[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

@@ -74,22 +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.nixos = { ... }: {
-            imports = [ ./home/home.nix ];
-            home.username = nixpkgs.lib.mkForce "nixos";
-            home.homeDirectory = nixpkgs.lib.mkForce "/home/nixos";
-          };
-          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

@@ -1,89 +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;
-    desktop = {
-      enable = true;
-      kde = true;
-      x11 = true;
-      wayland = true;
-      sddm = true;
-    };
-  };
-
-  # 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;
-    };
-  };
-
-  # 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;
-}

machines/nix-book/configuration.nix

@@ -39,7 +39,6 @@
 
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
-
   # Enable networking
   networking.networkmanager.enable = true;
 

machines/nix-book/hardware-configuration.nix

@@ -10,28 +10,16 @@
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "vmd" "nvme" "sdhci_pci" ];
   boot.initrd.kernelModules = [ ];
-  boot.initrd.luks.devices."luks-4126fbd4-bd09-4ece-af0d-6fff414c21b3".device = "/dev/disk/by-uuid/4126fbd4-bd09-4ece-af0d-6fff414c21b3";
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  roles.btrfs = {
+  fileSystems."/" =
-    enable = true;
+    { device = "/dev/disk/by-uuid/bd396529-e2c4-47cb-b844-8d6ed841f81a";
-    filesystems."/dev/disk/by-uuid/223a44e5-91e2-4272-830e-129166042a1d" = {
+      fsType = "ext4";
-      mountpoints = {
-        "/" = {
-          compression = "zstd";
-          extraOptions = [ "noatime" ];
-        };
-      };
-      scrub.enable = true;
-      deduplication = {
-        enable = true;
-        hashTableSizeMB = 32;
-        verbosity = "err";
-      };
-    };
     };
 
+  boot.initrd.luks.devices."luks-4126fbd4-bd09-4ece-af0d-6fff414c21b3".device = "/dev/disk/by-uuid/4126fbd4-bd09-4ece-af0d-6fff414c21b3";
+
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/7A0B-CF88";
       fsType = "vfat";

