.continue/agents/ollama.yaml

@@ -0,0 +1,32 @@
+# This is an example configuration file
+# To learn more, see the full config.yaml reference: https://docs.continue.dev/reference
+name: ollama
+version: 1.0.0
+schema: v1
+# Define which models can be used
+# https://docs.continue.dev/customization/models
+models:
+    - name: StarCoder2 Local
+      provider: ollama
+      model: starcoder2:7b
+      modelTimeout: "5s"
+      roles:
+        - autocomplete
+      autocompleteOptions:
+        useCache: true
+        useImports: true
+        useRecentlyEdited: true
+    - name: Nomic Embed Local
+      provider: ollama
+      model: nomic-embed-text:latest
+      roles:
+        - embed
+    - name: Autodetect
+      provider: ollama
+      model: AUTODETECT
+      defaultCompletionOptions:
+        contextLength: 64000
+# MCP Servers that Continue can access
+# https://docs.continue.dev/customization/mcp-tools
+mcpServers:
+    - uses: anthropic/memory-mcp

.github/copilot-instructions.md

@@ -0,0 +1,698 @@
+# Nix Dotfiles Repository Guide
+
+This repository contains NixOS configurations for personal infrastructure. The setup is organized around a flake-based structure with per-system configurations and user-specific settings.
+
+## Project Structure
+
+- `flake.nix` - Main flake definition with inputs and outputs
+- `systems/` - Per-system configurations (e.g., `artemision`, `palatine-hill`)
+- `users/` - Per-user configurations using home-manager
+- `modules/` - Reusable Nix modules for common services
+- `lib/` - Custom Nix library functions
+- `hydra/` - Hydra CI/CD configuration
+- `secrets/` - SOPS encrypted secrets
+
+## Key Concepts
+
+### System Configuration
+
+Each system has its own directory under `systems/` containing:
+
+- `configuration.nix` - Main system configuration
+- Component modules (audio.nix, desktop.nix, etc.)
+- Hardware-specific configurations
+
+### User Configuration
+
+User configurations are in `users/<username>/`:
+
+- `home.nix` - Home-manager configuration using `home.packages` and imports
+- `secrets.yaml` - SOPS-encrypted secrets using age encryption
+- `non-server.nix` - Desktop-specific configurations
+
+### Nix Patterns
+
+1. **Module-based approach**: Uses Nix modules for organizing configuration
+1. **Home-manager integration**: User environment managed via home-manager
+1. **SOPS secrets**: Secrets managed with SOPS and age encryption
+1. **Flake-based**: Uses flakes for reproducible builds and development environments
+1. **Multi-system support**: Supports multiple machines with different configurations
+1. **Dynamic configuration generation**: Modules in the `modules/` directory are automatically imported into all systems (can be overridden per system). New systems are automatically discovered by `genSystems()`
+
+### Modern Nix Features
+
+This repository uses modern Nix features including:
+
+- **Flakes**: Enabled via `flake` experimental feature
+- **Nix Command**: Enabled via `nix-command` experimental feature
+- **Blake3 Hashes**: Enabled via `blake3-hashes` experimental feature
+- **Git Hashing**: Enabled via `git-hashing` experimental feature
+- **Verified Fetches**: Enabled via `verified-fetches` experimental feature
+
+### Key Commands
+
+- `nh os switch` - Apply system configuration (using nix-community/nh)
+- `nh home switch` - Apply user configuration (using nix-community/nh)
+- `nh os build` - Build a specific system (using nix-community/nh)
+- `nix build .#<system>` - Build a specific system
+- `nix run .#<system>` - Run a specific system
+- `nix flake update` - Update flake inputs
+
+### Development Workflow
+
+1. Make changes to system or user configuration
+1. Test with `nh os switch` or `nh home switch`
+1. For CI/CD, Hydra automatically builds and tests changes
+1. Secrets are managed with SOPS and age keys
+
+### Important Files
+
+- `flake.nix` - Main entry point for the flake
+- `systems/artemision/configuration.nix` - Example system configuration
+- `users/alice/home.nix` - Example user configuration
+- `modules/base.nix` - Base module with common settings
+- `hydra/jobsets.nix` - Hydra CI configuration
+
+### External Dependencies
+
+- NixOS unstable channel
+- Nixpkgs unstable channel
+- SOPS for secrets management
