now using flake-parts; refactored nixosConfigurations; using hm standalone

hosts/modules/common/users.nix

@@ -0,0 +1,29 @@
+{ pkgs, ... }:
+
+{
+  users.users = {
+    user = {
+      isNormalUser = true;
+      shell = pkgs.fish;
+      extraGroups = [
+        "networkmanager"
+        "wheel"
+      ];
+      openssh.authorizedKeys.keys = [
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA1v3+q3EaruiiStWjubEJWvtejam/r41uoOpCdwJtLL user@rotterdam"
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO3Y0PVpGfJHonqDS7qoCFhqzUvqGq9I9sax+F9e/5cs user@io"
+      ];
+      hashedPassword = "$6$Pj7v/CpstyuWQQV0$cNujVDhfMBdwlGVEnnd8t71.kZPixbo0u25cd.874iaqLTH4V5fa1f98V5zGapjQCz5JyZmsR94xi00sUrntT0";
+    };
+    root = {
+      shell = pkgs.fish;
+      hashedPassword = "!";
+    };
+  };
+  programs.fish = {
+    enable = true;
+    interactiveShellInit = ''
+      set fish_greeting
+    '';
+  };
+}