Bugfix

- homey-alert: add a global PreToolUse hook that transparently times every
  Bash command Claude runs and fires a notification once a command crosses
  the configured threshold (default 5 min), without needing the skill to
  be invoked manually. Also makes homey-alert always fire a local
  notify-send alongside the ntfy push, since the ntfy server isn't always
  reachable.
- nextcloud: fix sleep crash-loop under the restricted systemd PATH
  (bin/sleep -> coreutils store path).
- azos-core bump (adds ncdu to the base suite).

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 {
+    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

_machines/beacon-wsl.nix

@@ -0,0 +1,17 @@
+{
+  config,
+  inputs,
+  ...
+}: {
+  config.flake.nixosConfigurations.beacon-wsl = inputs.nixpkgs.lib.nixosSystem {
+    specialArgs = {
+      inherit inputs;
+      outputs = config.flake;
+      suiteModules = config.flake.modules;
+    };
+    modules = [../nixos/configuration-beacon-wsl.nix];
+  };
+
+  config.flake.packages.x86_64-linux.beacon-wsl-tarball =
+    config.flake.nixosConfigurations.beacon-wsl.config.system.build.tarballBuilder;
+}

features/bluetooth/default.nix

@@ -11,6 +11,12 @@
     config = lib.mkIf config.azos.bluetooth.enable {
       services.blueman.enable = true;
       hardware.bluetooth.enable = true;
+      environment.etc."bluetooth/input.conf" = lib.mkForce {
+        text = ''
+          [General]
+          ClassicBondedOnly=false
+        '';
+      };
     };
   };
 }

features/chess/default.nix

@@ -0,0 +1,39 @@
+{...}: {
+  config.flake.overlayPkgs.emacs-lichess = pkgs: let
+    epkgs = pkgs.emacs.pkgs;
+  in
+    epkgs.trivialBuild {
+      pname = "lichess";
+      version = "1.0";
+      src = pkgs.fetchFromGitHub {
+        owner = "tmythicator";
+        repo = "lichess.el";
+        rev = "572a6a353e2113c8a95564b9bea1f2896e6d3dab";
+        sha256 = "1d87qjmdpizggkrzq39i9vqgvbpjf5mv97vm7zy28ksbqxmfasqa";
+      };
+      # trivialBuild's installPhase only installs *.el/*.elc; the piece SVGs
+      # under assets/ must be copied alongside so the default
+      # lichess-board-gui-asset-path (relative to the installed .el file) resolves.
+      postInstall = ''
+        cp -r assets $out/share/emacs/site-lisp/
+      '';
+    };
+
+  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.azos-emacs-chess];
+      azos.emacs.enabledSuites = ["azos-emacs-chess"];
+    };
+  };
+}

features/chess/emacs/_pkg.nix

@@ -0,0 +1,14 @@
+{
+  orgTrivialBuild,
+  epkgs,
+  pkgs,
+}:
+orgTrivialBuild {
+  pname = "azos-emacs-chess";
+  version = "0.1.0";
+  src = ./config.org;
+  packageRequires = with epkgs; [
+    pkgs.azos-emacs-base
+    pkgs.emacs-lichess
+  ];
+}

features/chess/emacs/config.org

@@ -0,0 +1,30 @@
+#+title: Aner's Emacs Chess Configuration
+#+property: header-args :results silent
+
+* Base setup
+** Require
+
+#+begin_src emacs-lisp
+(require 'azos-emacs-base)
+#+end_src
+
+* Lichess
+
+#+begin_src emacs-lisp
+(use-package lichess
+  :demand t
+  :init
+  (defun azos/chess/open ()
+    "Open lichess in its dedicated \"chess\" tab."
+    (interactive)
+    (azos/tab-bar/open-singleton-tab "chess" #'lichess))
+  :bind
+  (:map azos/global-minor-mode/open-keymap
+        ("k" . azos/chess/open)))
+#+end_src
+
+* Provide
+
+#+begin_src emacs-lisp
+(provide 'azos-emacs-chess)
+#+end_src

features/chess/emacs/default.nix

@@ -0,0 +1,3 @@
+{...}: {
+  config.flake.overlayPkgs.azos-emacs-chess = pkgs: pkgs.localEmacsPkg ./_pkg.nix;
+}

