[geocar]

> If someone wishes to make a payment, Offset will find the best path via friendships to facilitate the transaction. What if a bunch of people are offline and no path can be found?

What do you think happens when Visanet is down?

My experience is people either delay their purchase, or they find some other medium to exchange.

> What algorithm do you use to compute the shortest/cheapest be path between two counterparties? Does this scale well in a distributed, self-hosted system?

That seems to be answered here; looks like it's not distributed.

https://docs.offsetcredit.org/en/latest/theory/network.html

> How does one establish a friendship/trust with another party, and who sets the credit limits for the relationship?

That seems to be answered by the demonstration videos; each party sets the credit limit they offer to all of their friends separately.