Work

Projects

Retro demoscene, 30+ native macOS apps, AI tools and web systems — all built by one developer.

AI / Web Live
AISelector — Model Registry & Recommendation Engine
A centralized database and public API for tracking AI model capabilities, pricing and performance across providers. Covers 40+ models from OpenAI, Anthropic (Claude) and Google Gemini with live pricing data, capability flags, and tier classification.

The system includes a smart recommendation engine (?action=recommend&task=code) that uses weighted scoring per task profile — quality, speed, cost, and reasoning ability — to return the best model for a given use case. Designed for developers integrating multiple AI providers who need a single source of truth for model selection decisions.
PHP MySQL OpenAI Claude Gemini REST API JSON config
Retro / Demoscene Active
PRIMAL — Demoscene Group (C64 & Retro Platforms)
Active member of PRIMAL, a demoscene group producing demos, intros and games for the Commodore 64 and other retro hardware. Group: BadCode64, CopAss, Nadin. Connected to the Arok Party retro scene.

Transmission64 BASIC demo competition results: 1st place twice, 3rd once.

Selected productions:
Cauldron — 256b intro (2025)
Mirror Sphere — MS-DOS 256b intro (2025)
AY Tracker — Browser tool (2025)
The Homelab Story — Custom hardware 32K intro (2025, PRIMAL)
Wait for 152 Seconds — C64 BASIC demo, Transmission64 2024 #1
Tie vadász — C64 game (2024)
Ötödölő — C64 game (2024)
Cauldron — C64 BASIC demo, Transmission64 2024 #3
Stranger Sins — C64 BASIC demo, Transmission64 2023 #1
City Grill — C64 BASIC game (with Copass)
Target platforms: Commodore 64, Plus/4, Primo, Homelab 2, Homelab 3, Videoton TVC
6502 ASM C64 Plus/4 Primo Homelab TVC PRIMAL Demoscene
Active
macOS / Music 2 App Store
macOS Music & Audio Apps (9 projects)
Native macOS applications for music playback, audio visualization, video creation and synthesis. All built in Swift as a solo developer.
BC64 Music Player — Full music player, retro C64 design, SQLite, waveform viz, VU meters, playlist voting. MP3/WAV/FLAC/AAC. App Store
Piano MIDI Visualizer — Animated piano-roll visualization from MIDI+WAV. WebKit renderer, 16:9 & 9:16 video export. App Store
Score To Video — Sheet music (PDF/images) to video. Landscape & portrait. For music educators & YouTube creators.
BC64 WAV to MP3 — Batch WAV→MP3 converter, per-file metadata, bitrate selection, lame CLI backend.
BC64 Music Visualizer — Multi-layer music viz MP4 creator, plugin architecture, waveform animations.
Easy Music Video Creator — Full HD 60fps visualization with amplitude & bass analysis (0–250 Hz).
BC64 DAW — Synthesizer / DAW. Multi-oscillator, ADSR, filter, reverb, polyphonic. WebKit UI.
WebView Video — WebView MIDI piano visualization prototype.
Easy Audio Merge & Split — WAV amplitude extraction & waveform viewer prototype.
Swift AVFoundation WebKit SQLite MIDI App Store
9
apps
macOS / Video 1 App Store
macOS Video Apps (4 projects)
Native macOS video playback, editing and frame management tools. All built in Swift.
BadCode64 Player — Media/video player. Dark theme, menu bar icon, window memory, custom fullscreen, localized. App Store
AI Video Frames — Video frame manager. Aspect ratio filtering, WebP→PNG, drag & drop reorder, batch export.
BC64 Video Editor — Video editor with WebKit visual UI and AVFoundation backend. Timeline editing via JS→Swift bridge.
Easy Video Shorts — Short-form video editor. Drag & drop, timeline trimming, movable 9:16 crop overlay, MP4 export. SwiftUI.
Swift AVKit AVFoundation WebKit SwiftUI App Store
4
apps
macOS / Utilities & Dev Tools 8 App Store
macOS Utilities & Developer Tools (14 projects)
System utilities, menu bar apps, productivity tools and developer helpers. Most are single-file Swift apps compiled with swiftc — no Xcode project required. 12 finished, 8 on the App Store.
Taskbar64 — Windows-style taskbar for macOS. Per-app colored buttons, active window highlighting, built-in notepad. App Store · GitHub
LauncherHub — Menu bar launcher. Apps, VS Code folders, Finder paths, Chrome URLs, SSH, scripts. 220+ emoji icons, 12 color schemes. ~113 KB. Notarized
BC64 Keys — Keyboard remapper. Visual GUI, click & press to remap. Open source GPL-3.0. Notarized · GitHub
BadCode64 Calc — Programmer calculator. HEX/DEC/BIN, bitshift, live base conversion, retro LCD. App Store
ClipStack Mini — Clipboard history in the menu bar. Text, URLs, images. Search, pin, ⌘⇧V hotkey. App Store
Menu Bar Note Slots — 10 color-coded note slots in the menu bar. Auto-save JSON. App Store
TaskBar Seven — Minimal todo list with exactly 7 slots. SF Symbols, color per task, archive. App Store
Micro Time Tracker — Menu bar time tracker. Multi-project, daily/weekly/monthly stats, CSV export. App Store
ClickCrop — Clipboard image cropper in the menu bar. Auto multilingual recognition. App Store
BC64 PDF — PDF merge & split. Drag & drop, reorder, PDFKit backend. Notarized
SimpleTextCraft — Minimal text editor, SwiftUI, universal binary (x86_64+arm64). App Store
Taskbar v1 — Earlier Taskbar64 version. 20 pastel per-app colors, dual-row layout.
BadCode64 Tools — Developer toolbox in menu bar. 8 tools: timestamp, base64, URL encode, JSON formatter, UUID, slugify, password gen, clipboard inspector.
BadCode64 Tables — Spreadsheet app. 26 columns × 12,000 rows, cell formatting, multi-window.
Swift SwiftUI Menu Bar App Store Notarized GitHub
14
apps
macOS / Creative Mixed
macOS Creative Tools (3 projects)
Pixel art editing, painting and game dev sprite tools.
BadCode64 PS — Full pixel art & image editor. Layers with blend modes (Normal/Multiply/Screen/Overlay), drawing tools, symmetry, undo/redo, custom .bc64ps format. Optional OpenAI AI image generation. GitHub
BC64 Sprite Editor — Sprite collision circle editor for game dev. Import images, place named collision zones, JSON export. SwiftUI.
BC64 Paint — Drawing/painting app prototype. Pencil, highlighter, rectangle tools, color palette.
Swift SwiftUI OpenAI GitHub
3
apps
Web / AI Live
Mit Főzzek Ma — AI Recipe Generator
A recipe suggestion web app that generates personalized meal ideas using AI, based on dietary preferences, available ingredients and meal history. Includes a preference learning system and multi-language output.
PHP OpenAI JavaScript MySQL
Live
Videos

YouTube

Retro demos, games, app showcases — real hardware, real code.