Base of Nix Configuration

nixos/configuration.nix

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+{
+  inputs,
+  lib,
+  config,
+  ...
+}:
+{
+
+  imports = [
+
+    # Hardware
+    ./hardware-configuration.nix
+    ./configurations/kernel.nix
+
+    # Configurations
+    ./configurations/users.nix
+    ./configurations/home-manager.nix
+
+    # Modules
+    inputs.self.nixos.boot
+    inputs.self.nixos.graphics
+    inputs.self.nixos.audio
+    inputs.self.nixos.networks
+    inputs.self.nixos.keyboard
+
+  ];
+
+  nixpkgs = {
+    overlays = [
+      inputs.self.overlays.additions
+      inputs.self.overlays.modifications
+      inputs.self.overlays.unstable-packages
+    ];
+  };
+
+  nix =
+    let
+      flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
+    in
+    {
+      settings = {
+        experimental-features = "nix-command flakes";
+        flake-registry = ""; # Opinionated: disable global registry
+        nix-path = config.nix.nixPath; # Workaround for https://github.com/NixOS/nix/issues/9574
+      };
+      # Opinionated: make flake registry and nix path match flake inputs
+      registry = lib.mapAttrs (_: flake: { inherit flake; }) flakeInputs;
+      nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs;
+      channel.enable = false; # Opinionated: disable channels
+    };
+
+  networking.hostName = "nixos";
+  time.timeZone = "Europe/Brussels";
+
+  # System services
+  within.boot.systemd = true;
+  within.boot.plymouth = true;
+  within.graphics.nvidia.base = true;
+  within.audio.pipewire = true;
+  within.networks.dns.enable = true;
+  within.networks.manager.enable = true;
+
+  # System configurations
+  within.keyboard.apple.enable = true;
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  system.stateVersion = "25.11";
+}

nixos/configurations/home-manager.nix

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+{ inputs, ... }:
+
+{
+  imports = [ inputs.home-manager.nixosModules.home-manager ];
+
+  home-manager = {
+    extraSpecialArgs = { inherit inputs; };
+    users = {
+      alistreaza = import ../home-manager/home.nix;
+    };
+  };
+}

nixos/configurations/kernel.nix

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+{ pkgs, ... }:
+
+{
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelModules = [
+    "coretemp"
+    "nct6775"
+  ];
+}

nixos/configurations/users.nix

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+{ ... }:
+
+{
+  users.users = {
+    alistreaza = {
+      isNormalUser = true;
+      extraGroups = [ "wheel" ];
+    };
+  };
+}