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randomizedcoderrandomizedcoder
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‎desktop/l/Makefile‎

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#
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# nixos/laptops/l/Makefile
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#
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EXPECTED_HOSTNAME := l
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ACTUAL_HOSTNAME := $(shell hostname)
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all: check_hostname rebuild
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check_hostname:
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ifeq ($(ACTUAL_HOSTNAME),$(EXPECTED_HOSTNAME))
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@echo "Hostnames match: $(ACTUAL_HOSTNAME)"
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else
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@echo "Error: Hostname does not match. Expected: $(EXPECTED_HOSTNAME), Got: $(ACTUAL_HOSTNAME)"
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@exit 1
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endif
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rebuild:
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sudo nixos-rebuild switch --flake .
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rebuild_t:
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sudo nixos-rebuild switch --flake .#t
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#https://nixos.org/manual/nixos/unstable/index.html#sec-nix-network-issues
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#nixos-rebuild switch --option binary-caches http://my-cache.example.org/
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impure:
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sudo nixos-rebuild switch --impure --flake .
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rebuild_trace:
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sudo nixos-rebuild switch --show-trace --flake .
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update:
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sudo nix flake update;
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rebuild_old:
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# sudo cp ./flake.nix /etc/nixos/
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# sudo cp ./flake.lock /etc/nixos/
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# sudo cp ../../modules/* /etc/nixos/
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# sudo cp ./configuration.nix /etc/nixos/
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# #sudo cp ./home-manager.nix /etc/nixos/
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# sudo cp ./home.nix /etc/nixos/
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# sudo cp ./prometheus.nix /etc/nixos/
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# sudo cp ./*.nix /etc/nixos/
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# sudo nix-channel --update
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# sudo nixos-rebuild switch
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#sudo cp ./* /etc/nixos/
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sudo nix flake update;
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#sudo nix-channel --update;
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sudo nixos-rebuild switch --flake .
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update_oldm.:
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sudo nix-channel --update
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sudo nixos-rebuild switch
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#nix-shell -p vim
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restart_display_manager:
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sudo systemctl restart display-manager.service
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# end

