There's a separate project Cloud Seeder [1] which is completely open source and gives you 1 click server appliances and IP addresses on-premises. Disclosure, I work there.
At the moment we only support the major hyperscalers since they're the most common ejection destinations, but we're considering adding more options. No concrete plans for this at the moment though
[1] https://github.com/ipv6rslimited/cloudseeder