Maybe you can add more info to explain what stack you use, how you solved some problems, etc.
In its current state, with this ridiculous headline, this post is just an ad.
At the beginning I thought I'd find the same info as in a .plan file (discovered while reading Masters of Doom, where John Carmack explains what he's working on). It would have been super cool !
Unfortunately, your page looks more like a #buildinpublic twitter page which is not really insightful.
Good luck with this project.
Sketch is a tool used by people 8 hours/day (or at least was). Therefore, their pricing is more accepted by users/customers. In your case, it's not really a tool that one will use daily.
Just looking at it on my phone, you need to "enable scripting" in Settings > Shortcuts > Advanced. Then when you add the shortcut, you can select password authentication or SSH Key. If you use a key, it generates one for you, and there is a button to "copy public key" which you'll then need to add to authorized_keys on your server. I assume the private key is stored locally on the device.
The Go HTTP server is an implementation of the spec (swagger.json). It actually plays the same role as your web app. It's just to make it compatible with the native app, and not rely on Web.