NixOS Config

This is a somewhat opinionated setup for my personal machines and servers, as well as a work laptop. The setup is as follows:

• Desktop environment: wayland / sway / kitty
  • 2x scaling - apps configured for HiDPI
• Audio: pipewire
• Wireless: network manager
• Browsers: Brave, Firefox
• Other configured apps: Spotify, Gimp, Neovim, VSCodium, Discord, prismlauncher, Blender

To use yourself

• Fork repo
• Update "config.nix" with your settings
• Rename hosts/nflx-erahhal-t490s/ and configure your host
• Update flake.nix with the updated hostname and hardware import

To use fingerprint reader

sudo fprintd-enroll <username>

• At SDDM login, hit enter without a password, then touch the fingerprint sensor
• When sway is locked, also just hit enter for the password then touch the sensor

To connect to wifi

• run nmtui

To select audio output

• GUI
  • pavucontrol
• command line
  • pactl list short sinks
  • pactl set-default-sink [sink name]

To pair/connect a bluetooth device

• run blueman-manager

To update firmware/BIOS

• Updates through this method may not be the latest - check device website

sudo fwupdmgr refresh --force
sudo fwupdmgr get-updates
sudo fwupdmgr update
sudo dmidecode -s bios-version

To see current CPU frequency

• watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"

To see current CPU scaling setting

• cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

or

• cpufreq-inf

To determine if C-states is enabled on a Dell

• cctk --CStatesCtrl

To lookup available vim plugins

• nix-env -f '<nixpkgs>' -qaP -A vimPlugins

To lookup available node packages

• nix-env -f '<nixpkgs>' -qaP -A nodePackages

Configurable params

• To setup monitor layout/config
  • users//modules/kanshi.nix
• Touchpad configuration
  • mixins/sway.nix
    • config.wayland.windowManager.sway.input, "type:touchpad"
• Thinkpad CPU scaling and battery charge limits
  • services.tlp.settings
• To disable fingerprint login
  • services.fprintd.enable = false;
  • security.pam.services.login.fprintAuth = false;
  • security.pam.services.xscreensaver.fprintAuth = false;

Repo Layout

• build/ - files used at nixos-rebuild time

• containers/ - Container configs, mainly docker setups for use on a server.

• dotfiles/ - Legacy dotfile configs that are not written in nix, but should be at a later date.

• flakes/ - Independent flakes, in development, before they are ready to be broken out into a separate repo

• helpers/ - Nix helper functions to assist with configuration

• home/ - home-manager modules and configuration.

• hosts/ - Configuration for individual machines.

• modules/ - Custom configurable Nix modules

• overlays/ - Existing package customizations. overlays

• pkgs/ - Custom Packages/Derivations that aren't in nixpkgs.

• profiles/ - Modular configurations for individual concerns. See profiles

• overlays/ - Valid overlays included in all hosts

• scripts/ - Scripts, or any other files to place in home directory, managed by home-manager. This is done via home.file."scripts".source = "${self}/scripts"

• shells/ - Special Environments/Shells, for example with Yocto.

• wallpapers/ - Background images