dima853
110 subscribers
28 photos
1 video
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Building a social network with uncompromising privacy and security by design

Rus - t.me/dima853_code
LeetCode - leetcode.com/u/dima853
GitHub - github.com/dima853
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finally more or less finished my in-memory db.

added pointer compression, a segregated fits allocator, thread local storage
improved security, fixed segfaults, added optimizations (cache line alignment, simd, etc.)

tested the db on a small benchmark — handles 1000+ threads, scales up to 1.6gb+ in the pool (and 5700 blocks), reuses memory correctly, 0 errors in valgrind, ran under load for about an hour with no crashes or leaks

came up with a rough way to make popular traffic analyzers not notice certain packets.
this will definitely be the foundation of the entire social network architecture

also birthed an idea for a subproject within the social network.
several algorithms, architectures, etc. will be implemented based on it — it could easily become a startup if polished to perfection

i've already sketched all of this out schematically (but only part of it)
maybe later i'll go into more detail about it

and finally — a perfect one‑year streak on leetcode 🎉
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Made a website for the demo, there will be a bit of info about everything
-> https://kryosette.vercel.app

Hopefully I'll be able to finish it by May 17

Also, 800 problems solved on Leetcode 🎉
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dima853 pinned Deleted message
Demo26 | kryosette

No surveillance, no servers, no overhead, or any other shit.

Ready to show the completed foundation of some features, as well as the principles, goals, and next steps.

-> https://kryosette.vercel.app/demo

I've shown a small part of my work, simply because all of this is incredibly complex and time‑consuming to achieve in order to present it in full.
And obviously, not everything can be illustrated.

For myself, I've built the very foundation that allows me to properly roll out and test various features.

I have several schematics of my algorithms/ideas/architectures that I'll start implementing very soon, and of course, everything works in theory.

There will be a lot of reverse engineering, testing, papers, and closing security gaps

kryosette - t.me/kryosette
selfuniversity - t.me/selfuniversity
bytegraph - t.me/bytegraph

Discussion - t.me/kryosette_chat
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dima853 pinned a photo
Continued working on self university, added a lot of new functionality:
likes, comments (under mini‑course modules, posts, etc.), comment replies, notifications, dashboard, profile, subscriptions, user page, group chats (public only), post/poll creation, streak, badges, settings, and more.

In short, I will make for free one or several mini‑courses with important additions to them.
Rate it, take a look, and draw your conclusions. If everything is done well, I will make THE BEST paid mini‑courses.

But if you have any suggestions regarding the functionality (what to add, what to remove, what to transform), write right away in the comments while there's still time.

A test version, which you'll be able to log into, I think I'll make soon.

It's going to be too cool )
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Also very soon (possibly this week) I will roll out all the features from the previous post to the site + a couple of new ones, and I've also made 2 apps, for iOS and Android

The mini-courses will come a bit later, but you'll be able to register right away, grab unique usernames, start a streak, etc.
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Also came up with several types of tasks, some of them will be solved using cards, the video shows an example of the simplest task

But that's not all, there will be a bunch of other interesting stuff
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