The documentation for Interledger appears to be for people who want to build software, not for people who want to send or receive money. And it talks about setting up accounts with xpring.io or rafiki.money.

I see no evidence that Interledger can be used for receiving money without having to set up accounts or run software. Plenty of evidence to the contrary.

As I said before, to receive bitcoin from one of these systems, there is nothing I should need to do other than advertise my bitcoin address. Anything more than that, and the system sucks.