Greetings! You are at **rockfort.io**, personal website of Kővári Zoltán, aka. Zoltaan Koevaari, aka. Zoltan Kovari, aka. zkoevaari.

This is the place where I publish my hobby engineering projects and writings.

**Disclaimer**: "Beware of the programmer carrying a screwdriver!"
I am only qualified in software, but like to tinker with hardware and that can be dangerous. Use anything you see here at your own risk.

**Caution**: Please observe the licensing conditions, usually indicated at the bottom. Note that unless marked otherwise, that applies to embedded code snippets as well.

**Privacy policy**: This is a static site using no cookies nor scripts, though I reserve the right to keep all data associated with webserver logs.

Latest ======

2025-12-10: A skin for Midnight Commander
A minimalist gray on black color theme.

2025-11-26: GIMP blending modes demo
Publishing a piece I originally created back in 2013.

2025-11-18: A literal lightbulb idea
Concept art for a mod, made using HDR photo compositing.

2025-11-12: A note on licensing code snippets
I would like to clear what are the conditions for using source code that can be found on the site.

2025-11-11: GIMP Script-Fu functions for bulk operations
I am sharing the scripts I have written to manipulate more than one layer simultaneously.

2025-08-26: PDF comparator: Thanks for all the FISH
I take a step back in the project, and port the original script to the Friendly Interactive SHell, with the endeavor turning into a quick review.

2025-05-05: Lua scripts for SciTE
Showing a couple of convenience functions I added to my favorite text editor.

To see earlier posts as well, check out the Blog