the break though:
arc> (= app (thread (asv))) #<thread> arc> ready to serve port 8080 (break-thread app) . #<void> . ac.scm::34123: user break
(thread (asv)) (... work ...) (assert quitsrv*)
For more info on Arc, see kens' excellent guides on http://arcfn.com http://arcfn.com/doc/index.html
-----