Hello!
If we're talking about adding a subscription link, which is very important for a modern client, I kindly request you to consider the possibility of adding so-called URL schemes to your application. They will enhance the user experience and make interaction easier.
For example, many applications on all platforms support this feature:
CLASH:
clashx://install-config?url=URL
ShadowRocket:
sub://URL
You can find all the examples here:
https://docs.marzban.ru/examples/url-scheme

We need this in order to allow users to add a subscription to the application with just one click from the subscription page.

If you add this feature, along with support for sub pages, your application will become the ultimate solution for Windows users.

Thanx!