Yeah if you aren’t down to publicly expose your IP address / port forward, the cheapest way I can think of still involves a several $/mo VPS that just reverse proxies home to a more powerful PC. That’s what I do since I’m behind CGNAT.

Not only is there the issue of getting approval from the video creators, there’s the issue that most PeerTube servers aren’t ready to handle a huge influx in uploads, as this would likely be a bulk operation.

Personally I think mirroring YouTube content would be more viable once ActivityPods lands and is integrated with PeerTube, which could potentially let you self host your PeerTube account data while still being part of a separate “home instance”, which would greatly help with the storage issue for PeerTube as we could all bring our own storage.