machines/nix-book/nixbook-btrfs-migration.md

@@ -1,223 +0,0 @@
-# NixBook ext4 to btrfs Migration Guide
-
-## Overview
-This guide converts your nixbook machine from ext4 to btrfs with zstd compression and beesd deduplication while preserving your LUKS encryption and all data.
-
-## Current System Info
-- **Hostname**: nix-book
-- **Root filesystem**: ext4 on `/dev/disk/by-uuid/bd396529-e2c4-47cb-b844-8d6ed841f81a`
-- **Encryption**: LUKS with two devices configured
-- **Current usage**: 138GB used / 225GB total (65% full)
-- **Free space**: 76GB available (sufficient for conversion)
-
-## Pre-Migration Checklist
-
-### 1. Create Full System Backup (CRITICAL)
-```bash
-# Boot from NixOS live USB
-# Mount encrypted filesystem
-cryptsetup luksOpen /dev/disk/by-uuid/4126fbd4-bd09-4ece-af0d-6fff414c21b3 luks-nixbook
-mount /dev/mapper/luks-nixbook /mnt
-
-# Create backup to external drive (adjust target as needed)
-rsync -avxHAX --progress /mnt/ /path/to/backup/nixbook-backup/
-```
-
-### 2. Verify Configuration Changes
-The following files have been updated for btrfs:
-- `machines/nix-book/configuration.nix` - Added beesd service
-- `machines/nix-book/hardware-configuration.nix` - Changed fsType to btrfs with compression
-
-## Migration Process
-
-### Phase 1: Boot to Live Environment
-1. **Create NixOS live USB**:
-   ```bash
-   # Download latest NixOS ISO
-   # Flash to USB drive
-   dd if=nixos-minimal-xx.xx-x86_64-linux.iso of=/dev/sdX bs=4M status=progress
-   ```
-
-2. **Boot from live USB** and ensure you can access the encrypted drives
-
-### Phase 2: Filesystem Conversion
-3. **Unlock LUKS volumes**:
-   ```bash
-   cryptsetup luksOpen /dev/disk/by-uuid/4126fbd4-bd09-4ece-af0d-6fff414c21b3 luks-nixbook
-   cryptsetup luksOpen /dev/disk/by-uuid/b614167b-9045-4234-a441-ac6f60a96d81 luks-nixbook2
-   ```
-
-4. **Check filesystem before conversion**:
-   ```bash
-   fsck.ext4 -f /dev/mapper/luks-nixbook
-   ```
-
-5. **Convert ext4 to btrfs** (this preserves all data):
-   ```bash
-   # Install btrfs-progs if not available
-   nix-shell -p btrfs-progs
-
-   # Convert the filesystem (takes 15-45 minutes depending on data)
-   btrfs-convert /dev/mapper/luks-nixbook
-   
-   # Verify conversion succeeded
-   mount /dev/mapper/luks-nixbook /mnt
-   ls -la /mnt  # Should show your normal filesystem
-   btrfs filesystem show /mnt
-   ```
-
-6. **Get new filesystem UUID** (may have changed):
-   ```bash
-   blkid /dev/mapper/luks-nixbook
-   # Note the new UUID if it changed
-   ```
-
-### Phase 3: Configuration Update
-7. **Mount and chroot into system**:
-   ```bash
-   mount -o compress=zstd,noatime /dev/mapper/luks-nixbook /mnt
-   mount /dev/disk/by-uuid/7A0B-CF88 /mnt/boot
-   nixos-enter --root /mnt
-   ```
-
-8. **Update hardware-configuration.nix** if UUID changed:
-   ```bash
-   # Edit /etc/nixos/hardware-configuration.nix if needed
-   # Update the UUID in fileSystems."/" section
-   ```
-
-9. **Rebuild system with btrfs configuration**:
-   ```bash
-   cd /home/johno/nixos-configs
-   nixos-rebuild switch --flake .#nix-book
-   ```
-
-### Phase 4: Enable Compression and Deduplication
-10. **Reboot into new btrfs system**:
-    ```bash
-    exit  # Exit chroot
-    umount -R /mnt
-    reboot
-    ```
-
-11. **Verify btrfs is working**:
-    ```bash
-    mount | grep btrfs
-    btrfs filesystem usage /
-    ```
-
-12. **Enable and start beesd**:
-    ```bash
-    systemctl status beesd-root
-    systemctl start beesd-root
-    systemctl enable beesd-root
-    ```
-
-13. **Force compression on existing files** (optional but recommended):
-    ```bash
-    # This will compress existing files with zstd
-    btrfs filesystem defragment -r -czstd /
-    ```
-
-## Post-Migration Verification
-
-### Check System Health
-```bash
-# Verify btrfs health
-btrfs scrub start /
-btrfs scrub status /
-
-# Check compression effectiveness
-compsize /
-
-# Monitor beesd deduplication
-journalctl -u beesd-root -f
-
-# Check filesystem usage
-btrfs filesystem usage /
-df -h /
-```
-
-### Performance Monitoring
-```bash
-# Monitor beesd hash table
-ls -lh /.beeshash
-
-# Check compression ratio over time
-compsize /home /nix /var
-```
-
-## Expected Benefits
-
-### Space Savings
-- **Compression**: 20-30% reduction in disk usage from zstd
-- **Deduplication**: Additional 10-20% savings on duplicate files
-- **Combined**: Potentially 30-40% total space savings
-
-### Performance Impact
-- **Compression**: Minimal CPU overhead, often improves I/O performance
-- **Deduplication**: Background process, minimal impact during normal use
-- **Overall**: Should be neutral to positive performance impact
-
-## Rollback Plan (Emergency)
-
-If something goes wrong:
-
-1. **Boot from live USB**
-2. **Restore from backup**:
-   ```bash
-   cryptsetup luksOpen /dev/disk/by-uuid/4126fbd4-bd09-4ece-af0d-6fff414c21b3 luks-nixbook
-   mkfs.ext4 /dev/mapper/luks-nixbook
-   mount /dev/mapper/luks-nixbook /mnt
-   rsync -avxHAX --progress /path/to/backup/nixbook-backup/ /mnt/
-   ```
-3. **Restore original hardware-configuration.nix** with ext4 settings
-4. **Rebuild and reboot**
-
-## Troubleshooting
-
-### Common Issues
-
-**"Device busy" during conversion**:
-- Ensure no processes are accessing the filesystem
-- Check with `lsof` and `fuser`
-
-**UUID changed after conversion**:
-- Update hardware-configuration.nix with new UUID
-- Regenerate initrd: `nixos-rebuild switch`
-
-**Beesd service fails to start**:
-- Check disk space for hash table
-- Verify filesystem is btrfs: `mount | grep btrfs`
-- Check logs: `journalctl -u beesd-root`
-
-**Boot issues after conversion**:
-- Boot from live USB
-- Check /boot partition is mounted correctly
-- Verify LUKS UUIDs match in configuration
-- Rebuild bootloader: `nixos-rebuild switch --install-bootloader`
-
-## Maintenance
-
-### Regular Tasks
-```bash
-# Monthly scrub (checks for corruption)
-btrfs scrub start /
-
-# Monitor compression effectiveness
-compsize /
-
-# Check beesd deduplication status
-systemctl status beesd-root
-```
-
-### Space Management
-```bash
-# Balance filesystem (defragments and optimizes)
-btrfs balance start -dusage=50 /
-
-# Check for space issues
-btrfs filesystem usage /
-```
-
-This migration preserves all your data while gaining the benefits of modern btrfs features including transparent compression and automatic deduplication.

