Available for engineering work
Senior game and application developer with 16 years of experience—from renderers and game tooling to firmware, archival media, and local AI.
Based in Czechia · Open to work
Selected engineering
Six projects spanning desktop applications, low-level systems, firmware, media preservation, game tooling, and GPU inference.
A maintained PySide6 desktop workflow for reliable batch MKV muxing, with release hardening around media safety and cross-platform packaging.
Maintained fork · safer replacement paths, queue recovery, packaging, and release validation
Upstream yaser01/mkv-muxing-batch-gui
A cross-platform SACD extraction toolchain spanning native C, archival DSF/DSDIFF/FLAC output, damaged-media recovery, and desktop packaging.
Maintained fork · extraction reliability, recovery paths, metadata, GUI, and multi-platform releases
Upstream EuFlo/sacd-ripper
Rust-based display control for AOOSTAR WTR MAX and GEM12+ Pro systems, including configuration and Proxmox-focused deployment work.
Contributed fork · device support, configuration, and deployment refinements
Upstream zehnm/aoostar-rs
Native TinyUSB firmware for Pico 1 and Pico 2 that produces configurable, randomized USB HID keyboard and mouse activity without a host application.
Original project · firmware architecture, device behavior, builds, and documentation
A long-running Pascal toolkit for inspecting, extracting, and converting game assets, prepared for public release after fourteen years of private development.
Original project · archival release, format coverage, tooling, and documentation
GPU architecture-specific build tooling for a llama.cpp and TurboQuant inference workspace targeting long-context local AI on constrained VRAM.
External repository · initial workspace and GPU-specific build automation
Complete public record
Every entry is backed by a currently reachable public commit attributed by GitHub. Untouched forks, private work, and this self-referential site repository are excluded.
Maintained cross-platform Qt GUI for batch muxing video, audio, subtitles, chapters, and attachments with MKVToolNix.
Upstream yaser01/mkv-muxing-batch-gui
Xiaomi Redmi Pad SE bootloader unlocker
Cross-platform SACD ISO extractor with archival DSF/DSDIFF/FLAC output, damage recovery, CUE/XML metadata, logging, and a Linux/Windows/Mac GUI.
Upstream EuFlo/sacd-ripper
Native Raspberry Pi Pico USB HID keyboard/mouse jiggler firmware using TinyUSB, with Pico 1/2 builds, natural mouse movement, randomized keyboard actions, schedule config and BOOTSEL pause.
LLM inference with 7x KV cache compression. Combines llama.cpp (production inference engine) with TurboQuant (KV quantization). Run 131K token context on 16GB VRAM. OpenAI-compatible API server. Supports 100+ model architectures.
A DirectDraw API compatibility layer that enables legacy games from the 1990s-2000s to run on modern Windows systems by translating DirectDraw 7 calls to modern rendering backends (OpenGL or Direct3D 9).
A Windows DLL interceptor for the Bink video codec that adds subtitle support, enhanced logging, and frame-by-frame playback control.
A utility suite for ripping, inspecting and converting game assets — released after 14 years in private development.
Public engineering work with verified commit evidence.
Public engineering work with verified commit evidence.
Public engineering work with verified commit evidence.
Developer Journey App is a gaming sample app, built with Cloud Run, Cloud Storage, Cloud Firestore, and Cloud Build.
Beefy Front Idlers (for Vorons)
TMC stepper driver autotuning Klipper python extra
A JavaScript library to create highly configurable floating panels, modals, tooltips, hints/notifiers/alerts or contextmenus for use in backend solutions and other web applications.
No repositories match those filters.
Engineering profile
I work where high-level product needs meet low-level technical constraints: legacy formats, device behavior, native code, GPU pipelines, cross-platform packaging, and production safety.
Cross-platform desktop tools, Qt interfaces, packaging, release engineering, and workflow reliability.
C, C++, Rust, firmware, device integration, binary formats, and hardware-aware debugging.
Rendering, legacy compatibility, asset pipelines, extraction, preservation, and modding tools.
GPU-specific builds, inference stacks, model workflows, and practical deployment on local hardware.
Evidence, not profile decoration
Standalone projects are verified against current default or GitHub Pages branch history. Forks are compared branch-by-branch with upstream, and only unique commits resolving to dev-zetta as primary or co-author qualify.
Commit OIDs are deduplicated within each repository. Counts are not summed across repositories because the same commit can exist in multiple repository networks.
Full methodology on GitHub