[i3] Setup brightness control with ddcutil

Fixes for stable systems
[steamos] Add virtual malitt-keyboard
2025-11-19 19:41:50 -08:00 · 2025-11-19 19:41:34 -08:00 · 2025-11-18 08:56:05 -08:00 · 2025-11-18 08:55:49 -08:00 · 2025-11-18 08:55:13 -08:00 · 2025-11-18 08:54:46 -08:00
17 changed files with 1073 additions and 42 deletions
--- a/STEAM_DECK_JOVIAN_SETUP.md
+++ b/STEAM_DECK_JOVIAN_SETUP.md
@@ -0,0 +1,280 @@
+# Steam Deck (nix-deck) Jovian-NixOS Setup Guide
+
+This document describes the setup for installing and maintaining NixOS with Jovian-NixOS on a Steam Deck.
+
+## Overview
+
+The `nix-deck` configuration provides:
+- **Jovian-NixOS integration** for Steam Deck hardware support
+- **Remote building** using `zix790prors` as the build host
+- **SteamOS role** for easy Steam Deck UI configuration
+- **Compatibility shim** for using Jovian on NixOS 25.05 stable
+
+## Architecture
+
+### Remote Building
+
+The setup uses distributed builds to avoid slow compilation on the Steam Deck:
+
+- **Build Host**: `zix790prors` (powerful desktop)
+  - Runs as a dedicated `nix-builder` user (not root)
+  - Accepts SSH connections from client machines
+  - Performs all heavy compilation work
+
+- **Build Clients**: `nix-book` and `nix-deck`
+  - Automatically offload builds to `zix790prors`
+  - Fall back to local building if remote builder is unavailable
+  - Steam Deck heavily prefers remote (speedFactor=4)
+
+### Jovian-NixOS Integration
+
+- **Jovian module**: Provides Steam Deck hardware support, drivers, and Steam UI
+- **Compatibility layer**: `roles/jovian-compat.nix` provides `services.logind.settings` for NixOS 25.05
+  - **IMPORTANT**: Remove this when upgrading to NixOS 25.11+
+  - An assertion will fail the build if used on 25.11+
+
+- **SteamOS role**: `roles.desktop.steamos` abstracts Jovian configuration
+  ```nix
+  roles.desktop.steamos = {
+    enable = true;
+    autoStart = false;  # Set to true to boot directly to Steam UI
+    desktopSession = "plasmawayland";
+  };
+  ```
+
+## Initial Installation
+
+### Prerequisites
+
+1. Steam Deck in recovery mode or booted to a live Linux environment
+2. SSH access enabled on the Steam Deck
+3. SSH key set up for passwordless authentication
+
+### Option 1: Using nixos-anywhere (Initial Install Only)
+
+```bash
+# From your main machine
+nix run github:nix-community/nixos-anywhere -- \
+  --flake .#nix-deck \
+  root@<steam-deck-ip>
+```
+
+**Note**: This is only for the initial install. For updates, see below.
+
+### Option 2: Manual Installation
+
+1. Boot Steam Deck from NixOS installer USB
+2. Partition and format the disk
+3. Mount filesystems
+4. Clone this repository
+5. Generate hardware config:
+   ```bash
+   nixos-generate-config --show-hardware-config > /tmp/hw.nix
+   ```
+6. Copy the hardware config content to `machines/nix-deck/hardware-configuration.nix`
+7. Keep the `jovian.devices.steamdeck` settings in the file
+8. Install:
+   ```bash
+   nixos-install --flake .#nix-deck
+   ```
+
+## Updates and Rebuilds
+
+### Method 1: Remote Build and Deploy (Recommended)
+
+Build on your main machine, deploy to Steam Deck:
+
+```bash
+# From nix-book or zix790prors
+nixos-rebuild switch \
+  --flake .#nix-deck \
+  --target-host root@nix-deck \
+  --build-host localhost
+```
+
+### Method 2: On-Device Rebuild (Uses Remote Builder)
+
+The Steam Deck is configured to automatically use `zix790prors` as a remote builder:
+
+```bash
+# SSH into the Steam Deck
+ssh root@nix-deck
+
+# This will automatically build on zix790prors
+nixos-rebuild switch --flake /path/to/nixos-configs#nix-deck
+```
+
+The build will automatically happen on `zix790prors` and be deployed locally.
