Hi, I was playing with rusty-rain when I decided that it was a good idea to make a custom FOSS effect. For this I made a change in "sibling" project ezemoji PR and with a small local change in rusty-rain I got it. All icons are from Nerd Fonts, so if you know of some FOSS icon is missing let me know to add it in the PR, =).
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
Nothing hard, you need to create in ezemoji a group that contains the codepoints of the glyphs you like and in rusty-rain add that group as an option. Check my ezemoji PR that's the example you need because I did exactly that.