Welcome to the forum! SAFE will use an App Launcher, it’s not clear what you’ll need to program Apps for that, no usable code available on that front so far, that is not for public use as far as I know. Here’s a preview.
Another option is to use whatever language you want to build a program for Linux or Windows that uses the API. Is that what you’re talking about? So far there’s no global network yet, although it is possible to run your own local Vaults. In the coming weeks we’ll see the start of a global network and the public debut of the App Launcher/Client. That should make things more easy to work with.