feat!: dynamically create hosts

This commit completely restructures the flake. Hosts are now seperate
from profile configuration files in hosts/[system]. Nixos and Darwin
configurations will be built when present in the respective folders in hosts/

profiles/server/nixos/jellyfin.nix

@@ -0,0 +1,44 @@
+{ pkgs, lib, config, ... }:
+{
+  config = lib.mkIf config.swarselsystems.server.jellyfin {
+    users.users.jellyfin = {
+      extraGroups = [ "video" "render" "users" ];
+    };
+    nixpkgs.config.packageOverrides = pkgs: {
+      vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
+    };
+    hardware.graphics = {
+      enable = true;
+      extraPackages = with pkgs; [
+        intel-media-driver # LIBVA_DRIVER_NAME=iHD
+        vaapiIntel # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
+        vaapiVdpau
+        libvdpau-va-gl
+      ];
+    };
+    services.jellyfin = {
+      enable = true;
+      user = "jellyfin";
+      openFirewall = true; # this works only for the default ports
+    };
+
+    services.nginx = {
+      virtualHosts = {
+        "screen.swarsel.win" = {
+          enableACME = true;
+          forceSSL = true;
+          acmeRoot = null;
+          locations = {
+            "/" = {
+              proxyPass = "http://localhost:8096";
+              extraConfig = ''
+                client_max_body_size 0;
+              '';
+            };
+          };
+        };
+      };
+    };
+  };
+
+}