

Foremost expert is pretty vague. Here’s a couple of the more unusual and rare things I’m an expert in. I’m going to define it as less than 10 people globally know more than I do. Less than 100,000 people know anything beyond the absolute basics.
Applied plant breeding of cucurbits.
International marketing and sales of agricultural seed.
Map modding of ThinkTanks a 2004 game by Bravetree.
https://www.planetthinktanks2.com/forums/viewtopic.php?t=5544




Time + motivation + money can overcome a lot of obstacles. It also helps that template of what is needed already exists in Active Directory. This changes the project from “innovating something new” to “a slightly better copy” and is usually a lot faster and easier.
All copyright/patents are also void because of the sanctions at least in practice.