Merecete — three open-source projects
What is here
Merecete is the name behind three independent open-source programs: an electrical CAD for switchgear and building installation, a media player that also rips audio CDs, and a small operating system written from scratch. They share no code and no programming language; what they share is that all of them are free, all of them run on ordinary hardware and none of them needs a subscription.
Each project has its own page with the current version, the files to download and their checksums, the links to source, documentation and issues.
KatieCAD v1.1.7
Open-source electrical CAD for switchgear construction, distribution boards and building installation, written with Python and Tkinter.
Released: 2026-11-13 · Project page · Latest release
Xenon-Zones (XZN) v1.1.3
All-in-one media player for Windows, Linux and macOS: audio and video, audio CDs for listening and ripping, equalizer, ReplayGain, tags and playlists, all built in.
Released: 2026-11-11 · Project page · Latest release
Violyx v0.3.0
A 64-bit operating system for x86 computers with its own kernel, its own file system and a windowed text desktop, controlled entirely with the keyboard.
Released: 2026-11-12 · Project page · Latest release
Readable from a text browser, including inside Violyx
These pages contain no JavaScript, no cookies and no tracking, and they do not depend on their stylesheet: without CSS the same headings, lists, tables and links remain, in a sensible reading order. That is deliberate. The browser inside Violyx understands neither JavaScript nor CSS, so the whole site has to work as plain semantically correct HTML. Images are PNG only, each with a real alternative text, and every download link ends in the file name it downloads.
Programs for Violyx
Violyx installs single .vpk files, and its browser saves a downloaded .vpk to /downloads and offers to install it right away. That is what the store section is for: plain links to .vpk packages served from this domain, with the package details read from the files themselves and a machine-readable catalogue at /store/index.json.
Store — programs for Violyx · /store/index.json
Who and where
Everything lives on GitHub under Merecete. Bugs, ideas and wishes are welcome there as issues in the matching repository. The personal, German-language website of the author is separate: katharinabalzer.de.