problem

⚠️ mediocre code ahead (ref: https://github.com/cdaringe/protohacks/blob/c4e00f6f55b991d780d46f012a460bb8a528c505/lib/server/server.ml#L33-L44)

      let client_addr, r = recv socket buf in
      traceln "ack";

ack is never emitted when empty packets are sent. yes, ack is objectively the wrong debug word in this scenario 😆

i'm using linux in docker, so perhaps something with the libuv bindings? in the wireshark snippet above, you can see the service retrying, hoping i'll send them a response, but sure enough, the first time they send me an empty packet, i'm unable to proceed passed recv