Not everything in inner source is about community building [but a big portion!] and the infrastructure is basic to foster collaboration, transparency and community building.
This post is about aspects to have in mind when deploying the tooling needed to provide support to developers within the organization and across business units.
There is a more extended version of this infrastructure topic in the work-in-progress book about inner source: Managing Inner Source Projects that we, in Bitergia, are writing. Specifically in the infrastructure chapter. This is available under a CC-BY-SA 4.0 license and anyone is more than welcome to propose new sections, improve the current ones and collaborate in any way. Please feel free to redistribute!