Inner source applies open source habits inside one company, so engineers can read, reuse and improve each other's code. Without clear rules, teams copy the same tools in silos and wait weeks for review. This open source contribution guide template, in slide form, launches the programme in order: why it matters, the principles, the first projects, how to contribute and where to get support.

The sample is for Driftwood Labs, a fictional company, launching with three pilot projects, four principles and a review turnaround of 3 working days for a first response. Replace the project names, the figures and the people with your own, and check the set-up steps on a fresh machine before you invite anyone to contribute. Remove any principle your teams cannot keep.