Show HN: Firenook – Firebase emulators in Rust: 40× faster writes, 10× less RAM
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Hi HN, we have been developing with Firebase for a long time, and the only way Firebase developers can build apps without directly costing them is using the official Firebase Emulator Suite. However, the issue with this suite is, it's dependent and running on Java with a old Console UI (not updated in years), that was not built to support tons and millions of data and has pretty bad developer experience. For a long time, we were hitting Out of Memory on even high specs laptop while developing…
Story details from Hacker News ↗ · linked article on firenook.dev.
Show HN: Firenook – Firebase emulators in Rust: 40× faster writes, 10× less RAM was first seen on Hacker News · Front page on Nov 6, 2026. Since then it has appeared in 150 checks on 3 different days, across 3 lists (Hacker News · Front page, Hacker News · Show HN, Hacker News · Show HN · this week). Its best position was #14 of 30, reached on Nov 6, 15:37 UTC. It dropped off the list after Nov 8, 14:50 UTC.
Position on Hacker News · Front page at every check (lower is better).
Best rank per day (UTC).
Platform metric as reported by Hacker News.
| List | Best | Days | Checks | Last seen |
|---|---|---|---|---|
| Hacker News · Front page | #14 | 1 | 64 | |
| Hacker News · Show HN | #1 | 1 | 26 | |
| Hacker News · Show HN · this week | #12 | 3 | 60 |
A few top-level comments from Hacker News, shortened. Read the full thread on Hacker News.
Looks nice! Somewhat off topic question though: if you guys are such skilled developers to be building something as involved as this, why not just use something other than Firebase? I used Firebase mainly as a crutch when I was first getting into web dev, but feel that I’ve sorta outgrown it. Do you feel Firebase…
This is really neat! I've been working on an open-source version of the Firebase Realtime Database as well that might be of interest[1]. Also written in Rust! Might be a good basis for building out the Realtime Database part of Firenook if you have any interest in supporting that as well. [1]…
Awesome, not surprised to hear that Google still neglects to improve this experience, but you called out exactly why: > [...] the only way Firebase developers can build apps without directly costing them is using the official Firebase Emulator Suite We had started on the management UI portion of this at my old job…
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Not at the moment. It was last on the list on Nov 8, 14:50 UTC, after 3 days of trending.
#14 on Hacker News · Front page, on Nov 6, 15:37 UTC. Trendoday checks this list every 15 minutes.
It was first seen on Nov 6, 2026 and has been on the list on 3 days (150 checks) since.
171 points and 30 comments; submitted by sanjevirau on Nov 5, 2026.