‎desktop/l/configuration.nix‎

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# Edit this configuration file to define what should be installed on
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# your system. Help is available in the configuration.nix(5) man page
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# and in the NixOS manual (accessible by running 'nixos-help').
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# sudo nixos-rebuild switch
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# sudo nix-channel --update
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# nix-shell -p vim
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# nmcli device wifi connect MYSSID password PWORD
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# systemctl restart display-manager.service
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{
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inputs,
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config,
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pkgs,
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lib,
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...
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}:
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# https://nixos.wiki/wiki/FAQ#How_can_I_install_a_package_from_unstable_while_remaining_on_the_stable_channel.3F
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# https://discourse.nixos.org/t/differences-between-nix-channels/13998
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{
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# https://nixos.wiki/wiki/NixOS_modules
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# https://nixos-and-flakes.thiscute.world/nixos-with-flakes/start-using-home-manager
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imports =
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[
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./hardware-configuration.nix
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./hardware-graphics.nix
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./sysctl.nix
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./wireless_desktop.nix
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./locale.nix
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./hosts.nix
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./firewall.nix
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#./systemdSystem.nix
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./systemPackages.nix
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# home manager is imported in the flake
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#./home.nix
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./nodeExporter.nix
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./prometheus.nix
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./grafana.nix
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# clickhouse
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#./docker-compose.nix
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./docker-daemon.nix
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#./smokeping.nix
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./distributed-builds.nix
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];
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boot = {
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loader.systemd-boot = {
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enable = true;
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consoleMode = "max";
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memtest86.enable = true;
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};
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loader.efi.canTouchEfiVariables = true;
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# https://nixos.wiki/wiki/Linux_kernel
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#kernelPackages = pkgs.linuxPackages; # need to run this old kernel to allow nvidia driver to compile :(
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kernelPackages = pkgs.unstable.linuxPackages;
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#boot.kernelPackages = pkgs.linuxPackages_latest;
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#boot.kernelPackages = pkgs.linuxPackages_rpi4
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# # https://github.com/tolgaerok/nixos-2405-gnome/blob/main/core/boot/efi/efi.nix#L56C5-L56C21
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# kernelParams = [
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# "nvidia-drm.modeset=1"
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# "nvidia-drm.fbdev=1"
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# # https://www.reddit.com/r/NixOS/comments/u5l3ya/cant_start_x_in_nixos/?rdt=56160
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# #"nomodeset"
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# ];
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blacklistedKernelModules = [
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"nouveau"
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#"i915"
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];
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# https://wiki.nixos.org/wiki/NixOS_on_ARM/Building_Images#Compiling_through_binfmt_QEMU
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# https://nixos.org/manual/nixos/stable/options#opt-boot.binfmt.emulatedSystems
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binfmt.emulatedSystems = [ "aarch64-linux" "riscv64-linux" ];
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extraModulePackages = [
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config.boot.kernelPackages.v4l2loopback
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#pkgs.unstable.linuxPackages.nvidiaPackages.production
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];
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extraModprobeConfig = ''
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options kvm_intel nested=1
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options v4l2loopback devices=1 video_nr=1 card_label="OBS Cam" exclusive_caps=1
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'';
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};
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# https://fzakaria.com/2025/02/26/nix-pragmatism-nix-ld-and-envfs
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# Enable nix-ld for better compatibility with non-Nix binaries
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programs.nix-ld = {
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enable = false;
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# Add commonly needed libraries
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libraries = with pkgs; [
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stdenv.cc.cc.lib
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zlib
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libxml2
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# Add more libraries as needed
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];
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};
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# Enable envfs for better compatibility with FHS expectations
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services.envfs = {
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enable = false;
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};
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# For OBS
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security.polkit.enable = true;
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nix = {
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settings = {
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auto-optimise-store = true;
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experimental-features = [ "nix-command" "flakes" ];
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download-buffer-size = "500000000";
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};
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gc = {
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automatic = true; # Enable automatic execution of the task
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dates = "daily"; # Schedule the task to run daily
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options = "--delete-older-than 10d"; # Specify options for the task: delete files older than 10 days
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randomizedDelaySec = "14m"; # Introduce a randomized delay of up to 14 minutes before executing the task
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};
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};
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# https://nixos.wiki/wiki/Networking
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networking.hostName = "l";
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time.timeZone = "America/Los_Angeles";
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services.udev.packages = [ pkgs.gnome-settings-daemon ];
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# services.udev.packages = [ pkgs.gnome.gnome-settings-daemon ];
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# https://nixos.wiki/wiki/NixOS_Wiki:Audio
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hardware.pulseaudio.enable = false; # Use Pipewire, the modern sound subsystem
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security.rtkit.enable = true; # Enable RealtimeKit for audio purposes
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services.pipewire = {
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enable = true;
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alsa.enable = true;
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alsa.support32Bit = true;
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pulse.enable = true;
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# Uncomment the following line if you want to use JACK applications
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# jack.enable = true;
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};
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services.lldpd.enable = true;
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services.openssh.enable = true;
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services.timesyncd.enable = true;
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services.fstrim.enable = true;
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services.avahi = {
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enable = true;
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nssmdns4 = true;
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ipv4 = true;
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ipv6 = true;
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openFirewall = true;
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};
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services.bpftune.enable = true;
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# Enable touchpad support (enabled default in most desktopManager).
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# services.libinput.enable = true;
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# https://nixos.wiki/wiki/Printing
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services.printing.enable = true;
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# https://wiki.nixos.org/wiki/Flameshot
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# services.flameshot = {
