Interim fix, no gpg key

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

AGENTS.md

@@ -22,7 +22,7 @@ nix build .#formatter.x86_64-linux
 ### Deploying
 ```bash
 # Rebuild the azos environment for lauretta (this machine) — use this when asked to "rebuild"
-sudo nixos-rebuild switch --flake '.?submodules=1#lauretta'
+azos-lauretta-update
 nix flake update --flake '.?submodules=1'                    # Update all inputs
 nix flake lock --flake '.?submodules=1' --update-input X    # Update specific input
 ```
@@ -70,76 +70,111 @@ emacsclient -c -e '(switch-to-buffer (get-buffer-create "test"))'
 emacsclient -e '(message "hello")'
 ```
 
-## Code Style Guidelines
+## Repository Structure
 
-### File Organization
-- **Home-manager modules**: `modules/home-manager/<name>.nix`
-- **NixOS modules**: `modules/nixos/<name>.nix`
-- **Imports**: All modules in `modules/home-manager/default.nix` and `modules/nixos/default.nix` (alphabetical order)
-- **Home config**: `home-manager/home.nix` - main home-manager user config
-- **Custom packages**: `pkgs/` - custom package definitions
-- **Overlays**: `overlays/` - package overlays (addpkgs, modifications, unstable-packages)
+```
+azos/
+├── flake.nix                  # Main flake
+├── home-manager/home.nix      # Home-manager entry point; manually imports all modules
+├── _machines/                 # Per-machine NixOS configs (pass suiteModules as specialArgs)
+├── nixos/                     # NixOS system configs (configuration.nix, configuration-vm.nix, etc.)
+├── features/                  # Machine-specific home-manager features (auto-discovered)
+├── overlays/                  # Package overlays
+├── shells/                    # Dev shells
+└── azos-core/                 # Shared feature library (git submodule)
+    ├── flake.nix
+    ├── features/              # Shared/reusable features (auto-discovered)
+    ├── overlays/              # Core overlays
+    └── _lib/                  # Module schema helpers
+```
+
+Features are auto-discovered by `import-tree` — no central imports file. Each feature's
+`default.nix` registers itself via `config.flake.modules.homeManager.<name>`. Modules are
+then explicitly imported in `home-manager/home.nix` via `suiteModules.homeManager.<name>`.
+
+**Where to put a new feature:**
+- Shared / reusable across machines → `azos-core/features/<name>/default.nix`
+- Machine-specific → `azos/features/<name>/default.nix`
+
+## Code Style Guidelines
 
 ### Nix Module Template
 
+All features follow this flake-parts registration pattern:
+
 ```nix
-{
+{...}: {
+  config.flake.modules.homeManager.<name> = {
     lib,
     config,
     pkgs,
     ...
