Slack Tool Automating Shift Scheduling Generates $900+ Per Month

Problem

Rosterbird is addresses the challenge of managing team rosters and rotations for organisations using Slack.

How it makes money

Subscription plans priced per user per month.

Key lessons to apply this idea to your own

Rostering is not a new problem. Are there any day-to-day administrative processes for businesses which you can build a similar extension or tool for?