NixOS-Config/modules/home/wms/niri/rules/default.nix

{ pkgs, config, ... }:
{
  config.home.niri.settings.rules = pkgs.writeText "rules" ''
    // Browsers
    window-rule {
      match app-id="MainBrowser"
      open-on-workspace "${config.ws.w1}"
    }
    window-rule {
      match app-id="AltBrowser"
      open-on-workspace "${config.ws.w1a}"
    }
    
    // Communication
    window-rule {
      match app-id="MiscBrowser"
      match app-id="vesktop"
      block-out-from "screencast"
      open-on-workspace "${config.ws.w7}"
    }
    window-rule {
      match app-id="org.gnome.Fractal"
      match app-id="org.telegram.desktop"
      open-on-workspace "${config.ws.w8}"
    }
    window-rule {
      match app-id="thunderbird"
      open-maximized true
      open-on-workspace "${config.ws.w9}"
    }

    // Etc
    window-rule {
      match app-id="looking-glass-client"
      open-on-workspace "${config.ws.w2a}"
    }
    window-rule {
      match app-id="com.obsproject.Studio"
      open-on-workspace "${config.ws.w4a}"
    }

    //// Layer rules (Uncomment after 0.1.11)
    //layer-rule {
    //  match namespace="^notifications$"
    //  block-out-from "screencast"
    //}

    // Everything else
    screenshot-path "~/Pictures/Screenshots/Screenshot from %Y-%m-%d %H-%M-%S.png"
    
    hotkey-overlay {
      skip-at-startup
    }
    
    environment {
      DISPLAY ":0"
    }
  '';
}