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/encryption/default.nix

@@ -13,25 +13,68 @@
       programs.password-store = {
         enable = true;
         settings = {
-          PASSWORD_STORE_KEY = "076AA297579A0064";
+          PASSWORD_STORE_KEY = "26B851F81F8F7C55";
         };
       };
       home.packages = with pkgs; [
         yubikey-personalization
-        pinentry-gtk2
       ];
       programs.gpg = {
         enable = true;
       };
+      programs.browserpass = {
+        enable = true;
+        browsers = ["chromium"];
+      };
       services.gpg-agent = {
         enable = true;
         enableSshSupport = true;
         grabKeyboardAndMouse = false;
-        pinentry.package = pkgs.pinentry-gtk2;
+        pinentry.package = pkgs.pinentry-emacs;
+        extraConfig = ''
+          allow-emacs-pinentry
+          allow-loopback-pinentry
+        '';
       };
+
+      # pinentry-emacs needs INSIDE_EMACS set, but NOT on gpg-agent itself:
+      # gpg-agent calls gnupg_unsetenv("INSIDE_EMACS") on its own process at
+      # startup (agent/gpg-agent.c, both supervised and daemon mode) -- by
+      # design, it expects this to arrive per-connection from the CLIENT,
+      # not statically from its own daemon environment. Each gpg/git
+      # invocation reads INSIDE_EMACS from its own env and forwards it to
+      # gpg-agent via "OPTION putenv=INSIDE_EMACS=..." (common/asshelp.c:
+      # send_pinentry_environment); gpg-agent stores that per-session and
+      # copies it into the forked pinentry's actual env for that one
+      # request (agent/call-pinentry.c:atfork_core). So the var has to be
+      # set on whatever shell/process runs git or gpg -- a prior attempt
+      # at this set it on gpg-agent.service's systemd Environment instead,
+      # which gpg-agent silently discards before it can ever be read.
+      #
+      # Only safe to set globally when Emacs is structurally guaranteed to
+      # be up and responsive -- i.e. under EXWM, where Emacs *is* the
+      # window manager. Elsewhere Emacs may not be running (fine: the
+      # loopback socket connect fails instantly, same fast fallback as
+      # today) or may be running but transiently busy (not fine: pinentry
+      # then blocks on the Assuan handshake for up to its 60s timeout
+      # before falling back, which is strictly worse than today's instant
+      # failure).
+      home.sessionVariables = lib.mkIf config.azos.suites.exwm.enable {
+        INSIDE_EMACS = "t";
+      };
+
       home.file.".ssh/config".source = ./ssh-config;
       home.file.".ssh/gpg-as-ssh.pub".source = ./gpg-as-ssh.pub;
       home.file.".gnupg/sshcontrol".source = ./sshcontrol;
+
+      # home-manager creates ~/.gnupg (via the files above) with the default
+      # umask, which can leave it group/other-readable. gpg refuses to trust
+      # a homedir like that and prints an "unsafe permissions" warning on
+      # every invocation, which pollutes anything that captures gpg/pass
+      # output (e.g. shell-command-to-string). Enforce 700 on every switch.
+      home.activation.gnupgPerms = lib.hm.dag.entryAfter ["writeBoundary"] ''
+        $DRY_RUN_CMD chmod 700 "$HOME/.gnupg"
+      '';
     };
   };
 }

features/encryption/gpg-as-ssh.pub

@@ -1 +1 @@
-ssh-rsa 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 (none)
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQDMdozJewuuqG4VuwGhI5Uw2xDIUrkQwyPGQ2q3tvnPq/VoV+zfdnou42I6XYEfOGd6xfLR0byOGCk1Ia1F/picBsxADEaJFBnTny5MWNA5MxwJIYUPW5+kFN1TmxdNGmj0WJ8qZeKkS3ffixdHlHTVu4Rzrlu8qDdw8TmgcvD7sHpNaBB+hwG9B/s5BAozfXvyXtW51lLLrEZdmUXJxAP51ubVgysZ985PA89o4G7LUE20IKAj3rgylLwq+Lz2PoGmVCptPTknLLzGlxTy2mU/tESJtS4iUvshSYiKak73BSen88xLWL/eZGFzOLW4TNem/qT0ykqK1s1BaGWCcQiDWN+Lpa3XqTbFN054MfhLdEMp+NjrdsCbZORzp9p2ZPDqi5jI1Hy7IN/8VzzB+T13MX6YhW7CBBqUZaivGhVQGsNjrFusPGhCaZrzNJ1l4qssLAlOh9qdaYzqDe+BIHsty55vw4Ph+Axou82babpLoiQzkCol2TWjPr7JSfHFkm6CmoTQ7mK8m7jRCodmxF+BEe4Usr+HrTKDc9fr5P4mdfL0O+ZPrlkPuG1zBTMal9MPxeCk4emzOZf7vBMNzb0aKHbOtSdVk/IcjatlDd2EIo34e5A6anLRMAdxb7901mnCAcjvCn6+ArNV8nr+NBk1+UvumZ+Q59LTrAkgRt3rBw== openpgp:0x13E0C25D

features/encryption/sshcontrol

@@ -1 +1 @@
-61D809B46CEE2A0AF799C4C2FADB0F61A19EEABD
+37710BAB5F6DC9878A450CDA8A4661D932C04ACB

features/git-config/default.nix

@@ -14,7 +14,7 @@
       programs.git = {
         enable = true;
         signing = {
-          key = "6D17E295C70E2674";
+          key = "BB141234A3DD953D";
           signByDefault = true;
         };
         settings = {

features/git-config/pass-git-mapping.ini

@@ -1,2 +1,2 @@
 [*git.zakobar.com*]
-target=zakobar.com/users/aner
+target=zakobar.com

