feat(global): add yt-dlp and aliases

modules/global/packages.nix

@@ -54,6 +54,7 @@
     whois
     xxHash
     yq
+    yt-dlp
     zip
   ];
 }

modules/global/shell.nix

@@ -78,5 +78,9 @@ in
 
     path = "tr ':' '\n' <<< \"$PATH\"";
     timestamp = "date +%s -d";
+
+    # yt-dlp
+    yt-m4a = ''yt-dlp -f "bestaudio[ext=m4a]" -o "%(title)s.%(ext)s"'';
+    yt-mp4 = ''yt-dlp -f "best[ext=mp4]" -o "%(title)s.%(ext)s"'';
   };
 }