Slack

If you wish to get error notifications on slack, you should set it up.

go to https://api.slack.com/apps and click "Create new app"

enter a name and choose your workspace

click on "oauth & permissions" on left menu

add "chat.write.public" and "chat.write" scopes

click "install app"

grant permissions

you now have your slack token

Project configuration

Set SLACK_TOKEN with your Slack token
Set SLACK_CHANNEL you wish to use to receive errors
Set SLACK_EMOJI with any icon you want (to distinguish environments for example)