@type erts_source() ::
  {:unresolved | :runtime | :precompiled | :local | :local_unpacked | :url,
   keyword() | atom()}

@type t() :: %Burrito.Builder.Target{
  alias: atom(),
  cpu: atom(),
  cross_build: boolean(),
  debug?: boolean(),
  erts_source: erts_source(),
  os: atom(),
  qualifiers: keyword()
}