> create TUN devices
Is that possible and useful with exe.dev? The docs say:
On the networking side, we don't give your VM its own public IP. Instead, we terminate HTTPS/TLS requests, and proxy them securely to your VM's web servers. For SSH, we handle ssh vmname.exe.xyz.
> run docker compose
You can run multiple compose stacks in a single VPS.
> you start a new project and say to yourself, "I should put this on a new VPS."
I never did that.
Tun devices are possible and useful on exe.dev today, because it means, for example, you can install the full copy of Tailscale.
But to your point: if a single VPS meets all your needs and you do not feel constrained by the marginal cost of another VPS then the exe pricing model is not going to bring you much value. Perhaps the automatic TLS termination and auth proxy with link sharing is useful. But if not, then it sounds like you are well served by existing products.