+- age for encryption
+- home-manager for user environments
+- nh (nix-community/nh) for simplified Nix operations
+
+### Nix MCP Server
+
+- Use the nix MCP server for looking up package names and options
+- Specify `unstable` channel if the channel is specifiable (e.g., for `pkgs.<package-name>`)
+
+## Dynamic Configuration System (lib/systems.nix)
+
+This repository automatically generates NixOS system configurations based on the folder structure. Understanding how `constructSystem` and `genSystems` work is essential when adding new systems or global modules.
+
+### How Configuration Generation Works
+
+The process happens in three stages:
+
+**Stage 1: Discovery** (`flake.nix` → `genSystems`)
+
+- `flake.nix` calls `genSystems inputs outputs src (src + "/systems")`
+- `genSystems` scans the `systems/` directory and lists all subdirectories
+- Each subdirectory name becomes a system hostname (e.g., `artemision`, `palatine-hill`)
+
+**Stage 2: Parameter Loading** (`genSystems` reads `default.nix`)
+
+- For each discovered system, `genSystems` imports `systems/<hostname>/default.nix`
+- This file exports parameters for `constructSystem` like:
+- `users = [ "alice" ]` — which users to create
+- `home = true` — enable home-manager
+- `sops = true` — enable secret decryption
+- `server = true/false` — machine role
+- `modules = [ ... ]` — additional system-specific modules
+
+**Stage 3: Assembly** (`constructSystem` assembles the full config)
+
+- Loads essential system files: `hardware.nix`, `configuration.nix`
+- Auto-imports all `.nix` files from `modules/` directory via `lib.adev.fileList`
+- Conditionally loads home-manager, SOPS, and user configs based on parameters
+- Merges everything into a complete NixOS system configuration
+
+### Key Functions in lib/systems.nix
+
+| Function | Purpose | Called By |
+|----------|---------|-----------|
+| `genSystems` | Scans `systems/` directory and creates configs for each subdirectory | `flake.nix` |
+| `constructSystem` | Assembles a single NixOS system with all modules and configs | `genSystems` |
+| `genHome` | Imports home-manager configs for specified users | `constructSystem` |
+| `genSops` | Imports SOPS-encrypted secrets for users | `constructSystem` |
+| `genUsers` | Imports user account configs from `users/<username>/` | `constructSystem` |
+| `genHostName` | Creates hostname attribute set | `constructSystem` |
+| `genWrapper` | Conditionally applies generator functions | `constructSystem` |
+
+### Special Arguments Passed to All Configs
+
+These are available in `configuration.nix`, `hardware.nix`, and all modules:
+
+```nix
+{ config, pkgs, lib, inputs, outputs, server, system, ... }:
+```
+
+- `config` — NixOS configuration options
+- `pkgs` — Nix packages (nixpkgs)
+- `lib` — Nix library functions (extended with `lib.adev`)
+- `inputs` — Flake inputs (nixpkgs, home-manager, sops-nix, etc.)
+- `outputs` — Flake outputs (for Hydra and other tools)
+- `server` — Boolean: true for servers, false for desktops
+- `system` — System architecture string (e.g., `"x86_64-linux"`)
+
+## Adding a New NixOS System
+
+### Step 1: Create the Directory Structure
+
+```bash
+mkdir -p systems/<new-hostname>
+cd systems/<new-hostname>
+```
+
+### Step 2: Create `default.nix` (System Parameters)
+
+This file is automatically discovered and loaded by `genSystems`. It exports the parameters passed to `constructSystem`.
+
+**Minimal example:**
+
+```nix
+{ inputs }:
+{
+  # Required: List of users to create (must have entries in users/ directory)
+  users = [ "alice" ];
+
+  # Optional: Enable home-manager (default: true)
+  home = true;
+
+  # Optional: Enable SOPS secrets (default: true)
+  sops = true;
+
+  # Optional: Is this a server? Used to conditionally enable server features
+  server = false;
+
+  # Optional: System architecture (default: "x86_64-linux")
+  system = "x86_64-linux";
+
+  # Optional: System-specific modules (in addition to global modules/)
+  modules = [
+    # ./custom-service.nix
+  ];
+}
+```
+
+**See `systems/palatine-hill/default.nix` for a complex example with all options.**
+
+### Step 3: Create `hardware.nix` (Hardware Configuration)
+
+Generate this via:
+
+```bash