features/hardware-auth/default.nix

@@ -0,0 +1,52 @@
+{...}: {
+  config.flake.modules.nixos.hardware-auth = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: {
+    options.azos.hardware-auth.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = ''
+        Enables YubiKey (U2F/FIDO2) as a "sufficient" PAM factor ahead of
+        the password, for both sudo and login (which greetd/tuigreet
+        substacks) -- touch the key to auth, or just type your password as
+        normal if it's not plugged in.
+
+        After enabling and rebuilding, enroll each key on the new machine
+        (per-user, not machine-wide state, so this must be redone per
+        machine):
+
+          mkdir -p ~/.config/Yubico
+          pamu2fcfg > ~/.config/Yubico/u2f_keys
+
+        To add a second/backup key without overwriting the first:
+
+          pamu2fcfg -n >> ~/.config/Yubico/u2f_keys
+
+        Test with `sudo true` (touching the key) before trusting it on the
+        greeter -- a login lockout is harder to recover from than a failed
+        sudo in an already-open session.
+      '';
+    };
+
+    config = lib.mkIf config.azos.hardware-auth.enable {
+      # Default NixOS PAM rule ordering already tries u2f before pam_unix
+      # (password), both "sufficient" -- so YubiKey touch wins first,
+      # password always remains as fallback.
+      #
+      # Fingerprint (fprintd) is deliberately not wired up here: lauretta's
+      # reader is a Synaptics Metallica MIS (06cb:009a), a match-on-chip
+      # sensor unsupported by upstream libfprint. The only known fix is an
+      # unofficial python-validity + open-fprintd stack, not packaged in
+      # nixpkgs and fragile enough (suspend/resume, PAM lockout risk) to not
+      # be worth it for now.
+      security.pam.u2f = {
+        enable = true;
+        settings.cue = true;
+      };
+    };
+  };
+}

features/headphones/default.nix

@@ -5,15 +5,51 @@
     pkgs,
     ...
   }: {
-    options.azos.headphones-whmx4000.enable = lib.mkOption {
-      default = true;
+    options.azos.headphones = {
+      enable = lib.mkOption {
+        default = false;
+        example = true;
         type = lib.types.bool;
       };
-    config = lib.mkIf config.azos.headphones-whmx4000.enable {
-      home.packages = [
-        (pkgs.writeShellScriptBin
-          "azos-connect-headphones-whmx4000"
-          "echo \"connect AC:80:0A:AF:E1:C2\" | bluetoothctl")
+      devices = lib.mkOption {
+        default = [];
+        type = lib.types.listOf (lib.types.submodule {
+          options = {
+            mac = lib.mkOption {type = lib.types.str;};
+            name = lib.mkOption {type = lib.types.str;};
+          };
+        });
+        description = "Headphone devices; first entry is the default connect target.";
+      };
+    };
+
+    config = lib.mkIf config.azos.headphones.enable {
+      home.packages = let
+        deviceEntries =
+          lib.concatMapStrings
+          (d: "  ${lib.escapeShellArg "${d.mac} ${d.name}"}\n")
+          config.azos.headphones.devices;
+        defaultMac =
+          if config.azos.headphones.devices == []
+          then ""
+          else (lib.head config.azos.headphones.devices).mac;
+      in [
+        (pkgs.writeShellScriptBin "azos-connect-headphones" ''
+          DEVICES=(
+          ${deviceEntries})
+
+          case "$1" in
+            --list)
+              printf '%s\n' "''${DEVICES[@]}"
+              ;;
+            --mac)
+              echo "connect $2" | bluetoothctl
+              ;;
+            *)
+              echo "connect ${defaultMac}" | bluetoothctl
+              ;;
+          esac
+        '')
       ];
     };
   };

