put everything in the nixos folder into your /etc/nixos folder
remove your previous configurations (configuration.nix, and whatever else you added), EXCEPT hardware-configuration.nix, put hardware-configuration.nix into the main/ folder
then run sudo nixos-rebuild switch --flake ".#(your username here!!!!)" IN THE /etc/nixos/ FOLDER OTHERWISE IT WILL FAIL
reboot, and after logging in type "Hyprland" to open the desktop, i dont use a login manager for now
also change the user "awoeeq" everywhere where it is mentioned with your username in the flake.nix file
use the "waypaper" app to set your wallpaper, hyprland will recall what you selected there every reboot
to have the same fetch icon as me, put "fastfetch.png" into your ~/Pictures folder, thats where fastfetch looks for it
the wallhaven- images are my wallpapers, you dont need to put them in any special folder since, as explained above, you should set wallpapers through waypaper, not in any declaritive way inside the nixos config, but if you wanna know i usually put em in ~/Pictures/wallpapers to not clutter my Pictures folder too much
the default swaylock bind "Super + L" looks for main.png in the ~/Pictures/lockscreen/ folder, put the nix.png file there, if you want that image to be the lockscreen of course
use the "selectdefaultapplication" app to set your default apps
my spotify is also not declared in the nix config, atleast not most of it, the theme needs to be installed manually in spotify's "marketplace" section, its the comfy theme, install it and set the catppuccin-mocha variant