How to have the wifi functioning when turning a macbook into a xubuntu?

I have a 2014 macbook air on which I have installed Xubuntu using a boot usb. I have no wifi connection, and the problem seems to be related to the broadcom driver. I download the deb files on my phone then transfer them through Bluetooth. The first crash arose from a missing dkms, which I installed, then I got an error 10, which is apparently linked to the linux kernel (said chatgpt...) I installed the linux headers and modules, but the compilation failed. with the log being I am bit out of imagination for the next step. I apologize for the cumbersome pictures.