-}: let
-  isEnabled =
-    config.azos.<module-name>.enable;
-in {
-  options.azos.<module-name>.enable = lib.mkOption {
-    default = true;
+  }: {
+    options.azos.<name>.enable = lib.mkOption {
+      default = false;
       example = true;
       type = lib.types.bool;
     };
 
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [ pkg1 pkg2 ];
+    config = lib.mkIf config.azos.<name>.enable {
+      home.packages = with pkgs; [pkg1 pkg2];
+    };
   };
 }
 ```
 
 ### Naming Conventions
-- Option paths: `config.azos.<module-name>.<option>`
-- Enable option: `enable` (bool), default `true`
-- Module names: kebab-case (`libreoffice.nix`, `git-config.nix`)
-- Option names: may differ from filename (e.g., `git.nix` uses `azos.git-config`)
-- Variables: kebab-case (`isEnabled`)
+- Option paths: `azos.<module-name>.<option>`
+- Module names: kebab-case (`git-config`, `claude-memory`)
+- Feature directories: kebab-case, one `default.nix` per feature
+- Variables: kebab-case
 
 ### Formatting
 - Indentation: 2 spaces
-- Let bindings: multi-line with `isEnabled` on its own line
-- Packages: Use `with pkgs; [ ... ]` syntax
+- Packages: `with pkgs; [pkg1 pkg2]` (no trailing semicolon inside list)
 
 ### Imports
-- Always include `{...}` for module args
-- Standard args: `lib, config, pkgs, ...`
-- NixOS config args: `inputs, outputs, lib, config, pkgs, ...`
-- Use `./relative/path.nix` for local imports
+- Always include `{...}` for the outer module args
+- Inner module args: `lib, config, pkgs, ...`
 
 ### Option Patterns
-- Boolean enable: `lib.mkOption { default = true; example = true; type = lib.types.bool; }`
-- Conditional config: `lib.mkIf isEnabled { ... }`
-- User-overridable: `lib.mkDefault`
+- Boolean enable: `lib.mkOption { default = false; example = true; type = lib.types.bool; }`
+- Conditional config: `lib.mkIf config.azos.<name>.enable { ... }`
+- Auto-enable a dependency: `azos.<dep>.enable = lib.mkDefault true;`
 - Force value: `lib.mkForce` (sparingly)
 
+### Extensible Options
+For options that multiple modules should be able to contribute to, use attrset options:
+
+```nix
+options.azos.<name>.things = lib.mkOption {
+  default = {};
+  type = lib.types.attrsOf lib.types.path;  # or lines, str, etc.
+};
+```
+
+Any module can then add entries without modifying the owning feature. Examples in use:
+- `azos.claude.globalSkills` — attrset of skill name → markdown file path
+- `azos.claude.globalMdSections` — attrset of key → markdown string (merged into `~/.claude/CLAUDE.md`)
+
 ### Home-Manager vs NixOS
 - Home-manager: `home.packages`, `home.file`, `programs.<program>`
 - NixOS: `config.services`, `environment.systemPackages`
 
+### Deploying Files
+- Static file: `home.file."dest".source = ./file;`
+- Generated text: `home.file."dest".text = "...";`
+- Runtime script (e.g. merging JSON at activation): `home.activation.<name> = lib.hm.dag.entryAfter ["writeBoundary"] ''...'';`
+
 ### Suites System
-Modules are organized into suites (defined in `azos-core/`):
-- `azos.suites.base` - Base packages and config
-- `azos.suites.editor` - Editor tools
-- `azos.suites.dev` - Development tools
-- `azos.suites.station` - Desktop applications
-- `azos.suites.exwm` - EXWM window manager
-- Enable in `home-manager/home.nix` with `azos.suites.<name>.enable = true;`
+Top-level suites group related features (defined in `azos-core/`):
+- `azos.suites.base` — base packages and config
+- `azos.suites.editor` — editor tools
+- `azos.suites.dev` — development tools
+- `azos.suites.station` — desktop applications
+- `azos.suites.exwm` — EXWM window manager
+
+The machine suite (`azos.suites.lauretta`) enables the relevant suites for this machine.
 
 ### Specializations
 NixOS supports specializations for alternative configurations:
@@ -158,33 +193,62 @@ specialisation = {
 
 ## Adding New Modules
 
-1. Create file in `modules/home-manager/` or `modules/nixos/`
-2. Add import to `modules/<type>/default.nix` (alphabetical)
-3. Use module template above
+1. Create `features/<name>/default.nix` (machine-specific) or `azos-core/features/<name>/default.nix` (shared)
+2. Use the module template above
+3. Add `suiteModules.homeManager.<name>` to the imports list in `home-manager/home.nix`
 4. Run `nix fmt`
 
+> **Submodule gotcha**: New files in `azos-core/` must be `git add`-ed inside the submodule
+> before `nix build` will see them — Nix flakes only evaluate git-tracked files.
