Nixos-generate-config

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This command analyzes your hardware configuration and generates two files of:

• configuration.nix
• hardware-configuration.nix

hardware specific notes

If you are using an SSD it may be useful to enable TRIM support as well as set filesystem flags to improve the SSD performance:

fileSystems."/".options = [ "noatime" "nodiratime" "discard" ];

A collection of hardware specific platforms with their config can be found at NixOS Hardware repository