defmodule TimeTrackerBackend.UserResolver do
  def all(_args, _info) do
    {:ok, TimeTrackerBackend.Repo.all(TimeTrackerBackend.User)}
  end
end

defmodule TimeTrackerBackend.UserResolver do
  alias TimeTrackerBackend.{Repo, User}

  def all(_args, _info) do
    {:ok, Repo.all(User)}
  end
end

Add some aliases in UserResolver
Add some aliases in UserResolver

knewter/time-tracker,knewter/time-tracker