Turning Linear Search into a Performant Data Processing Engine
Filter 25 million property records by 87 criteria in under 100 ms (p99) to help decide where to buy a home.
Stack: Rust · Axum · Polars +6 more
https://schmelczer.dev/articles/
Articles
Technical articles and notes about projects, systems, AI deployment, graphics, simulations, and tools.
2026
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Conflict-Free Three-Way Text Merging
Both sides' edits survive without conflict markers, and even the cursors get shifted. Available as a library for Rust, TypeScript, and Python.
Stack: Rust · WebAssembly · Python +2 more
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Compounding Self-Hosting
Combining Immich, Home Assistant, and an e-ink screen for truly personal tech.
Stack: Python · Raspberry Pi Zero 2 W · Waveshare 7.3" 6-colour panel +5 more
2024
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A Fleeting Garden on Your GPU
A WebGPU physarum simulation where you can control millions of agents with your paintbrush and watch them bring your drawings to life.
Stack: TypeScript · WebGPU · WGSL +1 more
2023
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Keep It Stupid Simple Backup Strategy
A shell script so simple I'm willing to trust it with my most precious data.
Stack: Bash · BorgBackup · Btrfs +4 more
2020
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A Real-Time 2D Ray Tracer That Runs on Low-Spec Phones
A 2D ray-tracing library using signed distance fields, tiled rendering and dynamically generated shaders to enable real-time graphics on almost all devices.
Stack: TypeScript · WebGL · WebGL2 +2 more
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Doppler
A ray-traced mobile multiplayer game built around a hand-rolled engine.
Stack: TypeScript · Node.js · WebSockets +3 more
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50 FPS Game Engine on an 8-Bit Microcontroller
A handheld game built from the PCB up: ATtiny85V, OLED, IR receiver. 8 MHz, 512 bytes of RAM, and a charming atmosphere.
Stack: C · ATtiny85V · SPI OLED +3 more
2019
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Making ticking To-dos more satisfying
Full-stack UX experiment for tracking goals as towers that grow with every finished task.
Stack: Angular · TypeScript · Flask +1 more
2018
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Explosive traffic simulation
A low-poly Unity city built for the CrySyS PLC-hacking challenge.
Stack: Unity · C# · REST API +1 more
2017
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3D Voxel Game in C
Destructible voxel terrain, flying enemies, and a renderer derived on Post-it notes.
Stack: C · SDL 1.2 · SDL2 +2 more
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My first browser game
A small game I used as the basis for SchDesign's JavaScript workshop at BME.
Stack: JavaScript · Canvas
2016
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Photo Site Generator
My photo portfolio site: once PHP on a Raspberry Pi, now a Vite script turning a folder of JPEGs into static HTML.
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Physics Exam Practice App
How I learnt what good software actually means.
Stack: jQuery · PHP · Node.js +3 more
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My First Full-Stack Project: LEDs Driven by an FFT
A Raspberry Pi music player that drove RGB LED strips.
Stack: Python · NumPy · FFT +3 more
