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kotlinlang

is it possible to recreate OSX spotlight with compose Desktops current capabilities, like dynamic window resizing and no window toolbar, global hotkey to invoke it etc..

That would be beyond compose - which is a UI toolkit - and in the realm of an app framework.

couldnt we potentially mix it partially with native objC shared library native code that grabs the global hotkey and does other things compose couldnt reach at ? as a temporary solution. Maybe in the future compose desktop will try to support some of these

Sure, another library or the app itself can do native bindings

<https://github.com/MayakaApps/ComposeWindowStyler> had some promise, but the author quickly lost interest in it. You also need to track which exact APIs are available in which exact versions of each one of the supported platforms. That means that an otherwise stable (abandoned) library quickly stops working on newer versions of the specific OSs.