Hi! I tried the last release 2023.12.25.

I tried to use https://typst.app (a typesetting software) with dooble.
In the typst web app there is a feature that allows to open a popup window with the pdf preview. You can try it here without an account: https://typst.app/project/rq1TfsdCFEVxLol3kUC_Ii
You have to click the "window" button placed on the right of "+".

When dooble attempts to open the popup it crashes.

I'm on void linux 86_64-glibc.