Basic configuration for new servers and start modularizing config

modules/default.nix

@@ -0,0 +1,70 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [
+    ./default/secret.nix
+    ./docker.nix
+    ./git.nix
+    ./nginx.nix
+    ./ovh.nix
+    ./ssh.nix
+    ./sshd.nix
+    ./syncthing-server.nix
+    ./zfs.nix
+    ./zsh.nix
+  ];
+
+  options.chvp = {
+    stateVersion = lib.mkOption {
+      example = "20.09";
+    };
+
+    dataPrefix = lib.mkOption {
+      default = "";
+      example = "/data";
+    };
+
+    cachePrefix = lib.mkOption {
+      default = "";
+      example = "/cache";
+    };
+
+    graphical = lib.mkOption {
+      default = false;
+      example = true;
+    };
+  };
+
+  config = {
+    home-manager.useGlobalPkgs = true;
+
+    system.stateVersion = config.chvp.stateVersion;
+    home-manager.users = {
+      charlotte = { ... }: {
+        home.stateVersion = config.chvp.stateVersion;
+      };
+      root = { ... }: {
+        home.stateVersion = config.chvp.stateVersion;
+      };
+    };
+
+    environment.systemPackages = with pkgs; [
+      htop
+      ncdu
+      ripgrep
+    ];
+
+    users = {
+      mutableUsers = false;
+      defaultUserShell = pkgs.zsh;
+      users = {
+        charlotte = {
+          isNormalUser = true;
+          home = "/home/charlotte";
+          description = "Charlotte Van Petegem";
+          extraGroups = [ "wheel" "systemd-journal" ];
+        };
+      };
+    };
+  };
+}