servo: switch from jellyfin -> minidlna

hosts/by-name/servo/services/default.nix

@@ -17,6 +17,7 @@
     ./komga.nix
     ./lemmy.nix
     ./matrix
+    ./minidlna.nix
     ./mumble.nix
     ./navidrome.nix
     ./nginx.nix

hosts/by-name/servo/services/jellyfin.nix

@@ -13,8 +13,9 @@
 #   - config/system.xml: misc preferences like log file duration, audiobook resume settings, etc.
 #   - data/jellyfin.db: maybe account definitions? internal state?
 
-{ config, lib, ... }:
+{ lib, ... }:
 
+lib.mkIf false  #< XXX(2024-11-17): disabled because it hasn't been working for months; web UI hangs on load, TVs see no files
 {
   # https://jellyfin.org/docs/general/networking/index.html
   sane.ports.ports."1900" = {
@@ -43,6 +44,10 @@
   sane.persist.sys.byStore.plaintext = [
     { user = "jellyfin"; group = "jellyfin"; mode = "0700"; path = "/var/lib/jellyfin"; method = "bind"; }
   ];
+
+  services.jellyfin.enable = true;
+  users.users.jellyfin.extraGroups = [ "media" ];
+
   sane.fs."/var/lib/jellyfin/config/logging.json" = {
     # "Emby.Dlna" logging: <https://jellyfin.org/docs/general/networking/dlna>
     symlink.text = ''
@@ -71,6 +76,10 @@
     '';
   };
 
+  systemd.services.jellyfin.unitConfig.RequiresMountsFor = [
+    "/var/media"
+  ];
+
   # Jellyfin multimedia server
   # this is mostly taken from the official jellfin.org docs
   services.nginx.virtualHosts."jelly.uninsane.org" = {
@@ -80,6 +89,7 @@
 
     locations."/" = {
       proxyPass = "http://127.0.0.1:8096";
+      # TODO: just use `recommendedProxySettings = true;`?
       extraConfig = ''
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
@@ -121,9 +131,4 @@
   };
 
   sane.dns.zones."uninsane.org".inet.CNAME."jelly" = "native";
-
-  services.jellyfin.enable = true;
-  systemd.services.jellyfin.unitConfig.RequiresMountsFor = [
-    "/var/media"
-  ];
 }

hosts/by-name/servo/services/minidlna.nix

@@ -0,0 +1,38 @@
+# - `man 5 minidlna.conf`
+# - `man 8 minidlnad`
+#
+# this is an extremely simple (but limited) DLNA server:
+# - no web UI
+# - no runtime configuration -- just statically configure media directories instead
+# - no transcoding
+# compatibility:
+# - LG TV: music: all working
+# - LG TV: videos: mixed. i can't see the pattern; HEVC works; H.264 sometimes works.
+{ ... }:
+{
+  sane.ports.ports."1900" = {
+    protocol = [ "udp" ];
+    visibleTo.lan = true;
+    description = "colin-upnp-for-minidlna";
+  };
+  sane.ports.ports."8200" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    description = "colin-minidlna-http";
+  };
+
+  services.minidlna.enable = true;
+
+  services.minidlna.settings = {
+    media_dir = [
+      # A/V/P to restrict a directory to audio/video/pictures
+      "A,/var/media/Music"
+      "V,/var/media/Videos/Film"
+      # "V,/var/media/Videos/Milkbags"
+      "V,/var/media/Videos/Shows"
+    ];
+    notify_interval = 60;
+  };
+
+  users.users.minidlna.extraGroups = [ "media" ];
+}