If your web app is not very heavy you can use a Rpi to serve it, else get something more powerful. Either way I recommend: 1. Having a no break with surge prot

If your web app is not very heavy you can use a Rpi to serve it, else get something more powerful. Either way I recommend: 1. Having a no break with surge protection: I have my router and Rpi connected to a no-break, so even if the power goes down my site stays up. 2. Configure port forwarding in the router: I forward port 443 to some higher port, so in the Rpi I don't need root for anything. 3. If your traffic is very high consider getting another internet link.