https://sandstrom.io solves this problem but I guess they had trouble with traction as they set out to build a two-sided marketplace for a market that wasn't ready. Selling to consumers and SMBs is a huge hurdle, as they'd settle for convenience and cheap when given the choice. And due to SaaS' economies of scale, a decentralised solution is never going to be able to compete with that.

I'm currently building a VPN mesh network for personal use, and the more time I spend thinking abt it, the more https://zerotier.com 's model makes sense. What if consumers, SMBs can create VxLANs over the internet and then host apps and services in that space (Sandstorm Oasis) that are completely private and only accessible to devices enrolled to participate in that VxLAN.