Follow the steps below. Your server address is watch.thearchive.run and your credentials are the ones you created during signup.
From the Roku home screen, select Streaming Channels → Search Channels → type "Jellyfin". Install the official Jellyfin channel.
If the channel offers a "scan QR code" option, ignore it.
Type watch.thearchive.run exactly. No https://, no slashes. Click Connect.
Username and password are the ones you created during account signup.
You should see the catalog. First load may take 30 seconds while it thumbnails.
If something isn't working, report it in the Discord server. KELVIN will help route your question, or a floor manager will respond directly.