WP-34s - emulator on Debian bullseye Linux

[ArneStolti]

Dear Co-calculator lovers, since I'm a fan of the WP-34s and WP-31s (and I admire the work of Pauli, Walter and Markus very much) I usually use these calculators in real HW and (with different displays - you know) also on my desktop comps at work and at home with the emulators under Linux64.

My newer Debian Linux (Bullseye) doesn't seem to support QT4 any more - so does this mean no more emulators on this OS, or is there a workaround? (Is it possible to copy the qt4-library into the Wp3s-folder or something?) Can someone more skilled (Pascal maybe) solve this for me please, or at least give me a hint? Many thanks in advance.