feat(kicad): add KICAD9_FOOTPRINT_DIR session variable for footprint libraries

Declaratively manage Claude Code skills through home-manager by fetching
plugin repos as non-flake inputs and symlinking their skills directories.

configuration.nix

@@ -156,6 +156,11 @@
   # Allow /etc/hosts to be modified without system rebuild
   environment.etc.hosts.mode = "0644";
 
+  # KiCad footprint libraries
+  environment.sessionVariables = {
+    KICAD9_FOOTPRINT_DIR = "${pkgs.kicad-libraries.footprints}/share/kicad/footprints";
+  };
+
   # Enable flakes and extras
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
 
@@ -176,26 +181,49 @@
 
   # WireGuard VPN
   networking.wg-quick.interfaces.wg0 = {
-    address = [ "10.0.1.66/28" ];
+    address = [ "10.0.1.67/32" ];
+    dns = [ "10.0.1.65" ];
     privateKeyFile = "/etc/wireguard/private.key";
 
     peers = [{
       publicKey = "VEpzr/CeGdS6Wsy0NDDfmlB/bCYxS55A155HWGCIIzc=";
       endpoint = "vpn.leeworks.dev:51820";
-      allowedIPs = [ "10.0.1.64/28" ];
+      # Route all traffic through VPN EXCEPT the local 10.0.0.0/24 network
+      allowedIPs = [
+        "0.0.0.0/5"
+        "8.0.0.0/7"
+        "10.0.1.0/24"
+        "10.0.2.0/23"
+        "10.0.4.0/22"
+        "10.0.8.0/21"
+        "10.0.16.0/20"
+        "10.0.32.0/19"
+        "10.0.64.0/18"
+        "10.0.128.0/17"
+        "10.1.0.0/16"
+        "10.2.0.0/15"
+        "10.4.0.0/14"
+        "10.8.0.0/13"
+        "10.16.0.0/12"
+        "10.32.0.0/11"
+        "10.64.0.0/10"
+        "10.128.0.0/9"
+        "11.0.0.0/8"
+        "12.0.0.0/6"
+        "16.0.0.0/4"
+        "32.0.0.0/3"
+        "64.0.0.0/2"
+        "128.0.0.0/1"
+      ];
       persistentKeepalive = 25;
     }];
   };
 
-  services.tailscale = {
-    enable = true;
-    useRoutingFeatures = "client";  # or "both" for subnet routing
-  };
 
   # Open firewall for Tailscale
   networking.firewall = {
     checkReversePath = "loose";
-    trustedInterfaces = [ "tailscale0" ];
+    trustedInterfaces = [ "tailscale0" "wg0" ];
     allowedUDPPorts = [ config.services.tailscale.port ];
   };
 
@@ -229,6 +257,7 @@
   # Enable necessary services
   xdg.portal = {
     enable = true;
+    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
   };
 
   services.pcscd.enable = true;

flake.lock

@@ -1,5 +1,21 @@
 {
   "nodes": {
+    "caveman": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1776507098,
+        "narHash": "sha256-M+NoWXxrhtbkbe/lmq7P0/KpmqOZzJjhgeUVjY+7N2k=",
+        "owner": "JuliusBrussee",
+        "repo": "caveman",
+        "rev": "84cc3c14fa1e10182adaced856e003406ccd250d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "JuliusBrussee",
+        "repo": "caveman",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -76,11 +92,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1775126147,
-        "narHash": "sha256-J0dZU4atgcfo4QvM9D92uQ0Oe1eLTxBVXjJzdEMQpD0=",
+        "lastModified": 1776329215,
+        "narHash": "sha256-a8BYi3mzoJ/AcJP8UldOx8emoPRLeWqALZWu4ZvjPXw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8d8c1fa5b412c223ffa47410867813290cdedfef",
+        "rev": "b86751bc4085f48661017fa226dee99fab6c651b",
         "type": "github"
       },
       "original": {
@@ -106,12 +122,30 @@
         "type": "github"
       }
     },
+    "oh-my-claudecode": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1776693787,
+        "narHash": "sha256-C/m8Vlt6MXy8nlgqtoey9A5JnVTHCPkGUjar9x5Y2uw=",
+        "owner": "Yeachan-Heo",
+        "repo": "oh-my-claudecode",
+        "rev": "084fc47266824b35f4c8cbe886c0990ae716c184",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Yeachan-Heo",
+        "repo": "oh-my-claudecode",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
+        "caveman": "caveman",
         "home-manager": "home-manager",
         "kickstart-nvim": "kickstart-nvim",
         "nixpkgs": "nixpkgs_2",
-        "nixpkgs-unstable": "nixpkgs-unstable"
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "oh-my-claudecode": "oh-my-claudecode"
       }
     },
     "systems": {

flake.nix

@@ -9,9 +9,17 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     kickstart-nvim.url = "github:0xWheatyz/kickstart.nvim";
+    caveman = {
+      url = "github:JuliusBrussee/caveman";
+      flake = false;
+    };
+    oh-my-claudecode = {
+      url = "github:Yeachan-Heo/oh-my-claudecode";
+      flake = false;
+    };
   };
 
-  outputs = { self, nixpkgs, nixpkgs-unstable, home-manager, kickstart-nvim, ... }:
+  outputs = { self, nixpkgs, nixpkgs-unstable, home-manager, kickstart-nvim, caveman, oh-my-claudecode, ... }:
     let
       system = "x86_64-linux";
       pkgs-unstable = import nixpkgs-unstable {
@@ -31,7 +39,7 @@
             home-manager.useUserPackages = true;
             home-manager.users.l-wyatt = import ./home.nix;
             home-manager.extraSpecialArgs = {
-              inherit kickstart-nvim;
+              inherit kickstart-nvim caveman oh-my-claudecode;
             };
             home-manager.sharedModules = [
               kickstart-nvim.homeManagerModules.default

home.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, lib, caveman, oh-my-claudecode, ... }:
 
 {
   home.username = "l-wyatt";
@@ -28,6 +28,7 @@
     gnomeExtensions.just-perfection
     gnomeExtensions.arc-menu
     freecad
+    gtk3  # Provides org.gtk.Settings.FileChooser schema for FreeCAD
   ];
 
   # --------------------------
@@ -206,6 +207,20 @@
   # Use kickstart.nvim configuration from flake
   programs.neovim-kickstart.enable = true;
 
+  # Claude Code skills (managed declaratively via flake inputs)
+  home.file.".claude/skills/caveman" = {
+    source = "${caveman}/skills/caveman";
+    recursive = true;
+  };
+  home.file.".claude/skills/caveman-help" = {
+    source = "${caveman}/skills/caveman-help";
+    recursive = true;
+  };
+  home.file.".claude/skills/oh-my-claudecode" = {
+    source = "${oh-my-claudecode}/skills";
+    recursive = true;
+  };
+
   # Claude Code configuration
   home.file.".claude/CLAUDE.md" = {
     text = ''