roles/btrfs/default.nix

@@ -1,168 +0,0 @@
-{ lib, config, pkgs, ... }:
-
-with lib;
-
-let
-  cfg = config.roles.btrfs;
-in
-{
-  options.roles.btrfs = {
-    enable = mkEnableOption "Enable btrfs filesystem management";
-    
-    filesystems = mkOption {
-      type = types.attrsOf (types.submodule {
-        options = {
-          # Filesystem-level maintenance options
-          scrub = {
-            enable = mkOption { 
-              type = types.bool; 
-              default = true;
-              description = "Enable automatic scrubbing for this filesystem";
-            };
-            interval = mkOption { 
-              type = types.str; 
-              default = "weekly";
-              description = "Scrub interval (systemd timer format)";
-            };
-          };
-          deduplication = {
-            enable = mkOption { 
-              type = types.bool; 
-              default = false;
-              description = "Enable beesd deduplication for this filesystem";
-            };
-            hashTableSizeMB = mkOption { 
-              type = types.int; 
-              default = 1024;
-              description = "Hash table size in MB (should be multiple of 16)";
-            };
-            verbosity = mkOption { 
-              type = types.str; 
-              default = "info";
-              description = "Logging verbosity level";
-            };
-          };
-          balance = {
-            enable = mkOption { 
-              type = types.bool; 
-              default = false;
-              description = "Enable periodic balance operations";
-            };
-            interval = mkOption { 
-              type = types.str; 
-              default = "monthly";
-              description = "Balance interval (systemd timer format)";
-            };
-            dataUsage = mkOption { 
-              type = types.int; 
-              default = 50;
-              description = "Data usage threshold for balance";
-            };
-            metadataUsage = mkOption { 
-              type = types.int; 
-              default = 50;
-              description = "Metadata usage threshold for balance";
-            };
-          };
-          
-          # Mountpoint-based configuration
-          mountpoints = mkOption {
-            type = types.attrsOf (types.submodule {
-              options = {
-                subvolume = mkOption { 
-                  type = types.nullOr types.str; 
-                  default = null;
-                  description = "Subvolume name. If null, uses default subvolume.";
-                };
-                compression = mkOption { 
-                  type = types.str; 
-                  default = "zstd";
-                  description = "Compression algorithm (zstd, lzo, lz4, none)";
-                };
-                autodefrag = mkOption { 
-                  type = types.bool; 
-                  default = false;
-                  description = "Enable automatic defragmentation";
-                };
-                extraOptions = mkOption { 
-                  type = types.listOf types.str; 
-                  default = [];
-                  description = "Additional mount options";
-                };
-              };
-            });
-            default = {};
-            description = "Mountpoint configurations for this filesystem";
-          };
-        };
-      });
-      default = {};
-      description = "Btrfs filesystems configuration";
-    };
-  };
-
-  config = mkIf cfg.enable {
-    # Generate fileSystems configuration from mountpoints
-    fileSystems = mkMerge (flatten (mapAttrsToList (device: fsCfg:
-      mapAttrsToList (mountpoint: mountCfg:
-        {
-          ${mountpoint} = {
-            device = device;
-            fsType = "btrfs";
-            options = 
-              (optional (mountCfg.subvolume != null) "subvol=${mountCfg.subvolume}") ++
-              [ "compress=${mountCfg.compression}" ] ++
-              (optional mountCfg.autodefrag "autodefrag") ++
-              mountCfg.extraOptions;
-          };
-        }
-      ) fsCfg.mountpoints
-    ) cfg.filesystems));
-    
-    # Configure scrub service using NixOS built-in
-    services.btrfs.autoScrub = mkIf (any (fs: fs.scrub.enable) (attrValues cfg.filesystems)) {
-      enable = true;
-      interval = "weekly"; # TODO: Make this configurable per filesystem
-      fileSystems = attrNames (filterAttrs (_: fs: fs.scrub.enable) cfg.filesystems);
-    };
-    
-    # Configure beesd for filesystems with deduplication enabled
-    services.beesd.filesystems = mapAttrs' (device: fsCfg: 
-      nameValuePair (replaceStrings ["/"] ["_"] (replaceStrings ["-"] ["_"] device)) {
-        spec = device;
-        hashTableSizeMB = fsCfg.deduplication.hashTableSizeMB;
-        verbosity = fsCfg.deduplication.verbosity;
-      }
-    ) (filterAttrs (_: fs: fs.deduplication.enable) cfg.filesystems);
-    
-    # Custom balance services for filesystems with balance enabled
-    systemd.services = mkMerge (mapAttrsToList (device: fsCfg: mkIf fsCfg.balance.enable {
-      "btrfs-balance-${replaceStrings ["/"] ["-"] (replaceStrings ["-"] ["_"] device)}" = {
-        description = "Balance btrfs filesystem ${device}";
-        script = ''
-          ${pkgs.btrfs-progs}/bin/btrfs balance start \
-            -dusage=${toString fsCfg.balance.dataUsage} \
-            -musage=${toString fsCfg.balance.metadataUsage} \
-            ${device}
-        '';
-        serviceConfig = {
-          Type = "oneshot";
-          Nice = 19;
-          IOSchedulingClass = "idle";
-        };
-      };
-    }) cfg.filesystems);
-    
-    # Balance timers
-    systemd.timers = mkMerge (mapAttrsToList (device: fsCfg: mkIf fsCfg.balance.enable {
-      "btrfs-balance-${replaceStrings ["/"] ["-"] (replaceStrings ["-"] ["_"] device)}" = {
-        description = "Periodic balance for ${device}";
-        wantedBy = [ "timers.target" ];
-        timerConfig = {
-          OnCalendar = fsCfg.balance.interval;
-          Persistent = true;
-        };
-      };
-    }) cfg.filesystems);
-  };
-}

roles/default.nix

@@ -6,7 +6,6 @@ with lib;
   imports = [
     ./audio
     ./bluetooth
-    ./btrfs
     ./desktop
     ./kodi
     ./nfs-mounts

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";
     };
 }