Firenook
Firebase emulators in Rust: 40× faster writes, 10× less RAM
StartupFree
About
Firenook runs the Firebase emulators with your firebase.json, SDKs and ports: 40× faster writes, 10× less memory, no Java, and data that survives restarts.
Highlights from the product’s site
- firebase.json and .firebaserc
- Rules, indexes, Functions
- Eight emulators, on the ports you already use
- Measured on a real application
Open source: the code is at github.com/firenook-dev/firenook.
First shown on Hacker News on 5 November 2026 as “Firenook – Firebase emulators in Rust: 40× faster writes, 10× less RAM”, where it reached 173 points and 30 comments. Read the discussion.
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