features/homey-alert/default.nix

@@ -0,0 +1,191 @@
+{...}: {
+  config.flake.modules.homeManager.homey-alert = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: {
+    options.azos.homey-alert.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+    };
+    options.azos.homey-alert.longCommandThresholdSeconds = lib.mkOption {
+      default = 300;
+      example = 600;
+      type = lib.types.int;
+      description = ''
+        Installs a global PreToolUse hook (matcher "Bash") in
+        ~/.claude/settings.json that transparently wraps every Bash command
+        Claude Code runs: it times the command, and if it ran at or past
+        this threshold, fires homey-alert with the elapsed time and exit
+        code once it finishes. Commands that finish faster are unaffected.
+
+        This exists so long-running commands (big rclone transfers, builds)
+        notify automatically even when Claude never thinks to chain
+        homey-alert itself, and even if the harness moves the command to
+        the background partway through.
+
+        The hook only adds timing + notification around the command as
+        given -- it does not change permissions, so normal confirmation
+        prompts for risky commands still happen exactly as before.
+      '';
+    };
+
+    config = lib.mkIf config.azos.homey-alert.enable (let
+      threshold = toString config.azos.homey-alert.longCommandThresholdSeconds;
+      # Rewrites every Bash tool command to time itself and fire
+      # homey-alert if it ran at or past the threshold. The original
+      # command is spliced in verbatim (not eval'd from an encoded blob)
+      # so it stays human-readable in any permission prompt, and it's run
+      # in a subshell so the wrapper's own timing/notify code still runs
+      # even if the original command uses `set -e` or calls `exit`.
+      # permissionDecision is deliberately omitted from the hook's JSON
+      # output: supplying it (even as "allow") would bypass the normal
+      # confirmation flow, which must stay untouched here.
+      bashNotifyHook = pkgs.writeShellApplication {
+        name = "azos-bash-notify-hook";
+        runtimeInputs = [pkgs.jq];
+        text = ''
+          input=$(cat)
+          command=$(printf '%s' "$input" | jq -r '.tool_input.command // empty' 2>/dev/null) || command=""
+
+          if [ -z "$command" ]; then
+            echo '{}'
+            exit 0
+          fi
+
+          wrapped="__azos_notify_start=\$(date +%s)
+          (
+          $command
+          )
+          __azos_notify_rc=\$?
+          __azos_notify_dur=\$(( \$(date +%s) - __azos_notify_start ))
+          if [ \"\$__azos_notify_dur\" -ge ${threshold} ]; then
+            __azos_notify_tag=\$([ \"\$__azos_notify_rc\" -eq 0 ] && echo white_check_mark || echo x)
+            homey-alert -t \"Long command\" -T \"\$__azos_notify_tag\" \"Finished in \$__azos_notify_dur s (exit \$__azos_notify_rc)\" >/dev/null 2>&1 || true
+          fi
+          exit \"\$__azos_notify_rc\""
+
+          jq -n --arg cmd "$wrapped" \
+            '{hookSpecificOutput: {hookEventName: "PreToolUse", updatedInput: {command: $cmd}}}' 2>/dev/null || echo '{}'
+        '';
+      };
+    in {
+      azos.claude.globalSkills.notify = ./notify-skill.md;
+
+      home.activation.configureBashNotifyHook = lib.hm.dag.entryAfter ["writeBoundary"] ''
+        SETTINGS_JSON="$HOME/.claude/settings.json"
+        HOOK_ENTRY=$(${pkgs.jq}/bin/jq -n \
+          --arg cmd "${bashNotifyHook}/bin/azos-bash-notify-hook" \
+          '{
+            matcher: "Bash",
+            hooks: [{type: "command", command: $cmd}]
+          }')
+
+        if [ -f "$SETTINGS_JSON" ]; then
+          tmp=$(mktemp)
+          ${pkgs.jq}/bin/jq --argjson entry "$HOOK_ENTRY" \
+            '.hooks.PreToolUse = ((.hooks.PreToolUse // []) | map(select(.matcher != $entry.matcher))) + [$entry]' \
+            "$SETTINGS_JSON" > "$tmp" && mv "$tmp" "$SETTINGS_JSON"
+        else
+          ${pkgs.jq}/bin/jq -n --argjson entry "$HOOK_ENTRY" \
+            '{hooks: {PreToolUse: [$entry]}}' > "$SETTINGS_JSON"
+        fi
+      '';
+
+      home.packages = [
+        bashNotifyHook
+        (pkgs.writeShellApplication {
+          name = "homey-alert";
+          runtimeInputs = with pkgs; [curl pass libnotify];
+          text = ''
+            usage() {
+              cat <<EOF
+            Usage: homey-alert [OPTIONS] [MESSAGE]
+
+            Send a notification to the homey ntfy server (ntfy.zakobar.com/alerts),
+            and (when run locally, not with --print-remote) also via notify-send --
+            the ntfy server isn't always reachable, so the local desktop notification
+            always fires too, independent of whether the ntfy push succeeds.
+            MESSAGE can be given as a positional argument or piped via stdin.
+
+            Options:
+              -t, --title TITLE      notification title
+              -p, --priority PRIO    priority: min|low|default|high|urgent  (default: default)
+              -T, --tags TAGS        comma-separated emoji shortcodes (e.g. warning,rotating_light)
+              -r, --print-remote     print the curl command instead of running it
+                                     (for pasting into SSH commands to remote machines)
+              -h, --help             show this help
+
+            Examples:
+              # Local
+              long_cmd && homey-alert -t "Training" -p high -T white_check_mark "done"
+
+              # Remote — expands locally, runs on the remote machine
+              ssh user@host "python train.py && \$(homey-alert -r -t 'Training' 'done')"
+            EOF
+            }
+
+            TITLE=""
+            PRIORITY="default"
+            TAGS=""
+            PRINT_REMOTE=false
+
+            while [[ $# -gt 0 ]]; do
+              case "$1" in
+                -t|--title)        TITLE="$2";        shift 2 ;;
+                -p|--priority)     PRIORITY="$2";     shift 2 ;;
+                -T|--tags)         TAGS="$2";         shift 2 ;;
+                -r|--print-remote) PRINT_REMOTE=true; shift   ;;
+                -h|--help)         usage; exit 0 ;;
+                --)                shift; break ;;
+                -*)                echo "Unknown option: $1" >&2; usage >&2; exit 1 ;;
+                *)                 break ;;
+              esac
+            done
+
+            if [[ $# -gt 0 ]]; then
+              MESSAGE="$*"
+            elif [[ ! -t 0 ]]; then
+              MESSAGE="$(cat)"
+            else
+              echo "homey-alert: no message provided" >&2
+              usage >&2
+              exit 1
+            fi
+
+            TOKEN="$(pass zakobar-homecenter/ntfy-token)"
+
+            # Build the curl invocation as an array — single source of truth for both modes
+            CMD=(
+              curl -sf
+              -H "Authorization: Bearer $TOKEN"
+              -H "Priority: $PRIORITY"
+            )
+            [[ -n "$TITLE" ]] && CMD+=(-H "Title: $TITLE")
+            [[ -n "$TAGS"  ]] && CMD+=(-H "Tags: $TAGS")
+            CMD+=(-d "$MESSAGE" https://ntfy.zakobar.com/alerts)
+
+            if $PRINT_REMOTE; then
+              # Shell-quote each element so the output is safe to embed in SSH commands
+              printf '%q ' "''${CMD[@]}"
+              printf '\n'
+            else
+              "''${CMD[@]}" || true
+
+              # Local desktop notification, independent of the ntfy push above --
+              # the server isn't always up, so this always fires as a fallback.
+              URGENCY="normal"
+              case "$PRIORITY" in
+                min|low)    URGENCY="low" ;;
+                high|urgent) URGENCY="critical" ;;
+              esac
+              notify-send -u "$URGENCY" "''${TITLE:-homey-alert}" "$MESSAGE" || true
+            fi
+          '';
+        })
+      ];
+    });
+  };
+}

