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NixOS - edit system files

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www-gem@lemmy.ml
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Hello,

I’m experiencing with NixOS and would like to know what would be the nicest way to add a specific line to a system file.

As an example, how would you configure NixOS so the line
auth sufficient pam_fprintd.so
is added to the /etc/pam.d/doas file? As a bonus, it would be nice to know how to change an option (and not add an entire line) to a system file for which there is no NixOS default extraConfig/extraRules support for.

This would allow me to add this line or not depending on the machine NixOS will be installed on.

Thanks in advance for your suggestions.

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www-gem@lemmy.mlOP
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Thanks! I’m still not used to the diversity of all the NixOS documentarian and was not aware that arbitrary options can be found there.

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