App for decoding short messages, and creating requests

I'm thinking of doing this with one of the following:

+ Progressive Web App, but this has a lack of system integration and it might be difficult to be sure that it will remain installed for offline use when you really need it without an internet connection.
+ Tauri, but they don't have mobile support stable yet.
+ egui, very easy to create a gui, but doesn't look native, and doesn't support support android out of the box, https://github.com/jb55/egui-android is a solution
+ Flutter, looks good on all platforms, requires learning some dart, more complicated system, but probably similar level of complexity to PWA or Tauri in the end.

Either way, the `request.rs`, and the `Forecast` parts of `process.rs` should live in their own crate that can be compiled as a library to import and use from whatever frontend gets used.

Start by reading request.rs and the Forecast parts of process.rs to understand the functionality proposed for extraction. The issue does not choose a frontend approach; completion would require selecting one and providing an app that uses the shared crate for decoding messages and creating requests.

Written by the indexing model from the issue text.