Next generation robots, drones and motorized scooter/skateboard/e-bike projects need efficient and resilient BLDC controllers, so if you're also looking for a solid open-source brushless motor speed controller (BLDC ESC) for your project or knowledge/inspiration to bootstrap your own, then you most definitely want to have a look at VESC.
It's a full open-source breed where hardware, firmware and support-software are available on github and no Windows or other crappy, proprietary systems are required for development or tuning/configuration.