Back in college, the engineering school had a farm of Linux servers from which you could access all your documents, as well as log in to your account from any number of computer labs around campus. Back when I was first learning Linux (not that long ago, 2008), I fell in love with how many things you could customize, and really create your own experience. When I got to college, I wanted to replicate this ability (install ANY program! use ANY desktop environment!), but predictably, their machines were pretty locked down.
I went snooping around the internet, and found that there was this magical software called Nix, which would let you have a package manager without root! The Linux computers in the lab didn't have root, but they did have GCC. I started learning all about build systems (mainly that you could specify a custom --prefix and essentially create your own filesystem within your filesystem), and got to work compiling Nix (or, i think, GUIX) from source. It's actually a fantastic amount of work to go from GCC all the way to a functional GUIX, even with access to every source tarball on the Internet
Eventually some admin emailed me about this project and I stopped working on making it happen shortly after, but it was such a formative experience in my tech life that I always think back fondly on it when Nix pops up.
This is also how I got into Nix! I just used a 'normal' Nix install with a fake chroot (pivot_root/proot) environment, though, so I didn't have to build from source and I got to leverage the binary caching. There were some quirks, but overall it worked well.
I went snooping around the internet, and found that there was this magical software called Nix, which would let you have a package manager without root! The Linux computers in the lab didn't have root, but they did have GCC. I started learning all about build systems (mainly that you could specify a custom --prefix and essentially create your own filesystem within your filesystem), and got to work compiling Nix (or, i think, GUIX) from source. It's actually a fantastic amount of work to go from GCC all the way to a functional GUIX, even with access to every source tarball on the Internet
Eventually some admin emailed me about this project and I stopped working on making it happen shortly after, but it was such a formative experience in my tech life that I always think back fondly on it when Nix pops up.