Add linting, formatting, and CI infrastructure

- Add deadnix, nixfmt, and statix to flake inputs
- Add formatter output to flake for nix fmt support
- Add deadnix, nixfmt, statix to Home Manager packages
- Add GitHub Actions workflow for CI validation
- Add .pre-commit-config.yaml with hooks for nixfmt, deadnix, and statix
- Support x86_64-darwin in formatter

modules/hosts/nixos/rainbow-planet/default.nix

@@ -1,4 +1,11 @@
-{ inputs, config, pkgs, username, ... }: {
+{
+  inputs,
+  config,
+  pkgs,
+  username,
+  ...
+}:
+{
   imports = [
     ./hardware-configuration.nix
     ../../../shared/nixos/flatpaks.nix
@@ -14,7 +21,7 @@
     };
     loader = {
       efi.canTouchEfiVariables = true;
-      systemd-boot= {
+      systemd-boot = {
         enable = true;
         consoleMode = "1";
       };
@@ -108,9 +115,13 @@
     boinc.enable = true;
     bpftune.enable = true;
     dbus.implementation = "broker";
-    desktopManager.cosmic.enable = false;
-    desktopManager.cosmic.xwayland.enable = false;
-    desktopManager.plasma6.enable = true;
+    desktopManager = {
+      cosmic = {
+        enable = false;
+        xwayland.enable = false;
+      };
+      plasma6.enable = true;
+    };
     displayManager.cosmic-greeter.enable = false;
     displayManager.sddm = {
       enable = true;
@@ -179,7 +190,15 @@
   users.users.${username} = {
     isNormalUser = true;
     description = "Gene Liverman";
-    extraGroups = [ "adbusers" "dialout" "docker" "input" "networkmanager" "podman" "wheel" ];
+    extraGroups = [
+      "adbusers"
+      "dialout"
+      "docker"
+      "input"
+      "networkmanager"
+      "podman"
+      "wheel"
+    ];
     packages = with pkgs; [
       tailscale-systray
     ];

modules/hosts/nixos/rainbow-planet/gnome.nix

@@ -1,4 +1,5 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
+{
   environment.systemPackages = with pkgs; [
     gnome.gnome-tweaks
     gnome.nautilus
@@ -15,7 +16,7 @@
     gnome.gnome-keyring.enable = true; # Provides secret storage
     gvfs.enable = true; # Used by Nautilus
     xserver = {
-      enable = true;    # Enable the X11 windowing system.
+      enable = true; # Enable the X11 windowing system.
 
       # Configure keymap in X11
       xkb = {
@@ -33,4 +34,3 @@
     };
   };
 }
-

modules/hosts/nixos/rainbow-planet/hardware-configuration.nix

@@ -1,36 +1,56 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, modulesPath, pkgs, ... }:
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
-
-  boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
-  # boot.kernelPackages = pkgs.linuxPackages_zen;
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ "kvm-intel" "sg" ];
-  boot.kernelParams = [
-    "i915.enable_fbc=1"
-    "i915.enable_psr=2"
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
   ];
-  boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/eb9a2c7e-ae61-4d06-9464-49b98d576f7c";
+  boot = {
+    initrd = {
+      availableKernelModules = [
+        "xhci_pci"
+        "nvme"
+        "usb_storage"
+        "sd_mod"
+        "rtsx_pci_sdmmc"
+      ];
+      # boot.kernelPackages = pkgs.linuxPackages_zen;
+      kernelModules = [ ];
+    };
+    kernelModules = [
+      "kvm-intel"
+      "sg"
+    ];
+    kernelParams = [
+      "i915.enable_fbc=1"
+      "i915.enable_psr=2"
+    ];
+    extraModulePackages = [ ];
+  };
+
+  fileSystems = {
+    "/" = {
+      device = "/dev/disk/by-uuid/eb9a2c7e-ae61-4d06-9464-49b98d576f7c";
       fsType = "ext4";
     };
 
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/924D-E7A4";
+    "/boot" = {
+      device = "/dev/disk/by-uuid/924D-E7A4";
       fsType = "vfat";
     };
+  };
 
-  swapDevices =
-    [ { device = "/dev/disk/by-uuid/166d24ca-401c-492e-845d-bb1d0d6d7d86"; }
-    ];
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/166d24ca-401c-492e-845d-bb1d0d6d7d86"; }
+  ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's

modules/hosts/nixos/rainbow-planet/home-gene.nix

@@ -1,4 +1,5 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
+{
   home.stateVersion = "23.11";
   imports = [
     ../../../shared/home/general/all-gui.nix
@@ -10,12 +11,14 @@
   ];
 
   home.file = {
-    ".config/hypr/frappe.conf".source = (pkgs.fetchFromGitHub {
-      owner = "catppuccin";
-      repo = "hyprland";
-      rev = "99a88fd21fac270bd999d4a26cf0f4a4222c58be";
-      hash = "sha256-07B5QmQmsUKYf38oWU3+2C6KO4JvinuTwmW1Pfk8CT8=";
-    } + "/themes/frappe.conf");
+    ".config/hypr/frappe.conf".source =
+      pkgs.fetchFromGitHub {
+        owner = "catppuccin";
+        repo = "hyprland";
+        rev = "99a88fd21fac270bd999d4a26cf0f4a4222c58be";
+        hash = "sha256-07B5QmQmsUKYf38oWU3+2C6KO4JvinuTwmW1Pfk8CT8=";
+      }
+      + "/themes/frappe.conf";
   };
 
   programs = {
@@ -32,7 +35,7 @@
     settings = {
       global = {
         frame_color = "#8CAAEE";
-        separator_color= "frame";
+        separator_color = "frame";
       };
 
       urgency_low = {