{
  "base_url" : "https://drake-packages.csail.mit.edu/drake/",
  "build" : "continuous",
  "version" : "latest",
  "mac_version" : "latest",
  "__comment__build_version__options__" : {
    "nightly" : "'latest' or a date, e.g. '20170719'.  Nightlies have the date of the prior evening (not the morning after)",
    "continuous" : "'latest'",
    "experimental" : "<timestamp>-<commit> ; see README.md"
  }
}