[desktop] Add steam sleep inhibitor

Adds sleep inhibitor based on whether or not Steam is actively streaming
a remote session

build-liveusb.sh

@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-
-# Build Live USB ISO from flake configuration
-# Creates an uncompressed ISO suitable for Ventoy and other USB boot tools
-
-set -e
-
-echo "Building Live USB ISO..."
-nix build .#nixosConfigurations.live-usb.config.system.build.isoImage --show-trace
-
-if [ -f "./result/iso/"*.iso ]; then
-    iso_file=$(ls ./result/iso/*.iso)
-    echo "✅ Build complete!"
-    echo "📁 ISO location: $iso_file"
-    echo "💾 Ready for Ventoy or dd to USB"
-else
-    echo "❌ Build failed - no ISO file found"
-    exit 1
-fi

flake.nix

@@ -74,18 +74,6 @@
       ];
     };
 
-    # Live USB ISO configuration
-    nixosConfigurations.live-usb = nixpkgs.lib.nixosSystem rec {
-      system = "x86_64-linux";
-      modules = baseModules ++ [
-        ./machines/live-usb/configuration.nix
-        {
-          home-manager.users.johno = import ./home/home.nix;
-          home-manager.extraSpecialArgs = { inherit system; };
-        }
-      ];
-    };
-
     homeConfigurations."johno" = inputs.home-manager.lib.homeManagerConfiguration {
       pkgs = inputs.nixpkgs.legacyPackages."x86_64-linux";
       modules = [

machines/live-usb/configuration.nix

@@ -1,95 +0,0 @@
-# Live USB ISO configuration for recovery and installation
-{ pkgs, modulesPath, ... }:
-
-{
-  imports = [
-    # Use minimal installation CD as base
-    (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
-  ];
-
-  # Use roles structure for consistent configuration
-  roles = {
-    audio.enable = true;
-    bluetooth.enable = true;
-    users = {
-      enable = true;
-      extraGroups = [ "video" "wheel" "networkmanager" ];
-    };
-  };
-
-  # Allow unfree packages for broader hardware support
-  nixpkgs.config.allowUnfree = true;
-
-  # Essential packages for system recovery and installation
-  environment.systemPackages = with pkgs; [
-    # Text editors
-    neovim
-    nano
-    
-    # System tools
-    git
-    curl
-    wget
-    htop
-    tree
-    lsof
-    strace
-    
-    # Filesystem tools
-    btrfs-progs
-    e2fsprogs
-    xfsprogs
-    ntfs3g
-    dosfstools
-    
-    # Network tools
-    networkmanager
-    wirelesstools
-    
-    # Hardware tools
-    pciutils
-    usbutils
-    smartmontools
-    
-    # Archive tools
-    unzip
-    p7zip
-    
-    # Development tools (for quick fixes)
-    gcc
-    binutils
-  ];
-
-  # Enable NetworkManager for easy wifi setup
-  networking.networkmanager.enable = true;
-  
-  # Enable SSH daemon for remote access
-  services.openssh = {
-    enable = true;
-    settings = {
-      PermitRootLogin = "yes";
-      PasswordAuthentication = true;
-    };
-  };
-
-  # Override default nixos user, set johno as the main user with password
-  users.users.nixos.enable = false;
-  users.users.johno = {
-    isNormalUser = true;
-    description = "John Ogle";  
-    extraGroups = [ "wheel" "networkmanager" "audio" "video" ];
-    password = "nixos";  # Simple password for live environment
-  };
-
-  # ISO customization
-  isoImage = {
-    volumeID = "NIXOS-LIVE";
-  };
-
-  # Enable some useful services
-  services.udisks2.enable = true; # For mounting USB drives
-
-  # Hardware support
-  hardware.enableAllFirmware = true;
-  hardware.enableRedistributableFirmware = true;
-}

roles/desktop/default.nix

@@ -20,5 +20,6 @@ with lib;
     ./kde.nix
     ./programs.nix
     ./sddm.nix
+    ./steam-sleep-inhibitor.nix
   ];
 }