+
+## Remote Builder Setup
+
+### On the Build Host (zix790prors)
+
+The configuration creates a `nix-builder` user that client machines connect to:
+
+```nix
+roles.remote-build.enableBuilder = true;
+```
+
+### On Client Machines (nix-book, nix-deck)
+
+Configure the remote builder:
+
+```nix
+roles.remote-build.builders = [{
+  hostName = "zix790prors";
+  maxJobs = 16;
+  speedFactor = 4;  # Higher = prefer remote more
+}];
+```
+
+### SSH Key Setup
+
+1. Generate SSH key on the builder host for the `nix-builder` user:
+   ```bash
+   sudo -u nix-builder ssh-keygen -t ed25519 -f /var/lib/nix-builder/.ssh/id_ed25519
+   ```
+
+2. Copy the public key to client machines:
+   ```bash
+   # Add to /var/lib/nix-builder/.ssh/authorized_keys on zix790prors
+   ```
+
+3. On client machines, ensure you can connect:
+   ```bash
+   ssh nix-builder@zix790prors
+   ```
+
+## Configuration Files
+
+### Key Files Created/Modified
+
+- `flake.nix` - Added Jovian input and nix-deck configuration
+- `roles/jovian-compat.nix` - Compatibility shim (remove in 25.11+)
+- `roles/desktop/steamos.nix` - SteamOS/Jovian role abstraction
+- `roles/remote-build/default.nix` - Remote builder role
+- `machines/nix-deck/configuration.nix` - Steam Deck system config
+- `machines/nix-deck/hardware-configuration.nix` - Hardware config (placeholder)
+
+### Example Configuration
+
+```nix
+# machines/nix-deck/configuration.nix
+{
+  roles = {
+    desktop = {
+      enable = true;
+      wayland = true;
+      gaming.enable = true;
+      kde = true;
+      sddm = true;
+      steamos = {
+        enable = true;
+        autoStart = false;  # or true to boot to Steam UI
+        desktopSession = "plasmawayland";
+      };
+    };
+    remote-build.builders = [{
+      hostName = "zix790prors";
+      maxJobs = 16;
+      speedFactor = 4;
+    }];
+  };
+}
+```
+
+## Jovian Features
+
+### Enabled by Default
+
+- Steam Deck hardware support (`jovian.devices.steamdeck.enable`)
+- Steam UI (`jovian.steam.enable`)
+- Decky Loader plugin system (`jovian.decky-loader.enable`)
+
+### Optional Features
+
+Set in the hardware-configuration.nix:
+
+```nix
+jovian.devices.steamdeck = {
+  enable = true;
+  autoUpdate = false;  # Auto-update BIOS/controller firmware
+};
+```
+
+### Manual Firmware Updates
+
+```bash
+# BIOS update
+sudo jupiter-biosupdate
+
+# Controller update
+sudo jupiter-controller-update
+
+# Docking station (connect via USB-C first)
+jupiter-dock-updater
+```
+
+## Troubleshooting
+
+### Remote Builds Not Working
+
+1. Check SSH connectivity:
+   ```bash
+   ssh nix-builder@zix790prors
+   ```
+
+2. Verify builder is trusted:
+   ```bash
+   # On zix790prors
+   nix show-config | grep trusted-users
+   ```
+
+3. Check build logs:
+   ```bash
+   journalctl -u nix-daemon -f
+   ```
+
+### Jovian Not Working
+
+1. Ensure you're on NixOS 25.05 or the compatibility layer is removed for 25.11+
+2. Check Jovian is imported in flake.nix
+3. Verify hardware config has `jovian.devices.steamdeck.enable = true`
+
+### Compatibility Layer Issues
+
+If you see an error about `jovian-compat.nix` being incompatible:
+
+1. You're running NixOS 25.11 or later
+2. Remove `./roles/jovian-compat.nix` from `flake.nix`
+3. Jovian should work natively on 25.11+
+
+## Future Upgrades
+
+### Upgrading to NixOS 25.11
+
+1. Update `nixpkgs` input in flake.nix to 25.11
+2. Remove `./roles/jovian-compat.nix` from flake.nix imports
+3. The assertion in jovian-compat.nix will prevent accidental use
+4. Test the build
+5. Deploy
+
+### Switching to Unstable
+
+If you need Jovian to follow unstable nixpkgs:
+
+1. Edit `flake.nix`:
+   ```nix
+   jovian = {
+     url = "github:Jovian-Experiments/Jovian-NixOS";
+     inputs.nixpkgs.follows = "nixpkgs-unstable";
+   };
+   ```
+
+2. This only affects Jovian packages, not your base system
+
+## Additional Resources
+
+- [Jovian-NixOS Documentation](https://jovian-experiments.github.io/Jovian-NixOS/)
+- [Jovian Steam Deck Guide](https://jovian-experiments.github.io/Jovian-NixOS/devices/valve-steam-deck/)
+- [NixOS Remote Builds](https://nixos.org/manual/nix/stable/advanced-topics/distributed-builds.html)
--- a/flake.lock
+++ b/flake.lock
@@ -57,6 +57,48 @@
        "type": "github"
      }
    },
+    "home-manager-unstable": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1763416652,
+        "narHash": "sha256-8EBEEvtzQ11LCxpQHMNEBQAGtQiCu/pqP9zSovDSbNM=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "ea164b7c9ccdc2321379c2ff78fd4317b4c41312",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "master",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "jovian": {
+      "inputs": {
+        "nix-github-actions": "nix-github-actions",
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1763223001,
+        "narHash": "sha256-Hi6XxTJJjKsDrO+D0fYXS88ehCYzQkZlp9qxX1zoM1s=",
+        "owner": "Jovian-Experiments",
+        "repo": "Jovian-NixOS",
+        "rev": "68a1bcc019378272e601558719f82005a80ddab0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Jovian-Experiments",
+        "repo": "Jovian-NixOS",
+        "type": "github"
+      }
+    },
    "nix-darwin": {
      "inputs": {
