Experience and stuff

Operating systems

• Unix-like
• Linux distributions
• Debian, as well as derivatives like Ubuntu
• Fedora, and the related derivatives
• Arch Linux and derivatives
• Gentoo and derivatives
• Void Linux
• Alpine Linux
• Android (AOSP)
• Berkeley Software Distribution (BSD)
• FreeBSD
• NetBSD
• OpenBSD

Programming

• C
• x86_64 Assembly (Intel and AT&T syntax)
• Machine code: hexadecimals (basics)
• Rust
• Python
• Shell script

Other stuff

• Nginx
• Nextcloud