refactor!: massively overhaul configuration and bring it to the modern

age

modules/core/default.nix

@@ -0,0 +1,75 @@
+{ pkgs, inputs, ... }:
+{
+  # Enable the X11 windowing system.
+  # You can disable this if you're only using the Wayland session.
+  services.xserver.enable = false;
+
+  # Configure keymap in X11
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  nix = {
+    settings.experimental-features = [
+      "nix-command"
+      "flakes"
+    ];
+    optimise.automatic = true;
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 14d";
+    };
+    # Free up to 1GiB when there is less than 100MiB left
+    extraOptions = ''
+      min-free = ${toString (100 * 1024 * 1024)}
+      max-free = ${toString (1024 * 1024 * 1024)}
+    '';
+  };
+
+  hardware.bluetooth.enable = true; # enables support for Bluetooth
+  hardware.bluetooth.powerOnBoot = true; # powers up the default Bluetooth controller on boot
+
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
+  fonts = {
+    enableDefaultPackages = true;
+    fontconfig = {
+      defaultFonts = {
+        serif = [ "Noto Serif" ];
+        sansSerif = [ "Noto Sans" ];
+      };
+    };
+    packages = with pkgs; [
+      noto-fonts
+      noto-fonts-cjk
+      noto-fonts-emoji
+      (nerdfonts.override { fonts = [ "CascadiaCode" ]; })
+    ];
+  };
+
+  environment.systemPackages = [
+    inputs.nixvim.packages.${pkgs.system}.default
+  ];
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.kaitotlex = {
+    isNormalUser = true;
+    description = "KaitoTLex";
+    extraGroups = [
+      "networkmanager"
+      "wheel"
+    ];
+  };
+
+  programs.fish.enable = true;
+  users.users.kaitotlex.shell = pkgs.fish;
+}