        "nixpkgs": [
@@ -64,11 +106,11 @@
        ]
      },
      "locked": {
-        "lastModified": 1759509947,
-        "narHash": "sha256-4XifSIHfpJKcCf5bZZRhj8C4aCpjNBaE3kXr02s4rHU=",
+        "lastModified": 1762912391,
+        "narHash": "sha256-4hpBE7bGd24SfD28rzMdUGXsLsNEYxCCrTipFdoqoNM=",
        "owner": "nix-darwin",
        "repo": "nix-darwin",
-        "rev": "000eadb231812ad6ea6aebd7526974aaf4e79355",
+        "rev": "d76299b2cd01837c4c271a7b5186e3d5d8ebd126",
        "type": "github"
      },
      "original": {
@@ -78,17 +120,39 @@
        "type": "github"
      }
    },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "jovian",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1729697500,
+        "narHash": "sha256-VFTWrbzDlZyFHHb1AlKRiD/qqCJIripXKiCSFS8fAOY=",
+        "owner": "zhaofengli",
+        "repo": "nix-github-actions",
+        "rev": "e418aeb728b6aa5ca8c5c71974e7159c2df1d8cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "zhaofengli",
+        "ref": "matrix-name",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
    "nixos-wsl": {
      "inputs": {
        "flake-compat": "flake-compat",
        "nixpkgs": "nixpkgs"
      },
      "locked": {
-        "lastModified": 1762251193,
-        "narHash": "sha256-CmSddz8e2kM+ITbYutluhKZyXXwI9Sg2lf7XXSvc8oY=",
+        "lastModified": 1763385941,
+        "narHash": "sha256-99CBNgyMvg3Zu/hxqixtShevrF4Kfr/qjtizQ6oseVI=",
        "owner": "nix-community",
        "repo": "NixOS-WSL",
-        "rev": "e001844d4553aef268f97b32d3a825b6370eed91",
+        "rev": "cc6483354b236c2fc95cc1d4ba1f0f40b7345e69",
        "type": "github"
      },
      "original": {
@@ -100,11 +164,11 @@
    },
    "nixpkgs": {
      "locked": {
-        "lastModified": 1761907660,
-        "narHash": "sha256-kJ8lIZsiPOmbkJypG+B5sReDXSD1KGu2VEPNqhRa/ew=",
+        "lastModified": 1762977756,
+        "narHash": "sha256-4PqRErxfe+2toFJFgcRKZ0UI9NSIOJa+7RXVtBhy4KE=",
        "owner": "NixOS",
        "repo": "nixpkgs",
-        "rev": "2fb006b87f04c4d3bdf08cfdbc7fab9c13d94a15",
+        "rev": "c5ae371f1a6a7fd27823bc500d9390b38c05fa55",
        "type": "github"
      },
      "original": {
@@ -116,11 +180,11 @@
    },
    "nixpkgs-unstable": {
      "locked": {
-        "lastModified": 1762596750,
-        "narHash": "sha256-rXXuz51Bq7DHBlfIjN7jO8Bu3du5TV+3DSADBX7/9YQ=",
+        "lastModified": 1763283776,
+        "narHash": "sha256-Y7TDFPK4GlqrKrivOcsHG8xSGqQx3A6c+i7novT85Uk=",
        "owner": "nixos",
        "repo": "nixpkgs",
-        "rev": "b6a8526db03f735b89dd5ff348f53f752e7ddc8e",
+        "rev": "50a96edd8d0db6cc8db57dab6bb6d6ee1f3dc49a",
        "type": "github"
      },
      "original": {
@@ -132,11 +196,11 @@
    },
    "nixpkgs_2": {
      "locked": {
-        "lastModified": 1762498405,
-        "narHash": "sha256-Zg/SCgCaAioc0/SVZQJxuECGPJy+OAeBcGeA5okdYDc=",
+        "lastModified": 1763049705,
+        "narHash": "sha256-A5LS0AJZ1yDPTa2fHxufZN++n8MCmtgrJDtxFxrH4S8=",
        "owner": "nixos",
        "repo": "nixpkgs",
-        "rev": "6faeb062ee4cf4f105989d490831713cc5a43ee1",
+        "rev": "3acb677ea67d4c6218f33de0db0955f116b7588c",
        "type": "github"
      },
      "original": {
@@ -169,15 +233,41 @@
        "type": "github"
      }
    },
+    "plasma-manager-unstable": {
+      "inputs": {
+        "home-manager": [
+          "home-manager-unstable"
+        ],
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1762784320,
+        "narHash": "sha256-odsk96Erywk5hs0dhArF38zb7Oe0q6LZ70gXbxAPKno=",
+        "owner": "nix-community",
+        "repo": "plasma-manager",
+        "rev": "7911a0f8a44c7e8b29d031be3149ee8943144321",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "plasma-manager",
+        "type": "github"
+      }
+    },
    "root": {
      "inputs": {
        "google-cookie-retrieval": "google-cookie-retrieval",
        "home-manager": "home-manager",
+        "home-manager-unstable": "home-manager-unstable",
+        "jovian": "jovian",
        "nix-darwin": "nix-darwin",
        "nixos-wsl": "nixos-wsl",
        "nixpkgs": "nixpkgs_2",
        "nixpkgs-unstable": "nixpkgs-unstable",
-        "plasma-manager": "plasma-manager"
+        "plasma-manager": "plasma-manager",
+        "plasma-manager-unstable": "plasma-manager-unstable"
      }
    }
  },
--- a/flake.nix
+++ b/flake.nix
@@ -16,22 +16,39 @@
      inputs.nixpkgs.follows = "nixpkgs";
    };

+    home-manager-unstable = {
+      url = "github:nix-community/home-manager/master";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
+
    plasma-manager = {
      url = "github:nix-community/plasma-manager";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };

+    plasma-manager-unstable = {
+      url = "github:nix-community/plasma-manager";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+      inputs.home-manager.follows = "home-manager-unstable";
+    };
+
    google-cookie-retrieval = {
      url = "git+https://git.johnogle.info/johno/google-cookie-retrieval.git";
      inputs.nixpkgs.follows = "nixpkgs";
    };
+
+    jovian = {
+      url = "github:Jovian-Experiments/Jovian-NixOS";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