features/homey-alert/notify-skill.md

@@ -0,0 +1,65 @@
+# Homey Alert — sending ntfy notifications when tasks finish
+
+Use `homey-alert` to push notifications to Aner's homelab ntfy server when long tasks complete.
+
+## When to use proactively
+
+When running (or suggesting) a command that will take more than ~30 seconds — training runs,
+builds, deploys, downloads, test suites — append a notification automatically. Don't wait to
+be asked.
+
+## Background / async tasks (Claude Code specifically)
+
+If you (the agent) are running a command via Bash that could take longer than
+~10 minutes — large rclone/rsync transfers, builds, training runs — and it
+might run in the background (either because you set `run_in_background`, or
+because the harness auto-backgrounds it after its timeout), chain the
+`homey-alert` call **into that same command string from the start**. Don't
+wait until you notice it's taking a while and then think about notifying —
+by then the command is already running without it, and the harness's own
+"task finished" signal only reaches this session, not Aner's phone. Chaining
+upfront is the only way to get a real ntfy push the moment it actually
+finishes:
+
+```bash
+rclone copy ... ; homey-alert -t "Backup" -p default -T "$([ $? -eq 0 ] && echo white_check_mark || echo x)" "rclone copy finished (exit $?)"
+```
+
+## Local commands
+
+Append after the command so it fires on success only (`&&`) or always (`;`):
+
+```bash
+# Notify on success only
+long_cmd && homey-alert "Task done"
+
+# Always notify (even on failure) — prefer this for deploys/training
+long_cmd; homey-alert -t "Training" -p high -T "$([ $? -eq 0 ] && echo white_check_mark || echo x)" "Exited $?"
+```
+
+## Remote commands (SSH / training machines)
+
+Remote machines don't have `homey-alert`. Use `-r`/`--print-remote` to get a self-contained
+`curl` command with the token already embedded. The `$(...)` expands **locally**; the resulting
+command string is what the remote machine executes.
+
+```bash
+ssh user@host "python train.py && $(homey-alert -r -t 'Training' -p high -T white_check_mark 'Model finished')"
+```
+
+The remote machine only needs `curl` (universally available).
+
+## Flags
+
+| Flag | Short | Values / notes |
+|------|-------|----------------|
+| `--title TITLE` | `-t` | Notification title |
+| `--priority PRIO` | `-p` | `min` / `low` / `default` / `high` / `urgent` |
+| `--tags TAGS` | `-T` | Comma-separated emoji shortcodes: `white_check_mark`, `x`, `warning`, `rotating_light`, `tada` |
+| `--print-remote` | `-r` | Print curl command instead of running (embed token locally, run remotely) |
+
+## Choosing priority and tags
+
+- Routine completion (backup, build): `default` priority, `white_check_mark`
+- Training / long job: `high` priority, `white_check_mark` on success / `x` on failure
+- Something broke: `urgent` priority, `rotating_light`

features/kubernetes/default.nix

@@ -6,7 +6,7 @@
     ...
   }: {
     options.azos.kubectl.enable = lib.mkOption {
-      default = true;
+      default = false;
       type = lib.types.bool;
     };
     config = lib.mkIf config.azos.kubectl.enable {

features/lauretta/emacs/_pkg.nix

@@ -15,6 +15,8 @@ orgTrivialBuild {
     pkgs.azos-emacs-station
 
     agent-shell
+    elfeed-protocol
     org-caldav
+    pinentry
   ];
 }

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
@@ -28,19 +34,46 @@
    :models '(openai/gpt-oss-120b)))
 #+end_src
 
+** GPG Pinentry
+
+gpg-agent is configured with =pinentry.package = pkgs.pinentry-emacs=, which
+needs a running Emacs-side pinentry service to hand it prompts over a
+loopback socket. Without =pinentry-start=, the pinentry-emacs binary can't
+reach Emacs and falls back to the curses pinentry (visible as a TUI prompt
+when committing from vterm) or hangs entirely (as seen from Magit).
+
+#+begin_src emacs-lisp
+(require 'pinentry)
+(pinentry-start)
+#+end_src
+
 ** 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
 
 #+begin_src emacs-lisp
-(defun azos/connect-headphones ()
-  (interactive)
-    (start-process-shell-command "connect-headphones" nil "azos-connect-headphones-whmx4000"))
+(defun azos/connect-headphones (&optional arg)
+  "Connect to headphones via bluetoothctl.
+Without prefix ARG, connects to the first device in the list.
+With prefix ARG, prompts to choose from all configured devices."
+  (interactive "P")
+  (if (not arg)
+      (start-process-shell-command "connect-headphones" nil "azos-connect-headphones")
+    (let* ((raw (shell-command-to-string "azos-connect-headphones --list"))
+           (lines (split-string (string-trim raw) "\n" t))
+           (choices (mapcar (lambda (line)
+                              (let ((space (string-match " " line)))
+                                (cons (substring line (1+ space))
+                                      (substring line 0 space))))
+                            lines))
+           (name (completing-read "Connect headphones: " (mapcar #'car choices) nil t))
+           (mac (cdr (assoc name choices))))
+      (start-process-shell-command "connect-headphones" nil
+                                   (concat "azos-connect-headphones --mac " mac)))))
 
