doas ifconfig urtwn0 scan | awk -v q='"' '
  BEGIN { print "["; first=1 }
  /nwid/ {
    ssid=""; chan=""; bssid=""; signal="";
    for (i=1; i<=NF; i++) {
      if ($i == "nwid") ssid = $(i+1);
      if ($i == "chan") chan = $(i+1);
      if ($i == "bssid") bssid = $(i+1);
      if ($i ~ /^-[0-9]+dBm$/) signal = $i;
    }
    if (ssid != "") {
      if (!first) printf ",";
      first=0;
      gsub(q, "\\" q, ssid);
      printf "{\"ssid\":%s%s%s,\"channel\":%s,\"bssid\":\"%s\",\"signal\":\"%s\"}",
             q, ssid, q, chan, bssid, signal;
    }
  }
  END { print "]" }' | jq -c 2>/dev/null || echo '[]'