add Claude Code integration

- Add CLAUDE.md with comprehensive repository documentation
- Configure claude-code package in editors feature
- Add MCP nixos integration for better Nix ecosystem support
- Include Claude settings with co-authored-by disabled
- Update unfree predicate for proprietary AI tools

CLAUDE.md

@@ -0,0 +1,67 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Repository Overview
+
+This is a NixOS and Home Manager configuration using flakes architecture, managing two hosts (`fuchsia` and `viridian`) with declarative system and user configurations.
+
+## Common Development Commands
+
+### System Management
+- `just build <hostname>` - Build system configuration without switching
+- `just switch <hostname>` - Build and switch to new system configuration (requires sudo)
+- `just deploy <hostname>` - Deploy configuration to remote host
+
+### Nix Operations
+- `nix build` - Build packages defined in flake
+- `nix fmt` - Format Nix files using alejandra formatter
+- `nix flake update` - Update all flake inputs
+- `nixos-rebuild build --flake .#<hostname>` - Build specific host configuration
+- `home-manager switch --flake .#sajenim@<hostname>` - Switch Home Manager configuration
+
+### Development Environment
+- `nix develop` - Enter development shell with `just` available
+- `nix-shell` - Legacy shell environment
+
+## Architecture
+
+### Flake Structure
+- **Main flake inputs**: nixpkgs (stable/unstable), home-manager, agenix/agenix-rekey, external configs
+- **Outputs**: NixOS configurations, Home Manager configurations, packages, overlays, modules
+- **Host configurations**: `fuchsia` (desktop) and `viridian` (server)
+
+### Directory Organization
+- `nixos/` - System-level configurations
+  - `common/global/` - Shared system configuration (nix settings, secrets, SSH)
+  - `common/users/` - User account definitions
+  - `common/optional/` - Optional system features (yubikey, persistence)
+  - `<hostname>/` - Host-specific configurations and services
+- `home-manager/` - User environment configurations
+  - `sajenim/features/` - Modular user features (cli, desktop, editors, games)
+  - `sajenim/global/` - Base user configuration
+- `modules/` - Custom NixOS and Home Manager modules
+- `pkgs/` - Custom package definitions
+- `overlays/` - Package modifications and patches
+
+### Key Features
+- **Ephemeral BTRFS**: Root filesystem is recreated on boot with opt-in persistence
+- **Secret Management**: agenix for encrypted secrets, rekeyed with YubiKey
+- **Modular Design**: Features organized as importable modules
+- **Custom Packages**: External configurations (nixvim, xmonad-config) as flake inputs
+
+### Host Profiles
+- **fuchsia**: Desktop workstation with X11, gaming, development tools
+- **viridian**: Server with multimedia stack (*arr services), web services, containers
+
+### Service Management
+- Services defined in `nixos/<hostname>/services/` and `nixos/<hostname>/multimedia/`
+- Docker containers managed through `virtualisation.oci-containers`
+- Traefik reverse proxy with automatic HTTPS
+- Borgbackup for persistent data
+
+### Configuration Patterns
+- All `.nix` files use `default.nix` for module entry points
+- Configurations use explicit imports for modular composition
+- Host-specific and shared configurations clearly separated
+- External dependencies managed through flake inputs