 (define-key azos/global-minor-mode/open-keymap
     (kbd "h") 'azos/connect-headphones)
@@ -147,7 +180,7 @@
   (interactive)
   (let* ((password (string-trim
                     (shell-command-to-string
-                     (format "pass zakobar.com/users/%s" azos/lauretta/nextcloud-user))))
+                     "pass zakobar.com | head -1")))
          (url-http-real-basic-auth-storage
           (list (list "nextcloud.zakobar.com:443"
                       (cons azos/lauretta/nextcloud-user password)))))
@@ -157,6 +190,149 @@
     (kbd "C") 'azos/caldav-sync)
 #+end_src
 
+** Elfeed Nextcloud News Sync
+
+[[https://github.com/fasheng/elfeed-protocol][elfeed-protocol]] adds an =owncloud+= protocol that speaks the
+ownCloud News API, which the Nextcloud News app also implements, so
+it syncs elfeed's feed list and read/unread state with the Nextcloud
+News app instead of just reading a local feed list one-way.
+
+Reuses the same =zakobar.com= pass entry as the CalDAV sync above,
+since it's the same Nextcloud account.
+
+As of elfeed-protocol 1.0.0 (paired with elfeed >= 4.0.0), the
+credentials go directly on =elfeed-feeds= — the older
+=elfeed-protocol-feeds= variable is dead: setting it only logs a
+deprecation warning, and =elfeed-feeds= ends up with the bare URL
+and no =:password=, so requests silently authenticate with an empty
+password and nothing ever lands in the db.
+
+Fetching the password with =shell-command-to-string= used to
+deadlock Emacs whenever the GPG PIN cache had expired: that call
+blocks Emacs's single thread on the =pass|gpg= subprocess, but
+=pinentry-emacs= (see the GPG Pinentry section above) needs Emacs's
+command loop running to answer its loopback prompt — so Emacs waits
+on gpg-agent while gpg-agent waits on Emacs. Fetching the password
+with =make-process= instead keeps the command loop alive, so
+=pinentry-emacs= can prompt normally; =elfeed-feeds= and
+=elfeed-protocol-enable= are only set once the process sentinel
+fires. Same stderr-redirect reasoning as before, to keep a stray
+gpg/pass warning off the captured password.
+
+The fetch is wrapped in a named, interactive function rather than
+inlined in =:config= so a failed attempt (e.g. =pass= produced no
+output because the YubiKey wasn't plugged in yet) can be retried
+with =M-x azos/elfeed-protocol-init-feeds= — re-running =:config=
+itself would require reloading the =elfeed-protocol= feature
+entirely. An earlier version passed =(process-get proc 'output)=
+straight to =string-trim=, which signals (not just returns nil) when
+no output was ever read, aborting the sentinel before =elfeed-feeds=
+or =elfeed-protocol-enable= ran — so a failed first attempt left
+=elfeed-feeds= permanently =nil= for the rest of the session with no
+visible error beyond a =*Messages*= line, and every subsequent
+=elfeed-update= silently had nothing to fetch.
+
+#+begin_src emacs-lisp
+(defun azos/elfeed-protocol-init-feeds ()
+  "Fetch the Nextcloud password and (re)enable elfeed-protocol sync.
+Unlike the one-shot `use-package' :config form this is called from,
+safe to call again (e.g. via \\[azos/elfeed-protocol-init-feeds]) if
+a previous attempt failed, such as the YubiKey not being plugged in
+yet — it re-spawns the `pass' process and re-prompts for the PIN."
+  (interactive)
+  (make-process
+   :name "elfeed-protocol-pass"
+   :command '("sh" "-c" "pass zakobar.com 2>/dev/null | head -1")
+   :noquery t
+   :filter (lambda (proc chunk)
+             (process-put proc 'output (concat (or (process-get proc 'output) "") chunk)))
+   :sentinel (lambda (proc _event)
+               (let ((password (string-trim (or (process-get proc 'output) ""))))
+                 (if (string-empty-p password)
+                     (message "elfeed-protocol: `pass zakobar.com' produced no output; retry with M-x azos/elfeed-protocol-init-feeds")
+                   (setq elfeed-feeds
+                         `(("owncloud+https://aner@nextcloud.zakobar.com"
+                            :password ,password)))
+                   (elfeed-protocol-enable)
+                   (elfeed-update))))))
+
+(use-package elfeed-protocol
+  :after elfeed
+  :config
+  (setq elfeed-protocol-enabled-protocols '(owncloud))
+  (azos/elfeed-protocol-init-feeds))
+#+end_src
+
+** Elfeed Full Article Fetch
+
+Many feeds only publish a short excerpt. elfeed >= 4.0 has built-in
+commands for this — =f= (=elfeed-show-fetch-link=) fetches the
+linked page and appends it to the show buffer, =R=
+(=elfeed-show-readable=) strips the fetched page down to
+article text via eww's readability scorer — and both can run
+automatically via =elfeed-show-update-hook=, gated on a feed's
+=:fetch-link=/=:readable= metadata.
+
+That gating keys off an exact match on the feed's URL/id in
+=elfeed-feeds=, which breaks for ownCloud/Nextcloud subfeeds:
+elfeed-protocol synthesizes a per-subfeed id of the form
+=<host-url>::<subfeed-url>= that never appears in =elfeed-feeds=
+(only the bare host URL does), so the metadata lookup always misses
+and the stock hooks never fire. Replacing them with unconditional
+versions makes full-text + readable-mode the default for every
+entry instead.
+
+#+begin_src emacs-lisp
+(defun azos/elfeed-show-auto-readable ()
+  "Like `elfeed-show-auto-readable', but unconditional."
+  (unless (local-variable-p 'elfeed-transform-html-functions)
+    (let ((inhibit-message t))
+      (elfeed-show-readable))))
+
+(defun azos/elfeed-show-auto-fetch-link ()
+  "Like `elfeed-show-auto-fetch-link', but unconditional."
+  (elfeed-show-fetch-link))
+
+(setq elfeed-show-update-hook
+      (list #'azos/elfeed-show-auto-readable #'azos/elfeed-show-auto-fetch-link))
+#+end_src
+
+** Lichess
+
+=lichess.org= in pass already holds the website login password, and
+lichess.el's =auth-source-pass= lookup resolves by bare hostname, so
+the API token can't live under that same entry without colliding.
+Store it separately under =lichess.org/token= (=pass insert
+lichess.org/token=) and set the =lichess-token= variable directly —
+=lichess-token= (the function) checks this variable before falling
+back to =auth-source=, so this takes precedence without disturbing
+the existing =lichess.org= entry or its consumers (e.g. browserpass).
+
+=shell-command-to-string= merges stderr into its return value, so any
+gpg/pass warning on stderr (e.g. an unsafe-permissions notice) would
+otherwise get concatenated onto the token and break auth silently.
+Redirect stderr away so only the token itself is ever captured.
+
+#+begin_src emacs-lisp
+(setq lichess-token
+      (string-trim (shell-command-to-string "pass lichess.org/token 2>/dev/null | head -1")))
+#+end_src
+
+=gpg-agent= may not have a cached passphrase yet when the =setq= above
+runs at Emacs startup, in which case =pass= fails silently (stderr is
+redirected away) and =lichess-token= is left as =""=. Retry the fetch
+lazily right before each actual use, so a cold agent at startup
+doesn't permanently wedge the token for the rest of the session.
+
+#+begin_src emacs-lisp
+(with-eval-after-load 'lichess
+  (advice-add 'lichess-token :before
+              (lambda ()
+                (when (string-empty-p lichess-token)
+                  (setq lichess-token
+                        (string-trim (shell-command-to-string "pass lichess.org/token 2>/dev/null | head -1")))))))
+#+end_src
+
 ** Beacon Remote Jobs
 
