Nobody should ever invent new things or try building things. The set of technologies we have is completely perfect. No further innovation is required.

I learned a ton of things doing this (not least how to post something on HN, and that Show HN exists). Can't say that for Minecraft.

That's why I upvoted you.

Btw, have you followed a tutorial or a instruction to make this? I'm reviewing the code and it seems pretty straightforward.

Thanks for the upvote and the compliment! There isn't all that much code, just enough for a toy project, and what there is, is written with maintainability in mind.

Not sure what kind of tutorial I could have read. I've seen two key-value store implementations before, memcache and openkeyval. The memcache code is a nightmare to follow, and openkeyval is written in PHP, so neither of them is what I'd call either a tutorial or instructive.

Other than that, I read a book about C twenty years ago, but I'm completely self-taught ever since. I obviously read djb's paper on critbit trees before implementing them. The rest is from man pages and code. I had never used libfcgi for anything big before embarking on this, so that was a new thing. It's also my first time using mmap, and the Windows equivalent. Configuring nginx just right may have been the hardest part of it all.

I think the code is pretty clean, although it could use a few more tests. Mocking out libfcgi is a bit of a chore that I didn't want to go into right now, and it has already bitten me in the ass once.

I disagree. This is a "show HN" post. Anyone should show anything they feel good about. Even if it's ABD (already been done). Keep the NoSQL databases and JS libraries coming!

Yup, cool. But don't you think creating a database engine involves many high-technical subjects that only a team of engineers can handle them?

I'm the author of IntroJS and many other open-source JavaScript libs. Those things make much more sense than a database engine.