  };

  outputs = { self, nixpkgs, nixpkgs-unstable, nixos-wsl, ... } @ inputs: let
    nixosModules = [
      ./roles
    ] ++ [
+      ./roles/jovian-compat.nix
      inputs.home-manager.nixosModules.home-manager
      {
        nixpkgs.overlays = [
@@ -41,12 +58,42 @@
              config.allowUnfree = true;
            };
            custom = prev.callPackage ./packages {};
+            # Compatibility: bitwarden renamed to bitwarden-desktop in unstable
+            bitwarden-desktop = prev.bitwarden-desktop or prev.bitwarden;
          })
        ];
        home-manager.useGlobalPkgs = true;
        home-manager.useUserPackages = true;
        home-manager.sharedModules = [
-          inputs.plasma-manager.homeManagerModules.plasma-manager
+          inputs.plasma-manager.homeModules.plasma-manager
+        ];
+        home-manager.extraSpecialArgs = {
+          globalInputs = inputs;
+        };
+      }
+    ];
+    # Modules for unstable-based systems (like nix-deck)
+    nixosModulesUnstable = [
+      ./roles
+    ] ++ [
+      inputs.home-manager-unstable.nixosModules.home-manager
+      inputs.jovian.nixosModules.jovian
+      {
+        nixpkgs.overlays = [
+          (final: prev: {
+            unstable = import nixpkgs-unstable {
+              system = prev.system;
+              config.allowUnfree = true;
+            };
+            custom = prev.callPackage ./packages {};
+            # Compatibility: bitwarden renamed to bitwarden-desktop in unstable
+            bitwarden-desktop = prev.bitwarden-desktop or prev.bitwarden;
+          })
+        ];
+        home-manager.useGlobalPkgs = true;
+        home-manager.useUserPackages = true;
+        home-manager.sharedModules = [
+          inputs.plasma-manager-unstable.homeModules.plasma-manager
        ];
        home-manager.extraSpecialArgs = {
          globalInputs = inputs;
@@ -65,6 +112,8 @@
              config.allowUnfree = true;
            };
            custom = prev.callPackage ./packages {};
+            # Compatibility: bitwarden renamed to bitwarden-desktop in unstable
+            bitwarden-desktop = prev.bitwarden-desktop or prev.bitwarden;
          })
        ];
        home-manager.useGlobalPkgs = true;
@@ -142,6 +191,18 @@
      ];
    };

+    # Steam Deck configuration (using unstable for better Jovian compatibility)
+    nixosConfigurations.nix-deck = nixpkgs-unstable.lib.nixosSystem rec {
+      system = "x86_64-linux";
+      modules = nixosModulesUnstable ++ [
+        ./machines/nix-deck/configuration.nix
+        {
+          home-manager.users.johno = import ./home/home-desktop.nix;
+          home-manager.extraSpecialArgs = { inherit system; };
+        }
+      ];
+    };
+
    # Darwin/macOS configurations
    darwinConfigurations."blkfv4yf49kt7" = inputs.nix-darwin.lib.darwinSystem rec {
      system = "aarch64-darwin";
--- a/home/modules/i3+sway/default.nix
+++ b/home/modules/i3+sway/default.nix
@@ -87,8 +87,8 @@ let

      "${shared_config.modifier}+r" = "mode resize";

-      "XF86MonBrightnessUp" = "exec brightnessctl s +5%";
-      "XF86MonBrightnessDown" = "exec brightnessctl s 5%-";
+      "XF86MonBrightnessUp" = "exec ddcutil setvcp 10 + 5";
+      "XF86MonBrightnessDown" = "exec ddcutil setvcp 10 - 5";
    };
  } cfg.extraSharedConfig;
 in {
@@ -105,12 +105,144 @@ in {
  };

  config = {
+    # i3blocks configuration file
+    home.file.".config/i3blocks/config".text = ''
+      # i3blocks config - replicating waybar setup
+      separator_block_width=15
+      markup=pango
+
+      [disk]
+      command=df -h / | awk 'NR==2 {print "💾 " $5}'
+      interval=30
+      separator=true
+
+      [cpu]
+      command=top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print "🧠 " int(100 - $1) "%"}'
+      interval=2
+      separator=true
+
+      [memory]
+      command=free | awk 'NR==2 {printf "🐏 %.0f%%\n", $3*100/$2}'
+      interval=5
+      separator=true
+
+      [pulseaudio]
+      command=${pkgs.writeShellScript "i3blocks-pulseaudio" ''
+        volume=$(pactl get-sink-volume @DEFAULT_SINK@ | grep -Po '\d+%' | head -1)
+        muted=$(pactl get-sink-mute @DEFAULT_SINK@ | grep -o 'yes')
+        if [ "$muted" = "yes" ]; then
+          echo "🔇"
+        else
+          vol_num=''${volume%\%}
+          if [ $vol_num -le 33 ]; then
+            echo "🔈 $volume"
+          elif [ $vol_num -le 66 ]; then
+            echo "🔉 $volume"
+          else
+            echo "🔊 $volume"
+          fi
+        fi
+      ''}
+      interval=1
+      signal=10
+      separator=true
+
+      [backlight]
+      command=${pkgs.writeShellScript "i3blocks-backlight" ''
+        if command -v ddcutil &>/dev/null; then
+          # Handle mouse scroll events
+          case $BLOCK_BUTTON in
+            4) ddcutil setvcp 10 + 5 ;;  # Scroll up - increase brightness
+            5) ddcutil setvcp 10 - 5 ;;  # Scroll down - decrease brightness
+          esac
+
+          # Display current brightness
+          brightness=$(ddcutil getvcp 10 2>/dev/null | grep -oP 'current value =\s*\K\d+')
+          if [ -n "$brightness" ]; then
+            echo "☀️ $brightness%"