flake.lock

@@ -165,11 +165,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1743550720,
-        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
+        "lastModified": 1756770412,
+        "narHash": "sha256-+uWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
+        "rev": "4524271976b625a4a605beefd893f270620fd751",
         "type": "github"
       },
       "original": {
@@ -187,11 +187,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1743550720,
-        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
+        "lastModified": 1756770412,
+        "narHash": "sha256-+uWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
+        "rev": "4524271976b625a4a605beefd893f270620fd751",
         "type": "github"
       },
       "original": {
@@ -297,7 +297,7 @@
     },
     "flake-utils_5": {
       "inputs": {
-        "systems": "systems_6"
+        "systems": "systems_7"
       },
       "locked": {
         "lastModified": 1731533236,
@@ -315,7 +315,7 @@
     },
     "flake-utils_6": {
       "inputs": {
-        "systems": "systems_7"
+        "systems": "systems_8"
       },
       "locked": {
         "lastModified": 1726560853,
@@ -472,16 +472,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1729958008,
-        "narHash": "sha256-EiOq8jF4Z/zQe0QYVc3+qSKxRK//CFHMB84aYrYGwEs=",
+        "lastModified": 1754860581,
+        "narHash": "sha256-EM0IE63OHxXCOpDHXaTyHIOk2cNvMCGPqLt/IdtVxgk=",
         "owner": "NuschtOS",
         "repo": "ixx",
-        "rev": "9fd01aad037f345350eab2cd45e1946cc66da4eb",
+        "rev": "babfe85a876162c4acc9ab6fb4483df88fa1f281",
         "type": "github"
       },
       "original": {
         "owner": "NuschtOS",
-        "ref": "v0.0.6",
+        "ref": "v0.1.1",
         "repo": "ixx",
         "type": "github"
       }
@@ -581,11 +581,11 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1743296961,
-        "narHash": "sha256-b1EdN3cULCqtorQ4QeWgLMrd5ZGOjLSLemfa00heasc=",
+        "lastModified": 1754788789,
+        "narHash": "sha256-x2rJ+Ovzq0sCMpgfgGaaqgBSwY+LST+WbZ6TytnT9Rk=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "e4822aea2a6d1cdd36653c134cacfd64c97ff4fa",
+        "rev": "a73b9c743612e4244d865a2fdee11865283c04e6",
         "type": "github"
       },
       "original": {
@@ -691,11 +691,11 @@
     },
     "nixpkgs_6": {
       "locked": {
-        "lastModified": 1744098102,
-        "narHash": "sha256-tzCdyIJj9AjysC3OuKA+tMD/kDEDAF9mICPDU7ix0JA=",
+        "lastModified": 1758690382,
+        "narHash": "sha256-NY3kSorgqE5LMm1LqNwGne3ZLMF2/ILgLpFr1fS4X3o=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c8cd81426f45942bb2906d5ed2fe21d2f19d95b7",
+        "rev": "e643668fd71b949c53f8626614b21ff71a07379d",
         "type": "github"
       },
       "original": {
@@ -707,11 +707,11 @@
     },
     "nixpkgs_7": {
       "locked": {
-        "lastModified": 1744157173,
-        "narHash": "sha256-bWSjxDwq7iVePrhmA7tY2dyMWHuNJo8knkO4y+q4ZkY=",
+        "lastModified": 1758763312,
+        "narHash": "sha256-puBMviZhYlqOdUUgEmMVJpXqC/ToEqSvkyZ30qQ09xM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6a39c6e495eefabc935d8ddf66aa45d85b85fa3f",
+        "rev": "e57b3b16ad8758fd681511a078f35c416a8cc939",
         "type": "github"
       },
       "original": {
@@ -760,11 +760,11 @@
         "nixvim": "nixvim_2"
       },
       "locked": {
-        "lastModified": 1758770467,
-        "narHash": "sha256-VceMbbBOCUQfCgBM1TtHIrDSgeI9fakG6T6KZb7p0PY=",
+        "lastModified": 1758995705,
+        "narHash": "sha256-ix/VUpm2MIAr16yMmUeB/B8tdv7ximran6zZa1OlZvg=",
         "ref": "refs/heads/master",
-        "rev": "48b93a848e5132c007cfbd0075f264a7719d75a8",
-        "revCount": 101,
+        "rev": "939e8a45f5f9c3ab32f071a559bca6eceead0d53",
+        "revCount": 104,
         "type": "git",
         "url": "https://git.sajenim.dev/jasmine/nixvim-config.git"
       },
@@ -777,14 +777,15 @@
       "inputs": {
         "flake-parts": "flake-parts_3",
         "nixpkgs": "nixpkgs_7",
-        "nuschtosSearch": "nuschtosSearch"
+        "nuschtosSearch": "nuschtosSearch",
+        "systems": "systems_6"
       },
       "locked": {
-        "lastModified": 1744272522,
-        "narHash": "sha256-cFuxYOLp/6L0eu5wX7xmaF4VhqEm/aT08awzEHGMMQE=",
+        "lastModified": 1758931855,
+        "narHash": "sha256-jTmbWlOxsy9dDP3UdCB6jEO63FtkM3dQG2FOq0b4foI=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "33c3f98fdc9a62183ec7d535bf910e04f141284b",
+        "rev": "e0f1e4ae4bb8762b7c51c3a514ca19664fad9c3b",
         "type": "github"
       },
       "original": {
@@ -804,11 +805,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1743683223,
-        "narHash": "sha256-LdXtHFvhEC3S64dphap1pkkzwjErbW65eH1VRerCUT0=",
+        "lastModified": 1758662783,
+        "narHash": "sha256-igrxT+/MnmcftPOHEb+XDwAMq3Xg1Xy7kVYQaHhPlAg=",
         "owner": "NuschtOS",
         "repo": "search",
-        "rev": "56a49ffef2908dad1e9a8adef1f18802bc760962",
+        "rev": "7d4c0fc4ffe3bd64e5630417162e9e04e64b27a4",
         "type": "github"
       },
       "original": {
@@ -822,7 +823,7 @@
         "flake-utils": "flake-utils_6",
         "nix-github-actions": "nix-github-actions",
         "nixpkgs": "nixpkgs_9",
-        "systems": "systems_8",
+        "systems": "systems_9",
         "treefmt-nix": "treefmt-nix_2"
       },
       "locked": {
@@ -1018,6 +1019,21 @@
         "type": "github"
       }
     },
+    "systems_9": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "treefmt-nix": {
       "inputs": {
         "nixpkgs": [

home-manager/sajenim/features/editors/claude-settings.json

@@ -0,0 +1,4 @@
+{
+  "outputStyle": "Explanatory",
+  "includeCoAuthoredBy": false
+}

home-manager/sajenim/features/editors/default.nix

@@ -14,6 +14,10 @@
       # Typesetting
       pandoc
       texliveFull
+
+      # AI-powered coding assistant and CLI tool
+      claude-code
+      unstable.mcp-nixos
     ]
     ++ [
       # Our personal neovim configuration.
@@ -27,13 +31,17 @@
       ])
     ]); # https://github.com/theCapypara/nix-jetbrains-plugins
 
-  # Allow unfree packages for jetbrains IDEs
+  # Allow unfree packages for proprietary software
   nixpkgs.config.allowUnfreePredicate = pkg:
     builtins.elem (lib.getName pkg) [
+      "claude-code"
       "idea-ultimate"
       "idea-ultimate-with-plugins" 
     ];
 
-  # Copy our vim configuration file for jetbrains IDEs
-  home.file.".ideavimrc".source = ./ideavimrc;
+  # Copy our configuration files to home directory
+  home.file = {
+    ".ideavimrc".source = ./ideavimrc;
+    ".claude/settings.json".source = ./claude-settings.json;
+  };
 }

nixos/fuchsia/services/ollama/default.nix

@@ -26,7 +26,7 @@
     # Location to store models
     models = "/srv/ollama/models";
 
-    # Increase context window for aider
+    # Increase context window
     environmentVariables = {
       OLLAMA_CONTEXT_LENGTH = "8192";
     };