hi Gunnar, I've just added some bits to /etc/default/raspi-firmware-custom and indeed after an apt upgrade run i found them in /boot/firmware/config.txt !
Yay & thank you again! -- cheers, Holger ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ holger@(debian|reproducible-builds|layer-acht).org ⢿⡄⠘⠷⠚⠋⠀ OpenPGP: B8BF54137B09D35CF026FE9D 091AB856069AAA1C ⠈⠳⣄ „If you don't like vaccination, try the disease.“ (Herwig Kollaritsch)
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