The cool thing is you can just host your own knot then. Host repos of whatever size you want.
Man I really want to like this thing but this jargon is so stupid.
The jargon is just naming the free-standing components after rope/string related things. i.e. tangle, knot, spindle, etc.
Just call them what they are. Federations/networks, servers, repositories...
I think they're mad because 'knot' is a furry fetish term.