 #+begin_src emacs-lisp
@@ -317,6 +493,62 @@ 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
+
+=roam-backup= signs its commit with gpg, which can prompt for the YubiKey PIN
+via pinentry. =async-shell-command= spawns the process with =TERM=dumb= and
+no real controlling tty, so pinentry's curses fallback fails with
+\"Inappropriate ioctl for device\" whenever the PIN cache has expired. Run it
+in a =vterm= instead, which gives pinentry a real pty to prompt on.
+
+#+begin_src emacs-lisp
+(defun azos/roam/backup ()
+  "Commit and push ~/roam to the remote git repo."
+  (interactive)
+  (let ((vterm-buffer-name "*roam-backup*"))
+    (with-current-buffer (vterm-other-window)
+      (vterm-send-string "roam-backup")
+      (vterm-send-return))))
+
+(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/leetcode/default.nix

@@ -0,0 +1,19 @@
+{...}: {
+  config.flake.modules.homeManager.leetcode = {
+    lib,
+    config,
+    pkgs,
+    ...
+  }: {
+    options.azos.leetcode.enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+    };
+
+    config = lib.mkIf config.azos.leetcode.enable {
+      azos.emacs.pkgs = [pkgs.azos-emacs-leetcode];
+      azos.emacs.enabledSuites = ["azos-emacs-leetcode"];
+    };
+  };
+}

features/leetcode/emacs/_pkg.nix

@@ -0,0 +1,14 @@
+{
+  orgTrivialBuild,
+  epkgs,
+  pkgs,
+}:
+orgTrivialBuild {
+  pname = "azos-emacs-leetcode";
+  version = "0.1.0";
+  src = ./config.org;
+  packageRequires = with epkgs; [
+    pkgs.azos-emacs-base
+    leetcode
+  ];
+}

features/leetcode/emacs/config.org

@@ -0,0 +1,29 @@
+#+title: Aner's Emacs Leetcode Configuration
+#+property: header-args :results silent
+
+* Base setup
+** Require
+
+#+begin_src emacs-lisp
+(require 'azos-emacs-base)
+#+end_src
+
+* Leetcode
+
+#+begin_src emacs-lisp
+(use-package leetcode
+  :init
+  (defun azos/leetcode/open ()
+    "Open leetcode in its dedicated \"leetcode\" tab."
+    (interactive)
+    (azos/tab-bar/open-singleton-tab "leetcode" #'leetcode))
+  :bind
+  (:map azos/global-minor-mode/open-keymap
+        ("L" . azos/leetcode/open)))
+#+end_src
+
+* Provide
+
+#+begin_src emacs-lisp
+(provide 'azos-emacs-leetcode)
+#+end_src

