This means that anyone can download and install PeerTube to host videos on a specific domain name (this is called "hosting a PeerTube platform/website").
We recommend you to create your own digital identity, without using "PeerTube" for your project (software name, website domain...) to not confuse people about who is behind the website/project.
While viewers themselves contribute a little additional bandwidth while watching the video in their browsers (mostly during surges), mirroring servers have a much greater uplink and will help your instance with sustained higher concurrent streaming.
