serena's nix/home-manager stuff

I'm tired of setting my machines by hand all the time so like a basic transfemme let's finally learn nix.

Install

1. install nix

• https://nixos.org/download.html
• sh <(curl -L https://nixos.org/nix/install) --daemon

2. https://github.com/nix-community/home-manager

• install home manager

3. clone this repo
4. symlink home.nix to ~/.config/home-manager/home.nix
5. install the things with home-manager switch