+> ```bash
+> cd azos-core && git add features/<name>/
+> ```
+
+## Claude Integration
+
+Claude Code is integrated with this environment via several azos-core features:
+
+| Feature | Option | What it does |
+|---------|--------|--------------|
+| `azos-core/features/claude-memory` | `azos.claude-memory.enable` | Registers org-roam-mcp as a global MCP server in `~/.claude.json` |
+| `azos-core/features/claude-skills` | `azos.claude-skills.enable` | Deploys skills to `~/.claude/commands/` and content to `~/.claude/CLAUDE.md` |
+| `azos/features/claude` | `azos.claude.enable` | Installs claude-code, auto-enables the above two |
+
+### Adding Claude skills or standing instructions
+From any module — no need to touch azos-core:
+```nix
+azos.claude.globalSkills.my-skill = ./skills/my-skill.md;
+azos.claude.globalMdSections.my-rule = ''
+  # My Rule
+  Always do X when Y.
+'';
+```
+See `azos-core/features/claude-skills/README.md` for full documentation.
+
 ## Key Files
 
 | File | Purpose |
 |------|---------|
-| `flake.nix` | Main flake, defines systems, overlays |
-| `modules/home-manager/default.nix` | Home-manager imports |
-| `modules/nixos/default.nix` | NixOS imports |
-| `home-manager/home.nix` | User home-manager config, enables suites |
-| `nixos/configuration.nix` | Lauretta laptop config |
+| `flake.nix` | Main flake, defines systems and overlays |
+| `home-manager/home.nix` | Home-manager entry point, imports all modules |
+| `_machines/lauretta.nix` | Lauretta machine config, passes `suiteModules` as specialArgs |
+| `nixos/configuration.nix` | Lauretta NixOS system config |
 | `nixos/configuration-vm.nix` | Test VM config |
-| `overlays/` | Custom package overlays |
-| `pkgs/` | Custom packages |
-| `azos-core/` | Shared modules (submodule) |
+| `overlays/` | Package overlays |
+| `azos-core/` | Shared feature library (git submodule) |
+| `azos-core/features/` | Shared features (auto-discovered by import-tree) |
+| `features/` | Machine-specific features (auto-discovered by import-tree) |
+| `azos-core/features/editor/emacs/config.org` | Literate Emacs config |
+| `azos-core/features/claude-skills/README.md` | Claude skills extensibility docs |
 
 ## Common Tasks
 
-**Add system package**: Edit NixOS module, add to `environment.systemPackages = with pkgs; [ pkg ]`
+**Add system package**: Edit a NixOS feature, add to `environment.systemPackages = with pkgs; [ pkg ]`
 
-**Add home-manager package**: Edit module, add to `home.packages = with pkgs; [ pkg ]`
+**Add home-manager package**: Edit a feature's config block, add to `home.packages = with pkgs; [ pkg ]`
 
-**Add system service**: Edit NixOS module, add under `services.<service>`
+**Add system service**: Edit a NixOS feature, add under `services.<service>`
 
-**Add custom package**: Create file in `pkgs/`, add to `pkgs/default.nix`, use via overlay
+**Add custom package**: Add to `azos-core/overlays/` via `config.flake.overlayPkgs.<name>`, then use as `pkgs.<name>`
 
 **Access unstable packages**: Use `pkgs.unstable.<package>` (via unstable-packages overlay)

CLAUDE.md

@@ -0,0 +1 @@
+AGENTS.md

features/chess/default.nix

@@ -0,0 +1,33 @@
+{...}: {
+  config.flake.overlayPkgs.emacs-lichess = pkgs: let