+          fi
+        fi
+      ''}
+      interval=5
+      separator=true
+
+      [network]
+      command=${pkgs.writeShellScript "i3blocks-network" ''
+        if iwgetid -r &>/dev/null; then
+          ssid=$(iwgetid -r)
+          signal=$(grep "^\s*w" /proc/net/wireless | awk '{print int($3 * 100 / 70)}')
+          echo "📶 $ssid ($signal%)"
+        else
+          ip=$(ip -4 addr show | grep -oP '(?<=inet\s)\d+(\.\d+){3}' | grep -v '127.0.0.1' | head -1)
+          if [ -n "$ip" ]; then
+            echo "🔌 $ip"
+          else
+            echo "❌"
+          fi
+        fi
+      ''}
+      interval=5
+      separator=true
+
+      [battery]
+      command=${pkgs.writeShellScript "i3blocks-battery" ''
+        if [ -d /sys/class/power_supply/BAT0 ]; then
+          capacity=$(cat /sys/class/power_supply/BAT0/capacity)
+          status=$(cat /sys/class/power_supply/BAT0/status)
+
+          if [ "$status" = "Charging" ]; then
+            echo "⚡ $capacity%"
+          else
+            echo "🔋 $capacity%"
+          fi
+        fi
+      ''}
+      interval=10
+      separator=true
+
+      [time]
+      command=date '+%Y-%m-%d %H:%M'
+      interval=1
+      separator=false
+    '';
+
    xsession.windowManager.i3 = let
      base_i3_config = recursiveUpdate shared_config {
        bars = [{
          position = "bottom";
-          statusCommand = "${pkgs.i3status}/bin/i3status";
+          statusCommand = "${pkgs.i3blocks}/bin/i3blocks";
          trayOutput = "primary";  # Enable system tray on primary output
+          fonts = {
+            names = [ "Fira Code" "monospace" ];
+            size = 11.0;
+          };
+          colors = {
+            background = "#000000";
+            statusline = "#ffffff";
+            separator = "#666666";
+
+            # Workspace button colors (matching waybar)
+            focusedWorkspace = {
+              border = "#285577";
+              background = "#285577";
+              text = "#ffffff";
+            };
+            activeWorkspace = {
+              border = "#5f676a";
+              background = "#5f676a";
+              text = "#ffffff";
+            };
+            inactiveWorkspace = {
+              border = "#222222";
+              background = "#222222";
+              text = "#888888";
+            };
+            urgentWorkspace = {
+              border = "#900000";
+              background = "#900000";
+              text = "#ffffff";
+            };
+          };
        }];
        keybindings = shared_config.keybindings // {
          "${shared_config.modifier}+d" = "exec rofi -show drun";
@@ -174,6 +306,13 @@ in {
            bg = "${../../wallpapers/metroid-samus-returns-kz-3440x1440.jpg} fill";
          };
        };
+        startup = [
+          # Launch waybar status bar
+          {
+            command = "waybar";
+            always = false;
+          }
+        ];
      };
    in {
      enable = true;
@@ -182,7 +321,122 @@ in {

    programs.waybar = {
      enable = true;
-      systemd.enable = true;
+      systemd.enable = false;  # Don't auto-start via systemd - only launch in sway
+      settings = {
+        mainBar = {
+          layer = "top";
+          position = "bottom";
+          height = 30;
+          spacing = 4;
+
+          modules-left = [ "sway/workspaces" "sway/mode" ];
+          modules-center = [ ];
+          modules-right = [ "disk" "cpu" "memory" "pulseaudio" "backlight" "network" "battery" "tray" "clock" ];
+
+          "sway/workspaces" = {
+            disable-scroll = true;
+            all-outputs = true;
+          };
+
+          "clock" = {
+            format = "{:%Y-%m-%d %H:%M}";
+            tooltip-format = "<tt><small>{calendar}</small></tt>";
+            calendar = {
+              mode = "year";
+              mode-mon-col = 3;
+              weeks-pos = "right";
+              on-scroll = 1;
+              format = {
+                months = "<span color='#ffead3'><b>{}</b></span>";
+                days = "<span color='#ecc6d9'><b>{}</b></span>";
+                weeks = "<span color='#99ffdd'><b>W{}</b></span>";
+                weekdays = "<span color='#ffcc66'><b>{}</b></span>";
+                today = "<span color='#ff6699'><b><u>{}</u></b></span>";
+              };
+            };
+          };
+
+          "disk" = {
+            interval = 30;
+            format = "💾 {percentage_used}%";
+            path = "/";
+            tooltip-format = "Used: {used} / {total} ({percentage_used}%)\nFree: {free} ({percentage_free}%)";
+          };
+
+          "cpu" = {
+            format = "🧠 {usage}%";
+            tooltip = false;
+          };
+
+          "memory" = {
+            format = "🐏 {percentage}%";
+            tooltip-format = "RAM: {used:0.1f}G / {total:0.1f}G";
+          };
+
+          "pulseaudio" = {
+            format = "{icon} {volume}%";
+            format-muted = "🔇";
+            format-icons = {
+              headphone = "🎧";
+              default = [ "🔈" "🔉" "🔊" ];
+            };
+            on-click = "pavucontrol";
+          };
+
+          "backlight" = {
+            format = "☀️ {percent}%";