roles/desktop/steam-sleep-inhibitor.nix

@@ -0,0 +1,116 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.roles.desktop;
+  
+  steamSleepInhibitor = pkgs.writeShellScript "steam-sleep-inhibitor" ''
+    #!/usr/bin/env bash
+    
+    # Steam log path - adjust if different
+    STEAM_LOG="$HOME/.local/share/Steam/logs/streaming_log.txt"
+    FALLBACK_LOG="$HOME/.steam/steam/logs/streaming_log.txt"
+    
+    # Find Steam log file
+    if [[ -f "$STEAM_LOG" ]]; then
+      LOG_FILE="$STEAM_LOG"
+    elif [[ -f "$FALLBACK_LOG" ]]; then
+      LOG_FILE="$FALLBACK_LOG"
+    else
+      # Monitor Steam process for streaming activity
+      LOG_FILE=""
+    fi
+    
+    INHIBITOR_PID=""
+    MONITORING=false
+    
+    cleanup() {
+      if [[ -n "$INHIBITOR_PID" ]]; then
+        echo "Stopping sleep inhibitor (PID: $INHIBITOR_PID)"
+        kill "$INHIBITOR_PID" 2>/dev/null
+      fi
+      exit 0
+    }
+    
+    start_inhibitor() {
+      if [[ -z "$INHIBITOR_PID" ]]; then
+        echo "Starting sleep inhibitor for Steam Remote Play session"
+        ${pkgs.systemd}/bin/systemd-inhibit \
+          --what=sleep \
+          --who="Steam Remote Play" \
+          --why="Active streaming session detected" \
+          --mode=block \
+          sleep infinity &
+        INHIBITOR_PID=$!
+      fi
+    }
+    
+    stop_inhibitor() {
+      if [[ -n "$INHIBITOR_PID" ]]; then
+        echo "Stopping sleep inhibitor - streaming session ended"
+        kill "$INHIBITOR_PID" 2>/dev/null
+        INHIBITOR_PID=""
+      fi
+    }
+    
+    # Check if Steam Remote Play is active by looking for streaming processes
+    check_streaming_active() {
+      # Check for Steam streaming processes
+      if pgrep -f "streaming_client" >/dev/null || \
+         pgrep -f "steamremoteplay" >/dev/null || \
+         ${pkgs.procps}/bin/pgrep -f "Remote Play" >/dev/null; then
+        return 0
+      fi
+      
+      # Check for active network connections on Steam streaming ports
+      if ${pkgs.nettools}/bin/netstat -an 2>/dev/null | grep -E ":(27036|27037)" | grep ESTABLISHED >/dev/null; then
+        return 0
+      fi
+      
+      return 1
+    }
+    
+    trap cleanup EXIT INT TERM
+    
+    echo "Steam sleep inhibitor monitoring started"
+    
+    while true; do
+      if check_streaming_active; then
+        if [[ "$MONITORING" == "false" ]]; then
+          MONITORING=true
+          start_inhibitor
+        fi
+      else
+        if [[ "$MONITORING" == "true" ]]; then
+          MONITORING=false
+          stop_inhibitor
+        fi
+      fi
+      
+      sleep 10
+    done
+  '';
+in
+{
+  config = mkIf (cfg.enable && cfg.kde && cfg.gaming) {
+    # Steam streaming sleep inhibitor service
+    systemd.user.services.steam-sleep-inhibitor = {
+      description = "Steam Remote Play Sleep Inhibitor";
+      wantedBy = [ "default.target" ];
+      after = [ "graphical-session.target" ];
+      
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${steamSleepInhibitor}";
+        Restart = "always";
+        RestartSec = "5";
+      };
+    };
+
+    # Steam-specific environment variables to prevent sleep interference
+    environment.sessionVariables = {
+      SDL_VIDEO_ALLOW_SCREENSAVER = "1";
+    };
+  };
+}

roles/printing/default.nix

@@ -19,12 +19,5 @@ in
         nssmdns4 = true;
         openFirewall = true;
       };
-
-      hardware.printers.ensurePrinters = [{
-        name = "MFC-L8900CDW_series";
-        deviceUri = "dnssd://Brother%20MFC-L8900CDW%20series._ipp._tcp.local/?uuid=e3248000-80ce-11db-8000-b422006699d8";
-        model = "everywhere";
-      }];
-      hardware.printers.ensureDefaultPrinter = "MFC-L8900CDW_series";
     };
 }