+    epkgs = pkgs.emacs.pkgs;
+  in
+    epkgs.trivialBuild {
+      pname = "lichess";
+      version = "0.8";
+      src = pkgs.fetchFromGitHub {
+        owner = "tmythicator";
+        repo = "lichess.el";
+        rev = "1dd8a25ede7144c5d6be1f45f4ae3d07903783cd";
+        sha256 = "157l4crbz37x367m69sxwvnd1pd8cqa6w0lcvyyvs27cm021d2gr";
+      };
+    };
+
+  config.flake.modules.homeManager.chess = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: {
+    options.azos.chess.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+    };
+
+    config = lib.mkIf config.azos.chess.enable {
+      azos.emacs.pkgs = [pkgs.emacs-lichess];
+      azos.emacs.enabledSuites = ["lichess"];
+    };
+  };
+}

features/claude/default.nix

@@ -11,6 +11,8 @@
     };
     config = lib.mkIf config.azos.claude.enable {
       home.packages = with pkgs; [claude-code claude-agent-acp];
+      azos.claude-memory.enable = lib.mkDefault true;
+      azos.claude-skills.enable = lib.mkDefault true;
     };
   };
 }

features/git-config/default.nix

@@ -15,7 +15,7 @@
         enable = true;
         signing = {
           key = "6D17E295C70E2674";
-          signByDefault = true;
+          signByDefault = false;
         };
         settings = {
           credential.helper = "!pass-git-helper $@";

features/lauretta/emacs/config.org

@@ -14,6 +14,12 @@
 
 * Lauretta specific
 
+** Weather
+
+#+begin_src emacs-lisp
+(setq wttrin-default-cities '("Meitar, Israel"))
+#+end_src
+
 ** LLM
 
 #+begin_src emacs-lisp
@@ -31,8 +37,7 @@
 ** Agent Shell
 
 #+begin_src emacs-lisp
-(setq agent-shell-opencode-default-model-id "opencode/big-pickle")
-;; (setq agent-shell-preferred-agent-config (agent-shell-opencode-make-agent-config))
+(setq agent-shell-preferred-agent-config 'claude-code)
 #+end_src
 
 ** Headphones
@@ -317,6 +322,53 @@ With prefix ARG, prompt for a pattern then select from matches."
 (define-key azos/beacon/keymap (kbd "t") #'azos/beacon/tail-log)
 #+end_src
 
+** Roam Backup
+
+#+begin_src emacs-lisp
+(defun azos/roam/backup ()
+  "Commit and push ~/roam to the remote git repo."
+  (interactive)
+  (async-shell-command "roam-backup" "*roam-backup*"))
+
+(define-key azos/roam-keymap (kbd "B") #'azos/roam/backup)
+#+end_src
+
+** Printing
+
+#+begin_src emacs-lisp
+(defun azos/print-buffer (&optional arg)
+  "Print the current buffer.
+For image/PDF/doc buffers, sends the file path to lp directly.
+For text buffers, uses lpr-buffer.
+With C-u, interactively prompt for scaling, B&W, and orientation options."
+  (interactive "P")
+  (let* ((image-p (derived-mode-p 'image-mode 'pdf-view-mode 'doc-view-mode))
+         (scale (when arg (y-or-n-p "Fit to page? ")))
+         (bw    (when arg (y-or-n-p "Black and white? ")))
+         (landscape (when (and arg image-p) (y-or-n-p "Landscape? ")))
+         (lp-opts (concat
+                   (when scale " -o fit-to-page")
+                   (when bw " -o print-color-mode=monochrome")
+                   (when landscape " -o landscape"))))
+    (if image-p
+        (if buffer-file-name
+            (progn
+              (shell-command
+               (concat "lp" lp-opts " " (shell-quote-argument buffer-file-name)))
+              (message "Sent %s to printer%s%s%s."
