research: public/private relays availability

[gitaaron]

The IPFS-Cluster docs mention:

This network does not interact with the main IPFS network, nor with other private IPFS networks and is solely used so that Cluster peers can communicate and operate
...
This also means that Cluster peers operate separately from IPFS with regards to NAT hole punching, ports etc.

So we need to figure out how we can set up our own relays for private networking use cases such as for data syncing

A few thoughts are:

1. Can we make use of the public relays then upgrade to a private network somehow? If the answer is 'yes' then I would also ask if BOX customers should rely on public infra. for any use case involving replication?

2. Perhaps data syncing can simply be a paid service in the fula network? The resource miner in this case would be a relay.