Add new server modules and configurations for various services

- Introduced `default-creds` module for managing default credentials with Umami integration.
- Added `fail2ban` module for brute-force attack protection with configurable ban times.
- Created `firewall` module to enable and configure basic firewall settings.
- Implemented `gitea` module for self-hosted Git service with PostgreSQL backend.
- Developed `glance` module for a customizable dashboard with various widgets and themes.
- Added `iknowyou` module for a self-hosted password manager with production and demo environments.
- Introduced `kernel-hardening` module for enhancing kernel security settings.
- Created `mazanoke` module for a simple web application with Nginx integration.
- Added `mealie` module for a self-hosted meal planning application.
- Implemented `stirling-pdf` module for PDF generation service.
- Developed `umami` module for self-hosted analytics with secret management.
- Added `ssh` module for secure SSH configuration with user restrictions.
- Introduced `nixy` theme for a customized aesthetic experience across services.

hosts/server/home.nix

@@ -0,0 +1,32 @@
+{config, ...}: {
+  imports = [
+    # Mostly user-specific configuration
+    ./variables.nix
+
+    # Programs
+    ../../home/programs/nvf
+    ../../home/programs/shell
+    ../../home/programs/git
+    ../../home/programs/git/lazygit.nix
+    ../../home/programs/nixy
+    ../../home/programs/nix-utils
+    ../../home/programs/yazi
+
+    ../../home/programs/group/dev.nix
+  ];
+
+  home = {
+    inherit (config.var) username;
+    homeDirectory = "/home/" + config.var.username;
+
+    # Don't touch this
+    stateVersion = "24.05";
+  };
+
+  programs.home-manager.enable = true;
+
+  programs.nixy = {
+    enable = true;
+    configDirectory = config.var.configDirectory;
+  };
+}