+            tooltip = false;
+          };
+
+          "network" = {
+            format-wifi = "📶 {essid} ({signalStrength}%)";
+            format-ethernet = "🔌 {ipaddr}";
+            format-disconnected = "❌";
+            tooltip-format = "{ifname}: {ipaddr}/{cidr}";
+          };
+
+          "battery" = {
+            states = {
+              warning = 30;
+              critical = 15;
+            };
+            format = "{icon} {capacity}%";
+            format-charging = "⚡ {capacity}%";
+            format-icons = [ "🪫" "🔋" "🔋" "🔋" "🔋" ];
+          };
+
+          "tray" = {
+            spacing = 10;
+          };
+        };
+      };
+      style = ''
+        * {
+          padding: 0 4px;
+          font-family: "Fira Code", monospace;
+          font-size: 13px;
+        }
+
+        #workspaces button {
+          padding: 0 8px;
+          background-color: transparent;
+          color: #ffffff;
+          border: none;
+        }
+
+        #workspaces button.focused {
+          background-color: #285577;
+          font-weight: bold;
+        }
+
+        #workspaces button.visible {
+          background-color: #5f676a;
+        }
+
+        #workspaces button.urgent {
+          background-color: #900000;
+        }
+      '';
    };

    programs.rofi = {
@@ -200,7 +454,5 @@ in {
        sidebar-mode = true;
      };
    };
-
-    programs.i3status.enable = true;
  };
 }
--- a/home/roles/desktop/default.nix
+++ b/home/roles/desktop/default.nix
@@ -13,7 +13,7 @@ in
  config = mkIf cfg.enable {
    home.packages = with pkgs; [
      # Desktop applications
-      bitwarden
+      bitwarden-desktop
      dunst
      keepassxc
      unstable.ghostty
--- a/home/roles/media/default.nix
+++ b/home/roles/media/default.nix
@@ -18,6 +18,10 @@ in
      delfin
      moonlight-qt
      vlc
+
+      # Spotify client
+      # Using unstable version for better authentication support
+      unstable.ncspot
    ];
  };
 }
--- a/machines/nix-book/configuration.nix
+++ b/machines/nix-book/configuration.nix
@@ -21,6 +21,11 @@
    };
    nfs-mounts.enable = true;
    printing.enable = true;
+    remote-build.builders = [{
+      hostName = "zix790prors";
+      maxJobs = 16;
+      speedFactor = 3;
+    }];
    spotifyd.enable = true;
    users = {
      enable = true;
--- a/machines/nix-deck/configuration.nix
+++ b/machines/nix-deck/configuration.nix
@@ -0,0 +1,40 @@
+{ pkgs, ... }:
+{
+  imports = [
+    ./hardware-configuration.nix
+  ];
+
+  roles = {
+    audio.enable = true;
+    bluetooth.enable = true;
+    desktop = {
+      enable = true;
+      wayland = true;
+      gaming.enable = true;
+      kde = true;
+      steamos = {
+        enable = true;
+        autoStart = true;
+        desktopSession = "plasma";
+      };
+    };
+    remote-build.builders = [{
+      hostName = "zix790prors";
+      maxJobs = 16;
+      speedFactor = 4;  # Prefer remote heavily on Steam Deck
+    }];
+    users = {
+      enable = true;
+      extraGroups = [ "video" ];
+    };
+  };
+
+  # Bootloader
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "nix-deck";
+  networking.networkmanager.enable = true;
+
+  system.stateVersion = "25.05";
+}
--- a/machines/nix-deck/hardware-configuration.nix
+++ b/machines/nix-deck/hardware-configuration.nix
@@ -0,0 +1,51 @@
+# Hardware configuration for Steam Deck (nix-deck)
+# Generated from nixos-generate-config on 2025-11-17
+
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  # Steam Deck specific hardware configuration (Jovian)
+  jovian.devices.steamdeck = {
+    enable = true;
+    autoUpdate = false;  # Set to true if you want automatic firmware updates
+  };
+
+  # Kernel modules detected by nixos-generate-config
+  boot.initrd.availableKernelModules = [
+    "nvme"
+    "xhci_pci"
+    "usb_storage"
+    "uas"
+    "usbhid"
+    "sd_mod"
+    "sdhci_pci"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  # IMPORTANT: Update these filesystem configurations based on your actual partition layout
+  # The configuration below is a placeholder - adjust according to how you partitioned the disk
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "vfat";
+  };
+
+  swapDevices = [{
+    device = "/swapfile";
+    size = 8192;  # 8GB swap file
+  }];
+
+  # AMD CPU microcode updates
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
--- a/machines/zix790prors/configuration.nix
+++ b/machines/zix790prors/configuration.nix
@@ -19,7 +19,6 @@ with lib;
      enable = true;
      gaming = {
        enable = true;
-        emulation = true;
      };
      kde = true;
      sddm = true;
@@ -29,6 +28,7 @@ with lib;
    nfs-mounts.enable = true;
    nvidia.enable = true;
    printing.enable = true;
+    remote-build.enableBuilder = true;
    users.enable = true;
    virtualisation.enable = true;
  };
@@ -58,18 +58,9 @@ with lib;
  '';

  hardware.nvidia = {
-    # Modesetting is required.
    modesetting.enable = true;
-    
-    # Enable the Nvidia settings menu,
-    # accessible via `nvidia-settings`.
    nvidiaSettings = true;
-    
-    # Optionally, you may need to select the appropriate driver version for your specific GPU.
