Iframe jellySeerr in JellyFin
Add @import url('https://cdn.jsdelivr.net/gh/matthijsvrenswoude/IframeJellySeerr/jellyseerr-update.css'); in Jellyseer docker volume to the beginning of any css file in app -> .next -> static -> css
Add @import url('https://cdn.jsdelivr.net/gh/matthijsvrenswoude/IframeJellySeerr/jellyfin-expansion.css'); to Jellyfin dashboard -> admin settings -> General -> Custom CSS
Download and build https://github.com/jellyfin/jellyfin-web except with the following file overwrites:
Remove all contents from C:\Program Files\Jellyfin\Server\jellyfin-web and move over everything from github jellyfin-web newly created dist folder
Optional: Add @import url("https://cdn.jsdelivr.net/npm/jellyskin@latest/dist/main.css"); to Jellyfin Dashboard -> General -> Custom CSS