+sudo nixos-generate-config --show-hardware-config > systems/<new-hostname>/hardware.nix
+```
+
+This file typically includes:
+
+- Boot configuration and bootloader
+- Filesystem mounts and ZFS/LVM settings
+- Hardware support (CPU, GPU, network drivers)
+- Device-specific kernel modules
+
+### Step 4: Create `configuration.nix` (System Configuration)
+
+This is the main NixOS configuration file. Structure:
+
+```nix
+{ config, pkgs, lib, inputs, server, system, ... }:
+{
+  # System hostname (usually matches directory name)
+  networking.hostName = "new-hostname";
+
+  # Desktop/desktop specific config
+  services.xserver.enable = !server;
+
+  # System packages
+  environment.systemPackages = with pkgs; [
+    # ...
+  ];
+
+  # Services to enable
+  services.openssh.enable = server;
+
+  # System-specific settings override global defaults
+  boot.kernelParams = [ "nomodeset" ];
+}
+```
+
+### Step 5: Add Optional Secrets
+
+If the system has sensitive data:
+
+```bash
+# Create and encrypt secrets file
+sops systems/<new-hostname>/secrets.yaml
+
+# This will be automatically loaded by genSops if sops = true
+```
+
+### Step 6: Add Optional System-Specific Modules
+
+For system-specific functionality that shouldn't be global, create separate `.nix` files in the system directory:
+
+```text
+systems/<new-hostname>/
+├── configuration.nix       # Main config
+├── default.nix
+├── hardware.nix
+├── secrets.yaml            # (optional)
+├── custom-service.nix      # (optional) System-specific modules
+├── networking.nix          # (optional)
+└── graphics.nix            # (optional)
+```
+
+Reference these in `default.nix`:
+
+```nix
+{ inputs }:
+{
+  users = [ "alice" ];
+  modules = [
+    ./custom-service.nix
+    ./networking.nix
+    ./graphics.nix
+  ];
+}
+```
+
+### Step 7: Deploy the New System
+
+The system is now automatically registered! Deploy with:
+
+```bash
+# Build the new system
+nix build .#<new-hostname>
+
+# Or if you want to switch immediately
+nh os switch
+```
+
+## Adding a Global Module to modules/
+
+Global modules are automatically imported into all systems. No registration needed.
+
+### Create a Module File
+
+Add a new `.nix` file to the `modules/` directory. Example: `modules/my-service.nix`
+
+### Module Structure
+
+```nix
+{ config, pkgs, lib, inputs, server, ... }:
+{
+  # Define configuration options for this module
+  options.myService = {
+    enable = lib.mkEnableOption "my service";
+    port = lib.mkOption {
+      type = lib.types.int;
+      default = 3000;
+      description = "Port for the service";
+    };
+  };
+
+  # Actual configuration (conditional on enable option)
+  config = lib.mkIf config.myService.enable {
+    environment.systemPackages = [ pkgs.my-service ];
+
+    systemd.services.my-service = {
+      description = "My Service";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        ExecStart = "${pkgs.my-service}/bin/my-service";
+        Restart = "always";
+      };
+    };
+  };
+}
+```
+
+### Using mkIf, mkDefault, and mkForce
+
+- **`mkIf`** — Conditionally apply config based on a boolean
+
+  ```nix
+  config = lib.mkIf config.myService.enable { ... };
+  ```
+
+- **`mkDefault`** — Provide a default value that can be overridden
+
+  ```nix
+  boot.kernelParams = lib.mkDefault [ "quiet" ];
+  ```
+
+- **`mkForce`** — Force a value, preventing other modules from overriding
+
+  ```nix
+  services.openssh.enable = lib.mkForce true;
+  ```
+
+- **`mkEnableOption`** — Define an `enable` option with standard description
+
+  ```nix
+  options.myService.enable = lib.mkEnableOption "my service";
+  ```
+
+### Disable a Global Module for a Specific System
+
+To disable a module for one system, override it in that system's `configuration.nix`:
+
+```nix
+{ config, lib, ... }:
+{
+  # Disable the module entirely
+  myService.enable = false;
+
+  # Or override specific options
+  services.openssh.port = 2222;
+}
+```
+
+### Module Loading Order in constructSystem
+
+Modules are applied in this order (later modules override earlier ones):
+
+1. `inputs.nixos-modules.nixosModule` (SuperSandro2000's convenience functions)
+1. `inputs.nix-index-database.nixosModules.nix-index`
+1. Hostname attribute from `genHostName`
+1. `hardware.nix` (hardware-specific config)
+1. `configuration.nix` (main system config)
+1. **System-specific modules** from `modules` parameter in `default.nix` (e.g., custom-service.nix)
+1. **All `.nix` files from global `modules/` directory** (features enabled across all systems)
+1. SOPS module (if `sops = true`)
+1. Home-manager module (if `home = true`)
+1. User configurations (if `users = [...]` and `home = true`)
+
+Important: Global modules (step 7) are applied after system-specific configs, so they can't override those values unless using `mkForce`. System-specific modules take precedence over global ones.
+
+## Common Tasks
+
+### Enable a Feature Across All Systems
+
+1. Create `modules/my-feature.nix` with `options.myFeature.enable`
+1. Set the feature enabled in `configuration.nix` of systems that need it:
+
+   ```nix
+   myFeature.enable = true;
+   ```
+
+1. Or enable globally and disable selectively:
+
+   ```nix
+   # In modules/my-feature.nix
+   config = lib.mkIf config.myFeature.enable {
+     # ...enabled by default
+   };
+
+   # In a system's configuration.nix
+   myFeature.enable = false;  # Disable just for this system
+   ```
+
+### Add a New User to the System
+
+1. Create user config: `users/<username>/default.nix` and `users/<username>/home.nix`
+1. Update system's `default.nix`:
+
+   ```nix
+   users = [ "alice" "newuser" ];
+   ```
+
+1. Create secrets: `sops users/<username>/secrets.yaml`
+1. Redeploy: `nh os switch`
+
+### Override a Module's Default Behavior
+
+In any system's `configuration.nix`:
+
+```nix
+{
+  # Disable a service that's enabled by default in a module
+  services.openssh.enable = false;
+
+  # Override module options
+  boot.kernelParams = [ "nomodeset" ];
+
+  # Add to existing lists
+  environment.systemPackages = [ pkgs.custom-tool ];
+}
+```
+
+### Check Which Modules Are Loaded
+
+```bash
+# List all module paths being loaded
+nix eval .#nixosConfigurations.<hostname>.options --json | jq keys | head -20
+
+# Evaluate a specific config value
+nix eval .#nixosConfigurations.<hostname>.config.services.openssh.enable
+```
+
+### Validate Configuration Before Deploying
+
+```bash
+# Check syntax and evaluate
+nix flake check
+
+# Build without switching
+nix build .#<hostname>
+
+# Preview what would change
+nix build .#<hostname> && nix-diff /run/current-system ./result
+```
+
+## Secrets Management
+
+SOPS (Secrets Operations) manages sensitive data like passwords and API keys. This repository uses age encryption with SOPS to encrypt secrets per system and per user.
+
+### Directory Structure
+
+Secrets are stored alongside their respective configs:
+
+```text
+systems/<hostname>/secrets.yaml         # System-wide secrets
+users/<username>/secrets.yaml           # User-specific secrets
+```
+
+### Creating and Editing Secrets
+
+**Create or edit a secrets file:**
+
+```bash
+# For a system
+sops systems/<hostname>/secrets.yaml
+
+# For a user
+sops users/<username>/secrets.yaml
+```
+
+SOPS will open your `$EDITOR` with decrypted content. When you save and exit, it automatically re-encrypts the file.
+
+**Example secrets structure for a system:**
+
+```yaml
+# systems/palatine-hill/secrets.yaml
+acme:
+  email: user@example.com
+  api_token: "secret-token-here"
+postgresql:
+  password: "db-password"
+```
+
+**Example secrets for a user:**
+
+```yaml
+# users/alice/secrets.yaml
+# The user password is required
+user-password: "hashed-password-here"
+```
+
+### Accessing Secrets in Configuration
+
+Secrets are made available via `config.sops.secrets` in modules and configurations:
+
+```nix
+# In a module or configuration.nix
+{ config, lib, ... }:
+{
+  # Reference a secret
+  services.postgresql.initialScript = ''
+    CREATE USER app WITH PASSWORD '${config.sops.secrets."postgresql/password".path}';
+  '';
+
+  # Or use the secret directly if it supports content
+  systemd.services.my-app.serviceConfig = {
+    EnvironmentFiles = [ config.sops.secrets."api-token".path ];
+  };
+}
+```
+
+### Merging Secrets Files
+
+When multiple systems or users modify secrets, use the sops-mergetool to resolve conflicts:
+
+```bash
+# Set up mergetool
+git config merge.sopsmergetool.command "sops-mergetool-wrapper $BASE $CURRENT $OTHER $MERGED"
+
+# Then during a merge conflict
+git merge branch-name
+
+# Git will use sops-mergetool to intelligently merge encrypted files
+```
+
+The repository includes helper scripts: `utils/sops-mergetool.sh` and `utils/sops-mergetool-new.sh`
+
+### Adding a New Machine's Age Key
+
+When adding a new system (`systems/<new-hostname>/`), you need to register its age encryption key:
+
+1. Generate the key on the target machine (if using existing deployment) or during initial setup
+1. Add the public key to `.sops.yaml`:
+
+   ```yaml
+   keys:
+     - &artemision <age-key-for-artemision>
+     - &palatine-hill <age-key-for-palatine-hill>
+     - &new-hostname <age-key-for-new-hostname>
+
+   creation_rules:
+     - path_regex: 'systems/new-hostname/.*'
+       key_groups:
+         - age: *new-hostname
+   ```
+
+1. Re-encrypt existing secrets with the new key:
+
+   ```bash
+   sops updatekeys systems/new-hostname/secrets.yaml
+   ```
+
+## Real-World Examples
+
+### Example 1: Adding a Feature to All Desktop Machines
+
+Using `artemision` (desktop) as an example:
+
+**Create `modules/gpu-optimization.nix`:**
+
+```nix
+{ config, lib, server, ... }:
+{
+  options.gpu.enable = lib.mkEnableOption "GPU optimization";
+
+  config = lib.mkIf (config.gpu.enable && !server) {
+    # Desktop-only GPU settings
+    hardware.nvidia.open = true;
+    services.xserver.videoDrivers = [ "nvidia" ];
+  };
+}
+```
+
+**Enable in `systems/artemision/configuration.nix`:**
+
+```nix
+{
+  gpu.enable = true;
+}
+```
+
+**Deploy:**
+
+```bash
+nix build .#artemision
+nh os switch
+```
+
+### Example 2: Adding a Server Service to One System
+
+Using `palatine-hill` (server) as an example:
+
+**Create `systems/palatine-hill/postgresql-backup.nix`:**
+
+```nix
+{ config, pkgs, lib, ... }:
+{
+  systemd.timers.postgres-backup = {
+    description = "PostgreSQL daily backup";
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnCalendar = "03:00";
+      Persistent = true;
+    };
+  };
+
+  systemd.services.postgres-backup = {
+    description = "Backup PostgreSQL database";
+    script = ''
+      ${pkgs.postgresql}/bin/pg_dumpall | gzip > /backups/postgres-$(date +%Y%m%d).sql.gz
+    '';
+  };
+}
+```
+
+**Reference in `systems/palatine-hill/default.nix`:**
+
+```nix
+{ inputs }:
+{
+  users = [ "alice" ];
+  server = true;
+  modules = [
+    ./postgresql-backup.nix
+  ];
+}
+```
+
+**Deploy:**
+
+```bash
+nix build .#palatine-hill
+```
+
+### Example 3: Disabling a Global Module for a Specific System
+
+To disable `modules/steam.nix` on a server (`palatine-hill`) while it stays enabled on desktops:
+
+**In `systems/palatine-hill/configuration.nix`:**
+
+```nix
+{
+  steam.enable = false;  # Override the module option
+}
+```
+
+The module in `modules/steam.nix` should use:
+
+```nix
+config = lib.mkIf config.steam.enable {
+  # steam configuration only if enabled
+};
+```
+
+## Debugging & Validation
+
+### Check Module Evaluation
+
+```bash
+# See which modules are loaded for a system
+nix eval .#nixosConfigurations.artemision.config.environment.systemPackages --no-allocator
+
+# Validate module option exists
+nix eval .#nixosConfigurations.artemision.options.myService.enable
+```
+
+### Debug SOPS Secrets
+
+```bash
+# View encrypted secrets (you must have the age key)
+sops systems/palatine-hill/secrets.yaml
+
+# Check if SOPS integration is working
+nix eval .#nixosConfigurations.palatine-hill.config.sops.secrets --json
+```
+
+### Test Configuration Without Deploying
+
+```bash
+# Evaluate the entire configuration
+nix eval .#nixosConfigurations.artemision --no-allocator
+
+# Build (but don't activate)
+nix build .#artemision
+
+# Check for errors in the derivation
+nix path-info ./result
+```

.vscode/extensions.json

@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "davidanson.vscode-markdownlint"
+    ]
+}

checks.nix

@@ -56,7 +56,7 @@ forEachSystem (
               #!/usr/bin/env ruby
 
               all
-              rule 'MD013', :tables => false
+              rule 'MD013', :tables => false, :line_length => 220
             '').outPath;
         };
 

users/default.nix

@@ -28,6 +28,8 @@
     "plugdev"
     "uaccess"
     "ydotool"
+    "video"
+    "render"
   ]
   ++ groups;
 }