    package = pkgs.linuxPackages.nvidiaPackages.stable;
-    
-    # Use open source kernel modules (recommended for RTX/GTX 16xx and newer)
-    # Set to false if you have an older GPU
    open = true;
    
    # For gaming performance
--- a/roles/default.nix
+++ b/roles/default.nix
@@ -12,6 +12,7 @@ with lib;
    ./nfs-mounts
    ./nvidia
    ./printing
+    ./remote-build
    ./spotifyd
    ./users
    ./virtualisation
--- a/roles/desktop/default.nix
+++ b/roles/desktop/default.nix
@@ -11,7 +11,6 @@ with lib;
    kde = mkOption { type = types.bool; default = false; description = "Enable KDE."; };
    gaming = {
      enable = mkOption { type = types.bool; default = false; description = "Enable gaming support."; };
-      emulation = mkOption { type = types.bool; default = false; description = "Enable emulation support."; };
    };
    sddm = mkOption { type = types.bool; default = false; description = "Enable SDDM greeter."; };
  };
@@ -23,5 +22,6 @@ with lib;
    ./kde.nix
    ./programs.nix
    ./sddm.nix
+    ./steamos.nix
  ];
 }
--- a/roles/desktop/gaming.nix
+++ b/roles/desktop/gaming.nix
@@ -12,15 +12,12 @@ in
        steam
        lutris
        moonlight
-      ];

-      # Possibly other gaming specific services or settings
-    })
-
-    (mkIf (cfg.enable && cfg.gaming.emulation) {
-      environment.systemPackages = with pkgs; [
-        ryubing
+        # Emulators
        dolphin-emu
+        dolphin-emu-primehack
+        retroarch-full
+        ryubing
      ];
      # TODO: Remove me once dolphin-emu and dolphin-emu-primehack update
      #       dependencies to mbedtls from mbedtls_2 (which is currently)
--- a/roles/desktop/steamos.nix
+++ b/roles/desktop/steamos.nix
@@ -0,0 +1,51 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.roles.desktop;
+in
+{
+  options.roles.desktop.steamos = {
+    enable = mkEnableOption "SteamOS (Jovian) configuration";
+
+    autoStart = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Automatically start Steam Deck UI on boot";
+    };
+
+    user = mkOption {
+      type = types.str;
+      default = "johno";
+      description = "User to run Steam as";
+    };
+
+    desktopSession = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = "Desktop session to launch when switching to Desktop Mode";
+    };
+
+    enableDeckyLoader = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Enable Decky Loader plugin system";
+    };
+  };
+
+  config = mkIf (cfg.enable && cfg.steamos.enable) {
+    jovian.steam = {
+      enable = true;
+      autoStart = cfg.steamos.autoStart;
+      user = cfg.steamos.user;
+      desktopSession = cfg.steamos.desktopSession;
+    };
+
+    jovian.decky-loader.enable = cfg.steamos.enableDeckyLoader;
+
+    environment.systemPackages = with pkgs; [
+      maliit-keyboard
+    ];
+  };
+}
--- a/roles/desktop/x11.nix
+++ b/roles/desktop/x11.nix
@@ -19,8 +19,20 @@ in
          polkit_gnome                    # GNOME polkit authentication agent (more stable with i3)
          picom                           # Compositor for smooth rendering (important for Nvidia)
          networkmanagerapplet            # NetworkManager system tray applet
+          ddcutil                         # DDC/CI monitor control for brightness
        ];
      };
    };
+
+    # Enable DDC/CI support for monitor brightness control
+    boot.kernelModules = [ "i2c-dev" ];
+
+    # Add ddcutil udev rules and user permissions
+    hardware.i2c.enable = true;
+
+    # Install ddcutil system-wide
+    environment.systemPackages = with pkgs; [
+      ddcutil
+    ];
  };
 }
--- a/roles/jovian-compat.nix
+++ b/roles/jovian-compat.nix
@@ -0,0 +1,64 @@
+{ lib, config, ... }:
+
+# Minimal Jovian compatibility layer for NixOS stable (25.05)
+# Defines only the Jovian options used by roles/desktop/steamos.nix
+# No actual implementation - just option definitions to prevent evaluation errors
+# REMOVE THIS FILE when all systems are on NixOS 25.11+ or unstable
+
+with lib;
+
+let
+  nixosVersion = config.system.nixos.release;
+  isCompatibleVersion = versionOlder nixosVersion "25.11";
+in
+{
+  options.jovian = {
+    steam = {
+      enable = mkEnableOption "Steam (jovian-compat stub)";
+
+      autoStart = mkOption {
+        type = types.bool;
+        default = false;
+        description = "Auto-start Steam (jovian-compat stub)";
+      };
+
+      user = mkOption {
+        type = types.str;
+        default = "user";
+        description = "Steam user (jovian-compat stub)";
+      };
+
+      desktopSession = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = "Desktop session (jovian-compat stub)";
+      };
+    };
+
+    decky-loader = {
+      enable = mkEnableOption "Decky Loader (jovian-compat stub)";
+    };
+  };
+
+  config = mkMerge [
+    {
+      assertions = [
+        {
+          assertion = isCompatibleVersion;
+          message = ''
+            The Jovian compatibility shim (roles/jovian-compat.nix) is only needed for NixOS 25.05 and earlier.
+            You are running NixOS ${nixosVersion}.
+            Please remove 'roles/jovian-compat.nix' from your flake.nix nixosModules list.
+          '';
+        }
+      ];
+    }
+    # No config implementation - these options do nothing on stable systems
+    # steamos role is only enabled on nix-deck which uses unstable anyway
+    (mkIf config.jovian.steam.enable {
+      warnings = [
+        "Jovian is enabled but you're using the compatibility stub. This won't work correctly. Use NixOS unstable for Jovian support."
