serf: disable automatic |pack
serf: disable automatic |pack

|pack currently only works up to some threshold of memory usage,
so it's unsafe to run automatically

urbit/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit