niksos/hosts/niks/configuration.nix

{
    config,
    pkgs,
    inputs,
    ...
}: 
let
    swayConfig = pkgs.writeText "greetd-sway-config" ''
        # https://github.com/swaywm/sway/issues/5732#issuecomment-1583336383
        exec systemctl --user import-environment DISPLAY WAYLAND_DISPLAY SWAYSOCK XDG_CURRENT_DESKTOP
        exec hash dbus-update-activation-environment 2>/dev/null && \
         dbus-update-activation-environment --systemd DISPLAY WAYLAND_DISPLAY SWAYSOCK XDG_CURRENT_DESKTOP

        exec "${pkgs.greetd.regreet}/bin/regreet; swaymsg exit"
        bindsym Mod4+shift+e exec swaynag \
          -t warning \
          -m 'What do you want to do?' \
          -b 'Poweroff' 'systemctl poweroff' \
          -b 'Reboot' 'systemctl reboot'
    '';
in
{
    nixpkgs.config.allowUnfree = true;
    nixpkgs.overlays = [ inputs.nur.overlay ];

    boot.loader.systemd-boot.enable = true;
    boot.loader.efi.canTouchEfiVariables = true;
    boot.kernelPackages = pkgs.linuxPackages_xanmod_latest;
    boot.initrd.kernelModules = [ "amdgpu" ];
    boot.kernelParams = [
        "video=eDP-1:2560x1440@165"
        "video=HDMI-A-1:2560x1440@144"
    ];

    networking.networkmanager.enable = true;

    time.timeZone = "Europe/Warsaw";

    nix.settings = {
        experimental-features = [
            "flakes"
            "nix-command"
        ];
        substituters = [
            "https://hyprland.cachix.org"
            "https://neovim-nightly.cachix.org"
            "https://nix-gaming.cachix.org"
        ];
        trusted-public-keys = [
            "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
            "neovim-nightly.cachix.org-1:feIoInHRevVEplgdZvQDjhp11kYASYCE2NGY9hNrwxY="
            "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
        ];
        keep-outputs = true;
        keep-derivations = true;
    };

    programs.zsh.enable = true;

    programs.hyprland = {
        enable = true;
        xwayland = {
            enable = true;
            hidpi = true;
        };
        nvidiaPatches = false;
    };

    # https://github.com/NixOS/nixpkgs/issues/158025
    security.pam.services.swaylock = {};

    programs.regreet = {
        enable = true;
        settings = {
            GTK = {
                application_prefer_dark_theme = true;
                cursor_theme_name = "Bibata-Modern-Classic";
                font_name = "JetBrains Mono 16";
                icon_theme_name = "Papirus-Dark";
                theme_name = "Catppuccin-Mocha-Standard-Green-dark";
            };
            env = {
                GTK_USE_PORTAL = "0";
            };
        };
    };

    fonts.fonts = with pkgs; [
        material-design-icons
        (nerdfonts.override { fonts = [ "JetBrainsMono" ]; })
    ];

    users.users.jacek = {
        isNormalUser = true;
        extraGroups = [ "wheel" "networkmanager" ];
        shell = pkgs.zsh;
    };

    environment = {
        shells = with pkgs; [zsh];
        pathsToLink = [ "/share/zsh" ];
        enableAllTerminfo = true;
        sessionVariables = {
            TERM = "foot";
            EDITOR = "nvim";

            GTK_IM_MODULE = "fcitx";
            QT_IM_MODULE = "fcitx";
            XMODIFIERS = "@im=fcitx";

            LIBSEAT_BACKEND = "logind";
            QT_QPA_PLATFORMTHEME = "qt5ct";

            XDG_CURRENT_DESKTOP = "Hyprland";
            XDG_SESSION_TYPE = "wayland";
            XDG_SESSION_DESKTOP = "Hyprland";

            QT_QPA_PLATFORM = "wayland";
            MOZ_ENABLE_WAYLAND = "1";
            MOZ_DRM_DEVICE = "/dev/dri/card0";

            SDL_VIDEODRIVER = "wayland";

            _JAVA_AWT_WM_NONEREPARENTING = "1";
            
            CLUTTER_BACKEND = "wayland";
            
            GDK_BACKEND = "wayland";
            
            XCURSOR_THEME = "Bibata-Modern-Classic";
            XCURSOR_SIZE = "24";

            SYSTEMD_TIMEDATED_NTP_SERVICES = "chronyd.service:systemd-timesyncd.service";

            XDG_DATA_HOME = "\$HOME/.local/share";
            XDG_CONFIG_HOME = "\$HOME/.config";
            XDG_STATE_HOME = "\$HOME/.local/state";
            XDG_CACHE_HOME = "\$HOME/.cache";

            HISTFILE = "\${XDG_STATE_HOME}/bash/history";
            CARGO_HOME = "\${XDG_DATA_HOME}/cargo";
            GTK2_RC_FILES = "\${XDG_CONFIG_HOME}/gtk-2.0/gtkrc";
        };
        etc = let
            json = pkgs.formats.json {};
        in {
            "greetd/environments".text = ''
                Hyprland
                zsh
                shutdown now
            '';
            "pipewire/pipewire.conf.d/92-low-latency.conf".text = ''
                context.properties = {
                    default.clock.rate = 48000
                    default.clock.quantum = 1024
                    default.clock.min-quantum = 1024
                    default.clock.max-quantum = 1024
                }
            '';
            "pipewire/pipewire-pulse.d/92-low-latency.conf".source = json.generate "92-low-latency.conf" {
                context.modules = [
                    {
                        name = "libpipewire-module-protocol-pulse";
                        args = {
                            pulse.min.req = "512/48000";
                            pulse.default.req = "512/48000";
                            pulse.max.req = "512/48000";
                            pulse.min.quantum = "512/48000";
                            pulse.max.quantum = "512/48000";
                        };
                    }
                ];
                stream.properties = {
                    node.latency = "512/48000";
                    resample.quality = 1;
                };
            };
        };
    };

    services = {
        pipewire = {
            enable = true;
            alsa.enable = true;
            alsa.support32Bit = true;
            pulse.enable = true;
        };
        greetd = {
            enable = true;
            settings = {
                default_session = {
                    command = "${pkgs.sway}/bin/sway --config ${swayConfig}";
                    user = "greeter";
                };
            };
        };
        blueman.enable = true;
        mullvad-vpn.enable = true;

        pcscd.enable = true;

        udev.packages = [ pkgs.yubikey-personalization ];

        udisks2.enable = true;
    };

    programs.gnupg.agent = {
        enable = true;
        pinentryFlavor = "qt";
        enableSSHSupport = true;
    };

    security.rtkit.enable = true;

    hardware = {
        opentabletdriver = {
            enable = true;
            daemon.enable = true;
        };
        bluetooth.enable = true;
        opengl = {
            enable = true;
            driSupport = true;
            driSupport32Bit = true;
        };
    };

    virtualisation.docker = {
        enable = true;
        storageDriver = "btrfs";
        rootless = {
            enable = true;
            setSocketVariable = true;
        };
    };

    swapDevices = [ {
        device = "/var/lib/swapfile";
        size = 16*1024;
    } ];

    system.stateVersion = "23.11";
}