restructure system to be toggable

modules/system/docker.nix

@@ -1,10 +1,16 @@
 { config, pkgs, ... }:
 
 {
-  virtualisation.docker = {
-    enable = true;
-    daemon.settings = {
-      experimental = true;
+  options = {
+    modules.system.docker.enable = lib.mkEnableOption "enables docker";
+  };
+
+  config = lib.mkIf config.modules.system.docker.enable {
+    virtualisation.docker = {
+      enable = true;
+      daemon.settings = {
+        experimental = true;
+      };
     };
   };
 }

modules/system/nvidia.nix

@@ -1,20 +1,26 @@
 { config, pkgs, lib, ... }:
 
 {
-  # enable nvidia proprietary driver
-  hardware.nvidia = {
-    modesetting.enable = true;  # required
-    open = false;   # use proprietary driver
-    nvidiaSettings = true; # no shit
-    powerManagement.enable = false; # can cause sleep issues
-    package = config.boot.kernelPackages.nvidiaPackages.stable;
+  options = {
+    modules.system.nvidia.enable = lib.mkEnableOption "enables nvidia";
   };
 
-  # install nvidia-smi
-  environment.systemPackages = with pkgs; [
-    nvidia-smi
-  ];
+  config = lib.mkIf config.modules.system.nvidia.enable {
+    # enable nvidia proprietary driver
+    hardware.nvidia = {
+      modesetting.enable = true;  # required
+      open = false;   # use proprietary driver
+      nvidiaSettings = true; # no shit
+      powerManagement.enable = false; # can cause sleep issues
+      package = config.boot.kernelPackages.nvidiaPackages.stable;
+    };
 
-  # enable docker gpu passthrough
-  virtualisation.docker.enableNvidia = true;
+    # install nvidia-smi
+    environment.systemPackages = with pkgs; [
+      nvidia-smi
+    ];
+
+    # enable docker gpu passthrough
+    virtualisation.docker.enableNvidia = true;
+  };
 }

modules/system/ssh.nix

@@ -1,15 +1,19 @@
 { config, lib, pkgs, ... }:
 
 {
-  # enable and configure openssh
-  services.openssh = {
-    enable = true;
-    settings = {
-      PasswordAuthentication = true;
-      PermitRootLogin = "no";
-      X11Forwarding = false;
-    };
+  options = {
+    modules.system.ssh.enable = lib.mkEnableOption "enables ssh";
   };
 
-
+  config = lib.mkIf config.modules.system.ssh.enable {
+    # enable and configure openssh
+    services.openssh = {
+      enable = true;
+      settings = {
+        PasswordAuthentication = true;
+        PermitRootLogin = "no";
+        X11Forwarding = false;
+      };
+    };
+  };
 }

modules/system/syncthing.nix

@@ -1,16 +1,22 @@
 { config, pkgs, ... }:
 
 {
-  services.syncthing = {
-    enable = true;
-    user = "blake";
-    group = "blake";
+  options = {
+    modules.system.syncthing.enable = lib.mkEnableOption "enables syncthing";
+  };
 
-    dataDir = "/home/blake/.local/state/syncthing";
-    configDir = "/home/blake/.config/syncthing";
+  config = lib.mkIf config.modules.system.syncthing.enable {
+    services.syncthing = {
+      enable = true;
+      user = "blake";
+      group = "blake";
 
-    # webui
-    guiAddress = "0.0.0.0:2222";
-    openDefaultPorts = true;
+      dataDir = "/home/blake/.local/state/syncthing";
+      configDir = "/home/blake/.config/syncthing";
+
+      # webui
+      guiAddress = "0.0.0.0:2222";
+      openDefaultPorts = true;
+    };
   };
 }

modules/system/tailscale.nix

@@ -1,10 +1,16 @@
 { config, pkgs, ... }:
 
 {
-  services.tailscale = {
-    enable = true;
+  options = {
+    modules.system.tailscale.enable = lib.mkEnableOption "enables tailscale";
+  };
 
-    useRoutingFeatures = "both";
-    authKeyFile = "/home/blake/.nix/.keyring/tailscale/authkey";
+  config = lib.mkIf config.modules.system.tailscale.enable {
+    services.tailscale = {
+      enable = true;
+
+      useRoutingFeatures = "both";
+      authKeyFile = "/home/blake/.nix/.keyring/tailscale/authkey";
+    };
   };
 }