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# enable = true;
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# settings.General = {
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# showStartupLaunchMessage = false;
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# saveLastRegion = true;
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# };
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# };
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systemd.services.modem-manager.enable = false;
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systemd.services."dbus-org.freedesktop.ModemManager1".enable = false;
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services.clickhouse.enable = false;
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# environment.variables defined in hardware-graphics.nix
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environment.sessionVariables = {
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TERM = "xterm-256color";
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#MY_VARIABLE = "my-value";
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#ANOTHER_VARIABLE = "another-value";
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};
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users.users.das = {
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isNormalUser = true;
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description = "das";
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extraGroups = [ "wheel" "networkmanager" "kvm" "libvirtd" "docker" "video" ];
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packages = with pkgs; [
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];
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# https://nixos.wiki/wiki/SSH_public_key_authentication
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openssh.authorizedKeys.keys = [
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"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGMCFUMSCFJX95eLfm7P9r72NBp9I1FiXwNwJ+x/HGPV das@t"
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];
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};
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# package moved to systemPackages.nix
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# environment.systemPackages = with pkgs; [
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# Some programs need SUID wrappers, can be configured further or are
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# started in user sessions.
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# programs.mtr.enable = true;
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programs.gnupg.agent = {
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enable = true;
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enableSSHSupport = true;
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};
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# # https://wiki.hyprland.org/Nix/Hyprland-on-NixOS/
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programs.hyprland = {
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enable = true;
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# Nvidia patches are no longer needed
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#nvidiaPatches = true;
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xwayland.enable = true;
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};
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# programs.hyprland = {
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# enable = true;
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# # set the flake package
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# package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
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# # make sure to also set the portal package, so that they are in sync
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# portalPackage = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.xdg-desktop-portal-hyprland;
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# };
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# programs.chromium.enable = true;
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# # programs.chromium.package = pkgs.google-chrome;
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# # https://nixos.wiki/wiki/Chromium#Enabling_native_Wayland_support
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# nixpkgs.config.chromium.commandLineArgs = "--enable-features=UseOzonePlatform --ozone-platform=wayland";
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# #programs.chromium.commandLineArgs = "--enable-features=UseOzonePlatform --ozone-platform=wayland";
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# programs.firefox.enable = true;
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# # # https://github.com/TLATER/dotfiles/blob/master/nixos-modules/nvidia/default.nix
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# programs.firefox.preferences = {
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# "media.ffmpeg.vaapi.enabled" = true;
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# "media.rdd-ffmpeg.enabled" = true;
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# "media.av1.enabled" = true; # Won't work on the 2060
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# "gfx.x11-egl.force-enabled" = true;
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# "widget.dmabuf.force-enabled" = true;
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# };
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# Open ports in the firewall.
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# networking.firewall.allowedTCPPorts = [ ... ];
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# networking.firewall.allowedUDPPorts = [ ... ];
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# Or disable the firewall altogether.
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# networking.firewall.enable = false;
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# # https://nixos.wiki/wiki/Podman
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# virtualisation.podman = {
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# enable = true;
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# dockerCompat = true;
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# defaultNetwork.settings.dns_enabled = true;
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# autoPrune.enable = true;
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# };
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# #virtualisation.oci-containers.backend = "podman";
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# # virtualisation.oci-containers.containers = {
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# # container-name = {
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# # image = "container-image";
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# # autoStart = true;
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# # ports = [ "127.0.0.1:1234:1234" ];
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# # };
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# # };
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# https://nixos.wiki/wiki/Virt-manager
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virtualisation.libvirtd.enable = true;
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programs.virt-manager.enable = true;
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virtualisation.spiceUSBRedirection.enable = true;
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virtualisation.containers = {
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ociSeccompBpfHook.enable = true;
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};
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# guest
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# services.qemuGuest.enable = true;
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# services.spice-vdagentd.enable = true;
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# https://wiki.nixos.org/wiki/Laptop
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# This value determines the NixOS release from which the default
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# settings for stateful data, like file locations and database versions
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# on your system were taken. It's perfectly fine and recommended to leave
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# this value at the release version of the first install of this system.
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# Before changing this value read the documentation for this option
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# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
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#system.stateVersion = "23.11";
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system.stateVersion = "24.11";
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nixpkgs.config = {
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allowUnfree = true;
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# allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
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# "nvidia-x11"
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# "nvidia-settings"
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# "nvidia-persistenced"
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# ];
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};
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# hardware.opengl = {
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# enable = true;
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# driSupport = true;
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# driSupport32Bit = true;
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# extraPackages = with pkgs; [
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# vaapiVdpau
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# libvdpau-va-gl
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# ];
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# };
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}

‎desktop/l/distributed-builds.nix‎

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#
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# latops/t/distributed-builds.nix
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#
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# https://nix.dev/tutorials/nixos/distributed-builds-setup.html#set-up-distributed-builds
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{ pkgs, ... }:
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{
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nix.distributedBuilds = true;
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nix.settings.builders-use-substitutes = true;
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nix.buildMachines = [
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{
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hostName = "hp4.home";
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sshUser = "remotebuild";
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sshKey = "/root/.ssh/remotebuild";
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system = pkgs.stdenv.hostPlatform.system;
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supportedFeatures = [ "nixos-test" "big-parallel" "kvm" ];
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}
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];
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}

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