feat: add lobtop darwin host (#460)

* feat: add lobtop darwin host

Adds a new macOS host for the work laptop (LOB-MG2QJH49W7), configured
under hosts/lobtop and registered as darwinConfigurations.lobtop.

Also adds a configDir parameter to mkDarwinHost (and mkNixosHost for
consistency) so the flake key and config directory can differ from the
actual system hostname.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: register lobtop SSH key

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: authorize lobtop key for mu SSH access

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore: drop unused args in lobtop host files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: map LOB-* hostname to lobtop in prompt and justfile

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: update dock items

* chore: update primaryUser

* chore: update username

* fix: update primaryUser and home dir for corey.johns username

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: update Things path

* feat: enable Craft

* fix: lowercase alias

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: stackptr

flake.nix

@@ -126,6 +126,12 @@
             hostname = "Stroma";
             username = "corey";
           };
+
+          lobtop = mkDarwinHost {
+            hostname = "LOB-MG2QJH49W7";
+            username = "corey.johns";
+            configDir = "lobtop";
+          };
         };
 
         deploy = {

home/programs/starship.nix

@@ -87,6 +87,9 @@
         format = "[@$hostname ]($style)";
         style = "bg:color_orange fg:color_fg0";
         disabled = false;
+        aliases = {
+          "LOB-MG2QJH49W7" = "lobtop";
+        };
       };
       directory = {
         style = "fg:color_fg0 bg:color_yellow";

hosts/lobtop/default.nix

@@ -0,0 +1,14 @@
+_: {
+  imports = [
+    ./dock.nix
+    ./hardware.nix
+    ./programs.nix
+  ];
+
+  rc.darwin.defaults = {
+    fonts = true;
+    homebrew = true;
+    security = true;
+    system = true;
+  };
+}

hosts/lobtop/dock.nix

@@ -0,0 +1,20 @@
+_: {
+  system.defaults.dock = {
+    tilesize = 42;
+    largesize = 86;
+    persistent-apps = [
+      "/System/Volumes/Preboot/Cryptexes/App/System/Applications/Safari.app"
+      "/System/Applications/Mail.app"
+      "/Applications/Zed.app"
+      "/Applications/rootshell.app"
+      "/Applications/Reeder.app"
+      "/System/Applications/Calendar.app"
+      "/System/Applications/Reminders.app"
+      "/System/Applications/Notes.app"
+      "/Applications/Things.app"
+      "/Applications/Craft.app"
+      "/System/Applications/Messages.app"
+      "/Applications/Slack.app"
+    ];
+  };
+}

hosts/lobtop/hardware.nix

@@ -0,0 +1,11 @@
+_: {
+  users.users."corey.johns" = {
+    home = "/Users/corey.johns";
+  };
+  system.primaryUser = "corey.johns";
+
+  networking.hostName = "LOB-MG2QJH49W7";
+
+  system.stateVersion = 5;
+  nixpkgs.hostPlatform = "aarch64-darwin";
+}

hosts/lobtop/key.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOXjSJpXPnmfSS87TTtN2a+VM/jBQav5JRe5GaBz75gC corey.johns@lobtop

hosts/lobtop/programs.nix

@@ -0,0 +1,18 @@
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [
+    m-cli
+    mas
+    the-unarchiver
+  ];
+
+  homebrew = {
+    enable = true;
+    # N.B.: Removed entries in `masApps` require manual uninstallation
+    masApps = {
+    };
+  };
+
+  programs.craft = {
+    enable = true;
+  };
+}

justfile

@@ -1,7 +1,8 @@
 # Build the system config and switch to it when running `just` with no args
 default: switch
 
-hostname := `hostname | cut -d "." -f 1`
+# Substitute work laptop hostname if necessary
+hostname := `h=$(hostname | cut -d "." -f 1); case "$h" in LOB-*) echo "lobtop";; *) echo "$h";; esac`
 
 [macos]
 switch host=hostname:

lib/hosts.nix

@@ -23,13 +23,14 @@ inputs @ {
   mkHomeManager = {
     username,
     hostname,
+    configDir,
     system,
     showBatteryStatus,
     lightweight ? false,
   }: let
     pkgs-stable-25-11 = import nixpkgs-stable-25-11 {inherit system;};
     pkgs-stable-24-05 = import nixpkgs-stable-24-05 {inherit system;};
-    hostHomePath = ./../hosts/${hostname}/home.nix;
+    hostHomePath = ./../hosts/${configDir}/home.nix;
     hostHomeConfig =
       if builtins.pathExists hostHomePath
       then hostHomePath
@@ -57,6 +58,7 @@ inputs @ {
     system,
     username,
     lightweight ? false,
+    configDir ? hostname,
   }:
     nixpkgs.lib.nixosSystem {
       inherit system;
@@ -70,11 +72,11 @@ inputs @ {
         disko.nixosModules.disko
         ./../modules/base
         ./../modules/nixos
-        ./../hosts/${hostname}
+        ./../hosts/${configDir}
         agenix.nixosModules.default
         home-manager.nixosModules.home-manager
         (mkHomeManager {
-          inherit username hostname system lightweight;
+          inherit username hostname system lightweight configDir;
           showBatteryStatus = false;
         })
         {
@@ -90,6 +92,7 @@ inputs @ {
     hostname,
     username,
     lightweight ? false,
+    configDir ? hostname,
   }: let
     system = "aarch64-darwin";
   in
@@ -105,10 +108,10 @@ inputs @ {
         nix-homebrew.darwinModules.nix-homebrew
         ./../modules/base
         ./../modules/darwin
-        ./../hosts/${hostname}
+        ./../hosts/${configDir}
         home-manager.darwinModules.home-manager
         (mkHomeManager {
-          inherit username hostname system lightweight;
+          inherit username hostname system lightweight configDir;
           showBatteryStatus = true;
         })
         {

lib/keys.nix

@@ -8,6 +8,7 @@ let
       value = readKey h;
     }) [
       "glyph"
+      "lobtop"
       "Rhizome"
       "spore"
       "Stroma"