purplesyringa

This is a list of the many disparate projects I have worked on.

Unwinding

I have worked on things revolving around the mechanism that powers exceptions, panics, and backtraces:

• Lithium (2024) — Faster alternative to panics, directly interacting with the OS interfaces
• iex (2024) — Unwinding-powered Results

HPC

I have worked on sunwalker, a new-gen testing system for programming contests:

• sunwalker-box (2022—2023) — An isolation box, more performant than anything anyone has ever done
• sunwalker-image (2022) — A tiny Docker-like image containing lots of runtimes, compilers, and interpreters

My former activity in the competitive programming sphere has influenced my goals and understanding of good software, which is why I love pushing the limits:

• h (2025—2026) — Ongoing work on a SOTA perfect hash table
• Bedrock prison searcher (2025) — A greatly optimized Minecraft seedfinding tool
• btccaserestore (2024) — A performant brute-force utility to restore Bitcoin addresses from lowercased strings
• Feijoa (2024) — An efficient CRC-based hash-like cryptographic primitive (that's not an oxymoron!)
• blazingio (2024) — 5x faster drop-in <iostream> replacement for competitive programming
• taco (2022) — An experiment to see how well we can automatically perform domain-specific compression (decompression isn't supported though, so...)
• crossmist (2023) — Efficient (read as: 100s of unsafe) and seamless cross-process communication for Rust

This dedication has brought me to demoscene and retrocomputing. I developed stuff for Electronica BK once:

• Good Apple (2018) — A demo (see YouTube), squeezing the most out of the low-level features, manual RAM and disc control
• pdpy11 (2018—2022) — A modern PC-based macro assembler for the PDP-11 architecture with IDE integration and pretty errors
• lzsa3 (2021) — A modification of LZSA2 for faster decoding on PDP-11 with a decompressor provided

I also host a programming-related site:

• reg.algocode.ru (2021—2026) — Standings for various local programming competitions, automatically pulling results from many distinct sources (this has become the go-to site for many school students in Russia)

Cursed stuff

I've made quite a few things just for fun:

• 24 characters of Python (2024) — A tool for turning any Python code into 24 characters, plus whitespace
• Steam (2024) — 3 KB React-like framework with JSX-like syntax, not requiring any custom build system (similar to Preact and htm)
• docker-boot (2024) — Replace your running Linux system with a Docker container
• disas (2023) — A beautiful and slow binutils-based disassembler in Bash
• win-sudo (2017—2018) — sudo for Windows
• BatchBuilder (2018) — OOP in Batch

Cybersecurity

I sometimes take part in CTF competitions. I'm also one of the developers of UgraCTF and developed some closed-source software for it:

• kyzylborda-box (2022) — A lightweight Docker/Podman alternative for low-latency parallel deployment of 100s of containers
• kyzylborda-lib (2022—2023) — A framework for CTF tasks

Deployment

I hosted various competitive programming competitions in Moscow and got my hands dirty with mass deployment of a combined Windows + Linux image in... unpleasant conditions.

• broadband (2022) — Simple reliable broadcast over UDP (I had to develop it in a day to make the deadline)

Online services

I develop habra.chat, a traditional New Year chat for Habr. It has grown from a single SSH chat to a mirrored experience synchronized among many networks.

• ssh-chat — An extended fork of the backend that makes the chat accessible via SSH
• NickServ (2021—2022) — Nick registration
• webchat (New Year Eve of 2023) — Web frontend, see live

ZeroNet

I used to be active on the decentralized network ZeroNet as gitcenter for a large portion of my life and, among other things, developed a few services for the network, the most popular ones being:

• Git Center (2017—2018) — A decentralized GitHub alternative supporting Git and Mercurial repositories
• Kiwipedia (2018) — A wiki for ZeroNet with support of mirroring Wikipedia
• Name.YO (2019—2021) — An alternative DNS provider-like service

I was one of the lead developers of the network and developed a few plugins for it, bringing real-time communication to ZeroNet:

• 0Play (2018) — The first demonstration of the capabilities: a chat, chess and tic-tac-toe games
• Instant Messenger (2018) — An unfinished Telegram/WhatsApp-like alternative
• PeerMessage (2018—2019) — A plugin enabling decentralized real-time communication
• StreamZ (2018—2019) — A Twitch-like video streaming service
• zIRC (2019) — A simple closed-group IRC-like chat

• ZeroFile (2017) — Simple file storage
• CodeR (2017—2018) — JSFiddle/CodePen alternative with client-side CSS/JS transpiling support
• ZeroMailProxy (New Year of 2018) — A tool for sending and receiving ZeroNet mail via a local SMTP/POP server
• Zero Management System (2018) — An unfinished CMS
• /z/place (2018) — An ugly clone of r/place
• Gopher (2018) — An alternative gopher frontend to zites supporting the protocol
• ThunderProxy (2018) — A tool for accessing ThunderWave with a local IRC server
• BackgroundProcessing (2018—2020) — An attempt to enable efficient server-side computations by running user-provided Python code in a sandbox
• Ark (2019) — A plugin bringing backwards-compatible multi-cryptography capabilities to the official ZeroNet client
• ZeroTalk-Matrix (2019) — A bridge between Matrix and ZeroTalk

I also wrote a few libraries some people found useful:

• ZeroDevLib (2017—2019) — User-friendly JavaScript libraries for ZeroNet APIs
• ZeroNet-cmd-lib (2018) — Command-line utilities

And documentation, of course—I love writing:

• The Truth about ZeroNet (2018) — Various tutorials

Other projects

Stuff I can't easily categorize.

• launch (2022) — A lightweight sandbox that kicked off the development of sunwalker-box and relies on undocumented Linux features

I did a bit of work in Minecraft:

• Bad Apple!! in Minecraft (2024)

I developed a few more tools for Electronica BK:

• SPC to MOD (2017) — Tracker music converter
• 1801plm (unfinished) — A timing-exact emulator

I developed clones of a few existing projects due to licensing issues for ZeroNet:

• bencode-open (2019) — A bencode decoder/encoder
• sslcrypto (2019—2020) — A cryptographic library, mostly a frontend to OpenSSL and existing fallbacks. Yes, I know that's a bad idea without a PhD (you may use it if you have one though)
• gevent-ws (2020) — A clone of gevent-websocket

There's lots of small single-use scripts:

• recording-setup (2025) — Voice-over setup simulating keyboard and mouse sounds
• obtuse hashmap (2023) — A custom hashmap implementation for the Uni
• chronobot (2023) — Support for private discussion groups of public channels for Telegram
• clipper (2022) — A type-safe CLI argument parser
• r/place (2022) — r/place clone in Rust
• shell (2022) — Better PS1 for Bash, now developed elsewhere
• Envelopster (2019) — A demotool for animated shaders, used in development of Right Hemisphere
• PijulGit (2019) — A mirror between Git and Pijul repositories
• clirender (2018) — HTML-like apps in terminal
• FCPXML to SRT (2017—2018) — A subtitle extractor from Final Cut Pro format
• workerout (2017) — A simple library to run stuff in web workers asynchronously