problem When you add MCP servers to your AI coding agent, each one dumps its full JSON schema into context. 255 tools across all servers = 39,964 tokens.
- MCP servers consume large token space by adding full JSON schema to context
- Mcptoon compresses JSON schema by 91%, reducing 39,964 tokens to 3,511
- Mcptoon returns results in human-readable TOON format, saving even more tokens
X Open Sources Its Ranking and Filtering Algorithms
An anonymous reader shared this report from TechCrunch: X is significantly expanding its open source codebase, which includes the app's "For You" algorithm and its core ranking engine, and adding a…
- X open sources core ranking and filtering algorithms on GitHub
- For You timeline algorithm and ranking model parameters released
- Transparency tool lets users download aggregate stats as JSON
Paywall Any API Endpoint With Two Prices: Sats or Compute
You built an API. It works. Then the scrapers show up. Not paying customers. Bots hammering your endpoint a thousand times a minute, running up your compute bill, and giving you nothing back.
- Pay-to-Compute model protects APIs against scrapers
- Callers pay in sats or solve compute-intensive proof-of-work
- Server-side verification is minimal and straightforward
How to build and ship an iOS app without a Mac
If you want to put an app on the App Store, Apple requires you to build and sign it with Xcode, and Xcode only runs on macOS.
- Purchase a Mac mini for $799 as a one-time hardware investment
- Rent cloud Macs from services like MacStadium for $20/month to $100+/month
- Use GitHub Actions for free macOS builds in public repositories
React useLatest Hook: Read Fresh State in Async Callbacks (2026)
Here's an autosave button that lies to the user: function Editor ({ docId }: { docId : string }) { const [ text , setText ] = useState ( "" ); const [ status , setStatus ] = useState < " idle " | "…
- React useLatest hook reads fresh state in async callbacks
- Prevents stale closures causing outdated data issues
- Works with setTimeout, setInterval, event listeners
Fix "No signing certificate matching team ID" in GitHub Actions
If you're building an iOS app in GitHub Actions (or any headless CI, really) and your archive/export step fails with something like No signing certificate "iOS Distribution" matching team ID…