I currently just let my desktop run constantly. It runs Windows in a KMS for games and sleeping breaks it so I never even suspend. It only seems to use about $1

I currently just let my desktop run constantly. It runs Windows in a KMS for games and sleeping breaks it so I never even suspend. It only seems to use about $10/month in power. I have been considering using DDNS through my router and Cloudflare and trying to create a iOS/Android app that will automatically upload my photos to the my DDNS for storage on my desktop. It feels a little crazy but the idea of syncing my photos to my own machine with no middle man is comforting. DDNS seems like it's a local too good to be true for solving the dynamic IP problem. I'd prefer to have a static IP for my gigabit Internet but sadly Webpass doesn't allow it. Does anyone have experience doing something like this?