Embedding Tauri into existing native macOS/Windows app

[Strus]

Imagine I have an existing native macOS/Windows app, and I would like to embed Tauri inside it. In other words, make Tauri to use the web view I have created on my own, inside a native app. Let's say I have the app with tab navigation and I want to have Tauri inside one of the tabs.

Is this possible? Is there a way to make it possible without significant architectural changes to Tauri? One theoretical way I was thinking about would be to create for example Swift to Rust bindings, call Tauri from Swift and pass the webview to it. But I don't know if this could work or not.

[FabianLars]

Is this possible?

no

Is there a way to make it possible without significant architectural changes to Tauri?

No, at least not with this part "make Tauri to use the web view I have created on my own".
Ignoring the whole windowing stuff which is integrated in tauri (you'd have better chances with just wry), tauri/wry still make various assumptions about the webview and quite a few things require tauri/wry to initialize the webview.