+                       (file-name-nondirectory buffer-file-name)
+                       (if scale " [scaled]" "")
+                       (if bw " [B&W]" "")
+                       (if landscape " [landscape]" "")))
+          (error "Buffer has no associated file"))
+      (let ((lpr-switches
+             (append lpr-switches
+                     (when bw '("-o print-color-mode=monochrome")))))
+        (lpr-buffer)))))
+
+(define-key azos/global-minor-mode/open-keymap (kbd "P") #'azos/print-buffer)
+#+end_src
+
 * Provide
 
 #+begin_src emacs-lisp

features/printing/default.nix

@@ -0,0 +1,55 @@
+{...}: {
+  config.flake.modules.nixos.printing = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: let
+    webpFilter = pkgs.writeShellScript "webptopdf" ''
+      if [ $# -ge 6 ]; then
+        INPUT="$6"
+        TMPFILE=""
+      else
+        TMPFILE=$(mktemp /tmp/cups-webp-XXXXXX.webp)
+        cat > "$TMPFILE"
+        INPUT="$TMPFILE"
+      fi
+      TMPOUT=$(mktemp /tmp/cups-webp-XXXXXX.pdf)
+      ${pkgs.imagemagick}/bin/magick "$INPUT" "$TMPOUT"
+      cat "$TMPOUT"
+      rm -f "$TMPOUT"
+      [ -n "$TMPFILE" ] && rm -f "$TMPFILE"
+    '';
+
+    webpCupsMime = pkgs.runCommand "webp-cups-mime" {} ''
+      mkdir -p $out/lib/cups/filter $out/share/cups/mime
+      cp ${webpFilter} $out/lib/cups/filter/webptopdf
+      chmod +x $out/lib/cups/filter/webptopdf
+      echo 'image/webp webp string(0,"RIFF") string(8,"WEBP")' > $out/share/cups/mime/webp.types
+      echo 'image/webp application/pdf 0 webptopdf' > $out/share/cups/mime/webp.convs
+    '';
+  in {
+    options.azos.printing.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+    };
+
+    config = lib.mkIf config.azos.printing.enable {
+      services.printing = {
+        enable = true;
+        drivers = [pkgs.hplip webpCupsMime];
+      };
+
+      environment.systemPackages = [pkgs.hplip];
+
+      services.avahi = {
+        enable = true;
+        nssmdns4 = true;
+        openFirewall = true;
+      };
+
+      users.users.aner.extraGroups = ["lp"];
+    };
+  };
+}

features/qutebrowser/config.py

@@ -58,3 +58,5 @@ c.fonts.hints = "bold 13px 'LiberationMono'"
 #Set highdpi
 c.qt.highdpi = True
 c.zoom.default = 70
+
+c.qt.args = ['renderer-process-limit=6']

features/roam-backup/default.nix

@@ -0,0 +1,30 @@
+{...}: {
+  config.flake.modules.homeManager.roam-backup = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: {
+    options.azos.roam-backup.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+    };
+
+    config = lib.mkIf config.azos.roam-backup.enable {
+      home.packages = [
+        (pkgs.writeShellScriptBin "roam-backup" ''
+          set -e
+          cd "$HOME/roam"
+          git add -A
+          if git diff --cached --quiet; then
+            echo "Nothing to commit."
