Yes, we know every page on this site is in English, but that's because you, our web development friend, are ok with that. Your customers, clients, stakeholders and others might not be though. So, we've made it so that every single WPMU DEV plugin is fully translatable, and you'll find most of them are already translated into your language.
Plus, all of the services we provide that send content to your clients (like white label website reports) are also translatable. So whoever you work for or with can experience WPMU DEV products and services in their own language.
We love it when a member of WPMU DEV wants to help out by translating our plugins.
So, if a translation hasn't already been made, you can contribute and assuming your work is excellent, you'll receive lots of free membership points which you can exchange for free months memberships. Or, even a free lifetime membership!
It's not just our plugins, you can also translate all of our reports to your clients language with no trouble at all. Or, to save time, you can use the translations already provided.