Use (quit) to quit, (tl) to return here after an interrupt.
arc> (defop said req
(aform [w/link (pr "you said: " (arg _ "foo")) (pr "click here")] (input "foo") (submit)))
arc> (asv 80)
The syntax of the command is incorrect.
Error: "tcp-listen: listen on 80 failed (An address incompatible with the requested protocol was used.; errno=10047)"
That "The syntax of the command is incorrect." is probably a clue, but where to look and for what?