backwards: Add ssh module

hosts/backwards/configuration.nix

@@ -78,8 +78,6 @@
     pkgs.vim
   ];
 
-  services.openssh.enable = true;
-
   config-manager = {
     flakePath = "/home/alex/config";
   };

hosts/backwards/modules/default.nix

@@ -7,6 +7,8 @@ in
   imports = lib.mapAttrsToList toModulePath (filterDirs (builtins.readDir ./.));
 
   config = {
-    mod = {};
+    mod = {
+      ssh.enable = true;
+    };
   };
 }

hosts/backwards/modules/ssh/default.nix

@@ -0,0 +1,32 @@
+{ lib, config, ... }:
+let
+  enabled = config.mod.ssh.enable;
+in
+{
+  options = {
+    mod.ssh = {
+      enable = lib.mkEnableOption "enable ssh module";
+    };
+  };
+
+  config = lib.mkIf enabled {
+    home-manager.users.alex = {
+      programs.ssh = {
+        enable = true;
+      };
+    };
+
+    services = {
+      openssh = {
+        enable = true;
+        ports = [ 1122 ];
+      };
+    };
+
+    networking = {
+      firewall = {
+        allowedTCPPorts = [ 1122 ];
+      };
+    };
+  };
+}