I have a bin/update script in my flake repo that has this:

#!/usr/bin/env bash
set -e

echo "> sudo nix-channel --update"
sudo nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager
sudo nix-channel --update

echo "> nix-env -u --always"
nix-env -u --always

echo "> nix flake update"
nix --extra-experimental-features nix-command --extra-experimental-features flakes flake update

echo "> sudo nixos-rebuild build --flake '.#drakkar' --show-trace"
sudo nixos-rebuild build --flake '.#drakkar' --show-trace
echo "> sudo ./result/activate"
sudo ./result/activate
echo "> rm -f ./result"
rm -f ./result

echo "> home-manager switch --flake '.' --show-trace"
home-manager switch --flake '.' --show-trace

echo "> nixos-generate-config --show-hardware-config > hosts/drakkar/hardware-configuration.nix"
nixos-generate-config --show-hardware-config > hosts/drakkar/hardware-configuration.nix

I run that whenever I make changes to the config and also to update packages. It should build the flake file and not the /etc/nixos/configuration.nix right?

In reply to @olafklingt:matrix.org
I wonder if musnix is set up properly on my laptop. does anyone know how to check if for example the pam limits are set as expected?