It can also be displayed on external websites to promote your instance, such as <x id="START_LINK" ctype="x-a" equiv-text="<a target="_blank"href="https://joinpeertube.org/instances">"/>JoinPeerTube.org<x id="CLOSE_LINK" ctype="x-a" equiv-text="</a>"/>.
Use <x id="START_LINK" ctype="x-a" equiv-text="<a routerLink="/admin/system/runners/runners-list">"/>remote runners<x id="CLOSE_LINK" ctype="x-a" equiv-text="</a>"/> to process transcription tasks. Remote runners has to register on your instance first.
This is just an extra information injected in PeerTube HTML that is required by Twitter/X. If you don't have a Twitter/X account, just leave the default value.