nixos/configuration/desktop.nix

{
  lib,
  pkgs,
  niri,
  ...
}: {
  imports = [./default.nix];
  nixpkgs.config.chromium.commandLineArgs = "--enable-features=UseOzonePlatform --ozone-platform=wayland";
  environment = {
    sessionVariables = {
      NIXOS_OZONE_WL = "1";
      GRIM_DEFAULT_DIR = "$HOME/Pictures/Grim";
    };
    systemPackages = with pkgs; [
      niri
      wtype
      wl-clipboard
      xdg-utils
      libnotify
      libcamera
      glib
      gsettings-desktop-schemas
      hunspell
      hunspellDicts.en_GB-large
      swayimg
      pamixer
      pavucontrol
      playerctl
      brightnessctl
    ];
  };
  security = {
    polkit.enable = true;
    rtkit.enable = true;
    pam = {
      services.swaylock = {};
      loginLimits = [
        {
          domain = "@users";
          item = "rtprio";
          type = "-";
          value = 1;
        }
      ];
    };
  };
  sound.enable = false;
  hardware.bluetooth.enable = true;
  programs = {
    dconf.enable = true;
    light.enable = true;
    noisetorch.enable = true;
    file-roller.enable = true;
    thunar = {
      enable = true;
      plugins = with pkgs.xfce; [thunar-archive-plugin thunar-volman];
    };
    sway = {
      enable = true;
      package =
        pkgs.swayfx.overrideAttrs
        (old: {passthru.providedSessions = ["sway"];});
      wrapperFeatures.gtk = true;
    };
    gamescope = {
      enable = true;
      capSysNice = true;
    };
    xwayland.enable = true;
  };
  gtk.iconCache.enable = true;
  qt = {
    enable = true;
    platformTheme = "gtk2";
    style = "gtk2";
  };
  services = {
    flatpak.enable = true;
    blueman.enable = true;
    gvfs = {
      enable = true;
      package = lib.mkForce pkgs.gnome3.gvfs;
    };
    accounts-daemon.enable = true;
    dbus.packages = with pkgs; [gcr];
    greetd = {
      enable = true;
      settings = let
        command = "niri --session";
      in {
        initial_session = {inherit command;};
        default_session = {inherit command;};
      };
    };
    pipewire = {
      enable = true;
      alsa = {
        enable = true;
        support32Bit = true;
      };
      audio.enable = true;
      jack.enable = true;
      pulse.enable = true;
      wireplumber.enable = true;
    };
    tumbler.enable = true;
    udisks2.enable = true;
    xserver = {
      enable = false;
      xkb = {
        layout = "gb";
        variant = "";
        options = "ctrl:nocaps";
      };
    };
  };
  xdg = {
    portal = {
      enable = true;
      config.common.default = "*"; # TODO change for xdg-desktop-portal > 1.17 changes
      extraPortals = [pkgs.xdg-desktop-portal-gtk];
    };
    mime = let
      emacs = ["emacsclient.desktop" "emacs.desktop"];
      browser = ["firefox.desktop" "nyxt.desktop"];
      applications = {
        "inode/directory" = ["thunar.desktop"];
        "inode/symlink" = ["thunar.desktop"];

        "image/jpeg" = ["swayimg.desktop"];
        "image/png" = ["swayimg.desktop"];
        "video/mp4" = ["mpv.desktop"];

        "text/plain" = emacs;
        "text/richtext" = emacs;
        "text/org" = emacs;
        "text/markdown" = emacs;
        "text/rust" = emacs;
        "text/csv" = emacs;
        "text/html" = emacs;
        "text/css" = emacs;
        "text/tab-separated-values" = emacs;

        "text/x-emacs-lisp" = emacs;
        "text/x-fortran" = emacs;
        "text/x-idl" = emacs;
        "text/x-log" = emacs;
        "text/x-lua" = emacs;
        "text/x-makefile" = emacs;
        "text/x-python" = emacs;
        "text/x-python3" = emacs;
        "text/x-readme" = emacs;
        "text/x-scheme" = emacs;
        "text/x-tex" = emacs;
        "text/x-texinfo" = emacs;

        "application/json" = emacs;
        "application/toml" = emacs;
        "application/yaml" = emacs;
        "application/xml" = emacs;
        "application/rss+xml" = emacs;
        "application/xhtml+xml" = emacs;
        "application/oxps" = emacs;
        "application/x-shellscript" = emacs;

        "application/pdf" = ["evince.desktop"];
        "application/epub+zip" = ["evince.desktop"];
        "application/msword" = ["writer.desktop"];
        "application/zip" = ["xarchiver.desktop"];

        "application/x-extension-htm" = browser;
        "application/x-extension-html" = browser;
        "application/x-extension-shtml" = browser;
        "application/x-extension-xhtml" = browser;
        "application/x-extension-xht" = browser;
        "application/x-mozilla-bookmarks" = browser;

        "x-scheme-handler/http" = browser;
        "x-scheme-handler/https" = browser;
        "x-scheme-handler/about" = browser;
        "x-scheme-handler/chrome" = browser;
        "x-scheme-handler/webcal" = browser;
        "x-scheme-handler/unknown" = emacs;

        "x-scheme-handler/ms-word" = ["writer.desktop"];
        "x-scheme-handler/ms-powerpoint" = ["impress.desktop"];
        "x-scheme-handler/ms-excel" = ["calc.desktop"];
        "x-scheme-handler/msteams" = ["teams-for-linux.desktop"];
      };
    in {
      enable = true;
      defaultApplications = applications;
      addedAssociations = applications;
      removedAssociations = {"x-scheme-handler/zoomus" = browser;};
    };
  };
}