+          else
+            git commit -m "backup: $(date '+%Y-%m-%d %H:%M')"
+          fi
+          git push --set-upstream origin HEAD
+        '')
+      ];
+    };
+  };
+}

flake.lock

@@ -139,11 +139,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1779969295,
-        "narHash": "sha256-HwIJ3tOcwSMiV75L7KqJXciXR9UfT+d7rwOZMX7cTnA=",
+        "lastModified": 1781642113,
+        "narHash": "sha256-mAR7KTS9rjreTcXCNqfCbN96mnhJO8lDQq1vl7GviBQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "61e2c9659324181e0f0ed911958c536333b1d4f6",
+        "rev": "df4e0465717a2d34f05b8ccd967275aaf3ceaa01",
         "type": "github"
       },
       "original": {
@@ -202,12 +202,15 @@
       }
     },
     "nixos-hardware": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_4"
+      },
       "locked": {
-        "lastModified": 1779826373,
-        "narHash": "sha256-3sRzgLX86qV5NlhWUAufLmHwkyP03tmL3VdZIM13dEo=",
+        "lastModified": 1781622756,
+        "narHash": "sha256-JrPh4M6S7aPsEE9tOENuZrxC6o2szSLlK+t4+nLke9s=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "ef4efb84766a166c906bd55759574676bf91267c",
+        "rev": "08018c72174a4df5657f8d94178ac69fb9c243e5",
         "type": "github"
       },
       "original": {
@@ -263,11 +266,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1779560665,
-        "narHash": "sha256-tpyBcxPpcQb8ukyNF7DoCwfSY3VPsxHoYwj00Cayv5o=",
+        "lastModified": 1781577229,
+        "narHash": "sha256-lrp67w8AulE9Ks53n27I45ADSzbOCn4H+CNW1Ck8B+8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "64c08a7ca051951c8eae34e3e3cb1e202fe36786",
+        "rev": "567a49d1913ce81ac6e9582e3553dd90a955875f",
         "type": "github"
       },
       "original": {
@@ -311,11 +314,24 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1779877693,
-        "narHash": "sha256-NOF9NAREhxr50bbBfVcVOq+ArCMSoe8dP79Pk2uyARk=",
+        "lastModified": 1767892417,
+        "narHash": "sha256-8bW3q88CEg2u4hSP66Vf4lpbLonHz7hqDNBMcCY7E9U=",
+        "rev": "3497aa5c9457a9d88d71fa93a4a8368816fbeeba",
+        "type": "tarball",
+        "url": "https://releases.nixos.org/nixos/unstable/nixos-26.05pre924538.3497aa5c9457/nixexprs.tar.xz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz"
+      }
+    },
+    "nixpkgs_5": {
+      "locked": {
+        "lastModified": 1781607440,
+        "narHash": "sha256-rxO+uc/KFbSJp+pgyXRuAX6QlG9hJdnt0BXpEQRXY+U=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4100e830e085863741bc69b156ec4ccd53ab5be0",
+        "rev": "3e41b24abd260e8f71dbe2f5737d24122f972158",
         "type": "github"
       },
       "original": {
@@ -333,7 +349,7 @@
         "import-tree": "import-tree_2",
         "musnix": "musnix",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_4",
+        "nixpkgs": "nixpkgs_5",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },

home-manager/home.nix

@@ -16,6 +16,8 @@
     suiteModules.homeManager.lauretta
     suiteModules.homeManager.audio
     suiteModules.homeManager.claude
+    suiteModules.homeManager.claude-memory
+    suiteModules.homeManager.claude-skills
     suiteModules.homeManager.encryption
     suiteModules.homeManager.git-config
     suiteModules.homeManager.hfsprogs
@@ -29,13 +31,17 @@
     suiteModules.homeManager.qutebrowser
     suiteModules.homeManager.reaper
     suiteModules.homeManager.snx-rs
+    suiteModules.homeManager.roam-backup
     suiteModules.homeManager.ytdl
+    suiteModules.homeManager.chess
   ];
 
   programs.home-manager.enable = true;
 
   azos.suites.lauretta.enable = true;
+  azos.chess.enable = true;
   azos.name = "Aner Zakobar";
+  azos.roam-backup.enable = true;
 
   home = {
     username = "aner";

nixos/configuration.nix

@@ -20,12 +20,14 @@
     suiteModules.nixos.virtualization
     suiteModules.nixos.binfmt
     suiteModules.nixos.attic
+    suiteModules.nixos.printing
   ];
 
   boot.loader.grub = {
     enable = true;
     efiSupport = true;
     device = "nodev";
+    configurationLimit = 5;
   };
   boot.loader.efi.canTouchEfiVariables = true;
 
@@ -86,6 +88,7 @@
 
   azos.suites.exwm.enable = true;
   azos.attic.enable = true;
+  azos.printing.enable = true;
 
   home-manager = {
     extraSpecialArgs = {inherit inputs outputs suiteModules pkgs;};