+      ];
+    })
+  ];
+}
--- a/roles/remote-build/default.nix
+++ b/roles/remote-build/default.nix
@@ -0,0 +1,132 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.roles.remote-build;
+in
+{
+  options.roles.remote-build = {
+    enableBuilder = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable this machine as a remote build host for other machines";
+    };
+
+    builderUser = mkOption {
+      type = types.str;
+      default = "nix-builder";
+      description = "User account for remote builders to connect as";
+    };
+
+    builders = mkOption {
+      type = types.listOf (types.submodule {
+        options = {
+          hostName = mkOption {
+            type = types.str;
+            description = "Hostname or IP address of the build machine";
+          };
+
+          systems = mkOption {
+            type = types.listOf types.str;
+            default = [ "x86_64-linux" ];
+            description = "Supported systems";
+          };
+
+          maxJobs = mkOption {
+            type = types.int;
+            default = 8;
+            description = "Maximum number of parallel build jobs";
+          };
+
+          speedFactor = mkOption {
+            type = types.int;
+            default = 2;
+            description = "Speed factor compared to local building (higher = prefer remote)";
+          };
+
+          supportedFeatures = mkOption {
+            type = types.listOf types.str;
+            default = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
+            description = "Supported build features";
+          };
+
+          sshUser = mkOption {
+            type = types.str;
+            default = "nix-builder";
+            description = "SSH user for connecting to the builder";
+          };
+
+          sshKey = mkOption {
+            type = types.nullOr types.path;
+            default = null;
+            description = "Path to SSH private key for authentication";
+          };
+        };
+      });
+      default = [];
+      description = "List of remote build machines to use";
+    };
+
+    fallbackToLocalBuild = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Fallback to local building if remote builders are unavailable";
+    };
+  };
+
+  config = mkMerge [
+    # Builder host configuration
+    (mkIf cfg.enableBuilder {
+      # Create dedicated builder user
+      users.users.${cfg.builderUser} = {
+        isSystemUser = true;
+        group = cfg.builderUser;
+        description = "Nix remote build user";
+        home = "/var/lib/${cfg.builderUser}";
+        createHome = true;
+        shell = pkgs.bashInteractive;
+        openssh.authorizedKeys.keyFiles = [];  # Will be populated by client machines
+      };
+
+      users.groups.${cfg.builderUser} = {};
+
+      # Ensure home directory has correct permissions
+      systemd.tmpfiles.rules = [
+        "d /var/lib/${cfg.builderUser} 0700 ${cfg.builderUser} ${cfg.builderUser} -"
+      ];
+
+      # Allow builder user to perform builds
+      nix.settings.trusted-users = [ cfg.builderUser ];
+
+      # Allow remote builds
+      services.openssh.enable = true;
+
+      # Ensure nix-daemon is accessible
+      nix.settings.allowed-users = [ "*" ];
+    })
+
+    # Client configuration (machines using remote builders)
+    (mkIf (cfg.builders != []) {
+      nix.buildMachines = map (builder: {
+        hostName = builder.hostName;
+        systems = builder.systems;
+        maxJobs = builder.maxJobs;
+        speedFactor = builder.speedFactor;
+        supportedFeatures = builder.supportedFeatures;
+        sshUser = builder.sshUser;
+        sshKey = builder.sshKey;
+      }) cfg.builders;
+
+      nix.distributedBuilds = true;
+
+      # Use substitutes from remote builders
+      nix.extraOptions = ''
+        builders-use-substitutes = true
+      '';
+
+      # Fallback to local build if remote unavailable
+      nix.settings.fallback = cfg.fallbackToLocalBuild;
+    })
+  ];
+}
Author	SHA1	Message	Date
John Ogle	a9772259f0	[i3] Setup brightness control with ddcutil	2025-11-19 19:41:50 -08:00
John Ogle	4f6d65316a	Fixes for stable systems	2025-11-19 19:41:34 -08:00
John Ogle	0b8e3bf527	[steamos] Add virtual malitt-keyboard	2025-11-18 08:56:05 -08:00
John Ogle	d3c906134b	[nix-deck] setup stuff	2025-11-18 08:55:49 -08:00
John Ogle	30b616dd93	[gaming] Always include emulators	2025-11-18 08:55:13 -08:00
John Ogle	c9252c42c2	[i3+sway] Only launch waybar in sway	2025-11-18 08:54:46 -08:00
John Ogle	fa7cb55c78	[nix-deck] Use NixOS unstable for better Jovian compatibility - Switch nix-deck to use nixpkgs-unstable and unstable home-manager/plasma-manager - Remove jovian-compat.nix shim (not needed on unstable) - Add bitwarden-desktop compatibility overlay for stable/unstable coexistence - Update hardware-configuration.nix with actual Steam Deck hardware detection - Add 8GB swap file configuration - Configure AMD CPU microcode updates This allows nix-deck to work with the latest Jovian-NixOS while keeping other machines on stable 25.05. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-17 16:40:11 -08:00
John Ogle	2283b0a6df	Add Steam Deck (nix-deck) configuration with Jovian-NixOS and remote building - Add Jovian-NixOS integration for Steam Deck hardware support - Create nix-deck machine configuration with SteamOS role - Add jovian-compat.nix for NixOS 25.05 compatibility (remove in 25.11+) - Create remote-build role for distributed builds - Configure zix790prors as build host - Configure nix-book and nix-deck to use remote builder with fallback - Add comprehensive setup documentation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-17 16:06:20 -08:00
John Ogle	4ea9437bb0	[zix790prors] Clean up some comments	2025-11-17 16:05:39 -08:00
John Ogle	d0760a22bd	[i3+sway] Replace i3status with i3blocks to replicate waybar Created i3blocks configuration with modules matching waybar setup including disk, CPU, memory, pulseaudio, backlight, network, battery, and clock. Applied matching color scheme and workspace button styling. i3blocks works with i3wm unlike waybar which only supports sway. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-11-17 16:05:29 -08:00
John Ogle	f67a12c29a	[gaming] Add additional emulators	2025-11-17 15:36:20 -08:00
John Ogle	fc8a43504d	[media] Add ncspot	2025-11-15 14:11:12 -08:00
John Ogle	4a73b3a5ae	[i3+sway] Customize waybar	2025-11-15 12:40:53 -08:00
John Ogle	be68202523	[plasma-manager] Fix warning	2025-11-15 12:40:37 -08:00