SSH Virtual Hosting: No Host Header, but Public Key (blog.exe.dev)

I was checking some of the bookmarks/reading-lists I had earlier, stumbled on this piece on the exe.dev's blog.

Great idea with lots of use cases, but overpriced and seems excessively greedy. No demo account? No free trial? Not event signup without committing to a recurring sub? 25 VMs for $20/mo as a minimum? How about 2 VMs for $2 with free trial?