Fix: correct host name and convenience changes

We used the domain name instead of the host name, which obviously
doesn't work for multiple host. In addition to that I changed some
directory to make importing easier and enabled the "nix-command" and
"flakes" experimental options, to make the `nix flake check` command
usable.

Refs: #15

13 files changed, 38 insertions, 9 deletions

diff --git a/flake.nix b/flake.nix
index a6d95b6..2e52203 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,10 +11,10 @@
     nixpkgs,
     ...
   } @ attrs: {
-    nixosConfigurations."vhack.eu" = nixpkgs.lib.nixosSystem {
+    nixosConfigurations."server1" = nixpkgs.lib.nixosSystem {
       system = "x86_64-linux";
       specialArgs = attrs;
-      modules = [./hosts/vhack.eu/configuration.nix];
+      modules = [./hosts/server1/configuration.nix];
     };
   };
 }
diff --git a/hosts/vhack.eu/configuration.nix b/hosts/server1/configuration.nix
index a58e58d..6f91fc0 100644
--- a/hosts/vhack.eu/configuration.nix
+++ b/hosts/server1/configuration.nix
@@ -2,14 +2,9 @@
   imports = [
     ./networking.nix # network configuration that just works
 
-    ../../system/hardware.nix
-    ../../system/fileSystemLayouts.nix
-    ../../system/packages.nix
-    ../../system/users.nix
+    ../../system/system.nix
 
-    ../../services/minecraft.nix
-    ../../services/rust-motd.nix
-    ../../services/opensshd.nix
+    ../../services/services.nix
   ];
 
   boot.cleanTmpDir = true;
diff --git a/hosts/vhack.eu/networking.nix b/hosts/server1/networking.nix
index 26d6719..26d6719 100644
--- a/hosts/vhack.eu/networking.nix
+++ b/hosts/server1/networking.nix
diff --git a/services/services.nix b/services/services.nix
new file mode 100644
index 0000000..6983529
--- /dev/null
+++ b/services/services.nix
@@ -0,0 +1,8 @@
+{config, ...}: {
+  imports = [
+    ./services/minecraft.nix
+    ./services/nix.nix
+    ./services/opensshd.nix
+    ./services/rust-motd.nix
+  ];
+}
diff --git a/services/minecraft.nix b/services/services/minecraft.nix
index 5882d9a..5882d9a 100644
--- a/services/minecraft.nix
+++ b/services/services/minecraft.nix
diff --git a/services/services/nix.nix b/services/services/nix.nix
new file mode 100644
index 0000000..bd562ec
--- /dev/null
+++ b/services/services/nix.nix
@@ -0,0 +1,18 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  nix = {
+    #    gc = {
+    #      automatic = true;
+    #      dates = "daily";
+    #      options = "--delete-older-than 3";
+    #    };
+    settings = {
+      auto-optimise-store = true;
+      experimental-features = ["nix-command" "flakes"];
+    };
+  };
+}
diff --git a/services/opensshd.nix b/services/services/opensshd.nix
index cb9f2ba..cb9f2ba 100644
--- a/services/opensshd.nix
+++ b/services/services/opensshd.nix
diff --git a/services/rust-motd.nix b/services/services/rust-motd.nix
index 21bc1cd..21bc1cd 100644
--- a/services/rust-motd.nix
+++ b/services/services/rust-motd.nix
diff --git a/system/system.nix b/system/system.nix
new file mode 100644
index 0000000..2af4982
--- /dev/null
+++ b/system/system.nix
@@ -0,0 +1,8 @@
+{config, ...}: {
+  imports = [
+    ./system/fileSystemLayouts.nix
+    ./system/hardware.nix
+    ./system/packages.nix
+    ./system/users.nix
+  ];
+}
diff --git a/system/fileSystemLayouts.nix b/system/system/fileSystemLayouts.nix
index 9d03a05..9d03a05 100644
--- a/system/fileSystemLayouts.nix
+++ b/system/system/fileSystemLayouts.nix
diff --git a/system/hardware.nix b/system/system/hardware.nix
index c4c7dc9..c4c7dc9 100644
--- a/system/hardware.nix
+++ b/system/system/hardware.nix
diff --git a/system/packages.nix b/system/system/packages.nix
index 4d33c6e..4d33c6e 100644
--- a/system/packages.nix
+++ b/system/system/packages.nix
diff --git a/system/users.nix b/system/system/users.nix
index 34e1648..34e1648 100644
--- a/system/users.nix
+++ b/system/system/users.nix