META:
* readme
  requirements
  install instructions
  usage
* release with binary

FEATURES:
* specify channels to send in and store them
* basic commands
  add
  print
  remove
  clear
  help
* mention the bot to do stuff
* store the agenda in a configurable file
* print the agenda

ISSUES:
* build without voice support
* build only needed tokio features
* sending to slack is very slow

DONE:
* login
* send messages both ways

LATER: (rough ordering and scope)
* send reminders
  24h and 1h (?)
* more commands
  next
  plan
  skip
* allowed users
* customize meeting times
  store dates in a file? commands?
* customize reminders
* gcal