One thing to avoid here is to have duplicates in the conda and pip sections.
Pip just basically overwrites dependencies quite brutally and can break things.
So I’d first drop the
pywebview[qt] as you should be getting those already in the dependencies section.
On Linux the dialogs need either Qt or GTK as the error says but I cannot directly see why the qt from conda-forge is not enough… We have limited our Linux testing to Ubuntu as there are so many options, so I do not have info on Debian side.
But I would first drop the duplicates as taking those could easily result in a broken Qt setup for example.
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