After around 4 months of reading manuals, forums, watching tutorials and asking online, I've eventually managed to have an almost properly working NixOS installation on my pc and wiped the Win10 partition (I have win10 in a VM as a fallback mechanism)!
I started this journey initially wanting to switch to linux and I started my tests with Debian Stable. But the repo was really old (as expected), so I tried the Testing variant. But this repo had missing packages. I tried Unstable for a few moments too, but I crashed and didn't want to bother. I figured that I could make a script to (declaratively?) fetch and auto update packages from github, bypassing Debian Testing.
Then it was when I looked at NixOS and found out that the whole system kinda does what my script would do, but much much much better. Almost ever since then I tried to learn almost everything I needed and a few extra stuff to get it working. This is the configuration I've come up with so far (it's probably considered simple).
I also made a guide to keep track of what I was doing and what I would have to do once I took the decision to transition to Linux/NixOS, hopefully it might help others too:
https://codeberg.org/BlastboomStrice/LinuxPlan/src/branch/main/LinuxPlan.md
Finally I can be called a Linux user :)
Strongly second this recommendation. One of the biggest benefits of nix is being able to use the package manager on Linux/MacOS. You can quite literally start out by simply porting whole config files into the nix store. Just copy the file into your nix configs repo and have nix create the symlink.
I personally play around with these via imports. Say I want to start configuring Firefox via home-manager. I could start with configuring Firefox manually, then storing my raw
/home/luc/.mozilla/firefox/profiles.iniin my nix store by the method above via a file calledfirefox-native.nix. Then infirefox.nixI play around with parameters in the nix config. If I hit a wall and don't have time to figure out the "real" nix configs, I just switch my import over from:to:
Don't forget about the Discourse page! I've found folks there to be very friendly and helpful.
Other useful tools are: search.nixos.org - for seeing if a package exists. mynixos - for exploring options within a program/service configuration.