Pick a protocol/place, any protocol/place:

gemini://sdf.org/sufficient/
gemini://tilde.club/~oldernow/
gopher://sdf.org/1/users/sufficient/
gopher://tilde.club/1/~oldernow/
http://sufficient.freeshell.org
https://tilde.club/~oldernow/Sufficient
nex://nightfall.city/shore/sufficient/