Modules
A Swoosh-style local mailbox, but for Slack.
Behaviour for the two calls most Slack integrations actually make: posting to a channel and DMing a user.
In-memory GenServer that captures messages pushed by SlackSandbox and
broadcasts them over PubSub so a live view (or anything else) can render
them as they arrive.
Live view of everything captured by SlackSandbox.Inbox, pushed in real
time over PubSub. Mount it directly in your router