features/leetcode/emacs/default.nix

@@ -0,0 +1,3 @@
+{...}: {
+  config.flake.overlayPkgs.azos-emacs-leetcode = pkgs: pkgs.localEmacsPkg ./_pkg.nix;
+}

features/mail/default.nix

@@ -2,15 +2,18 @@
   config.flake.modules.homeManager.mail = {
     lib,
     config,
+    pkgs,
     ...
   }: let
     default_account_params = {
       realName = "Aner Zakobar";
-      notmuch.enable = true;
       mbsync = {
         enable = true;
         create = "maildir";
+        remove = "both";
+        expunge = "both";
       };
+      msmtp.enable = true;
     };
     default_gmail_params =
       default_account_params
@@ -20,9 +23,38 @@
     default_smtp = {
       tls = {
         enable = true;
+        useStartTls = true;
         certificatesFile = "/etc/ssl/certs/ca-certificates.crt";
       };
     };
+    # mbsync's PassCmd shells out to `pass`, which needs the GPG smartcard to
+    # decrypt. On a timer, a missing card would otherwise surface as a
+    # pinentry "please insert card" prompt every run. azos-card-present is a
+    # silent presence check (see overlays/default.nix): skip the sync
+    # entirely when the card isn't there, instead of letting mbsync hit that
+    # prompt.
+    #
+    # New mail is detected by counting files under every account's Maildir
+    # "new" subdirectory before and after the sync -- that's where messages
+    # the server hasn't marked seen land, across all three accounts at once,
+    # with no need to touch mu's index. A rise in that count means mail
+    # actually arrived, so only then does it post a desktop notification via
+    # notify-send -- intentionally separate from mu4e's own "mbsync -a" (its
+    # mu4e-get-mail-command), which doesn't go through this script at all.
+    mbsyncSafe = pkgs.writeShellScript "mbsync-safe" ''
+      if ! ${pkgs.azos-card-present}/bin/azos-card-present; then
+        exit 0
+      fi
+      before=$(find "$HOME/Maildir" -path '*/new/*' -type f 2>/dev/null | wc -l)
+      ${pkgs.isync}/bin/mbsync -a
+      after=$(find "$HOME/Maildir" -path '*/new/*' -type f 2>/dev/null | wc -l)
+      new=$((after - before))
+      if [ "$new" -gt 0 ]; then
+        label="new message"
+        [ "$new" -ne 1 ] && label="new messages"
+        ${pkgs.libnotify}/bin/notify-send "Mail" "$new $label"
+      fi
+    '';
   in {
     options.azos.mail.enable = lib.mkOption {
       default = true;
@@ -30,35 +62,38 @@
     };
     config = lib.mkIf config.azos.mail.enable {
       programs = {
-        notmuch = {
-          enable = true;
-          hooks = {preNew = "mbsync -a";};
-        };
+        mu.enable = true;
         mbsync.enable = true;
         msmtp.enable = true;
-        lieer.enable = true;
       };
-      services.lieer.enable = true;
+      home.activation.muInit = lib.hm.dag.entryAfter ["writeBoundary"] ''
+        if [ ! -d "$HOME/.cache/mu" ]; then
+          $DRY_RUN_CMD ${pkgs.mu}/bin/mu init \
+            --maildir="$HOME/Maildir" \
+            --my-address=aner@zakobar.com \
+            --my-address=anerisgreat@gmail.com \
+            --my-address=anerz@post.bgu.ac.il
+        fi
+      '';
       accounts.email.accounts = {
         gmail =
           default_gmail_params
           // {
             address = "anerisgreat@gmail.com";
             userName = "anerisgreat";
-            passwordCommand = "pass gmail.com/mbsync-anerisgreat";
+            passwordCommand = "pass mbsync/anerisgreat@gmail.com | head -1";
           };
         bgu =
           default_gmail_params
           // {
             address = "anerz@post.bgu.ac.il";
             userName = "anerz@post.bgu.ac.il";
-            passwordCommand = "pass post.bgu.ac.il/mbsync-anerz";
+            passwordCommand = "pass mbsync/anerz@post.bgu.ac.il | head -1";
           };
         zakobar =
           default_account_params
           // {
             address = "aner@zakobar.com";
-            msmtp.enable = true;
             primary = true;
             userName = "aner@zakobar.com";
             imap = {host = "mail.privateemail.com";};
@@ -68,9 +103,24 @@
                 port = 587;
                 host = "mail.privateemail.com";
               };
-            passwordCommand = "pass zakobar.com/mail/aner";
+            passwordCommand = "pass privateemail.com | head -1";
           };
       };
+      systemd.user.services.mbsync-timer = {
+        Unit.Description = "Sync mail via mbsync (skips silently if smartcard is absent)";
+        Service = {
+          Type = "oneshot";
+          ExecStart = "${mbsyncSafe}";
+        };
+      };
+      systemd.user.timers.mbsync-timer = {
+        Unit.Description = "Periodic mbsync mail sync";
+        Timer = {
+          OnStartupSec = "2m";
+          OnUnitActiveSec = "5m";
+        };
+        Install.WantedBy = ["timers.target"];
+      };
     };
   };
 }

features/nextcloud/default.nix

@@ -4,17 +4,74 @@
     config,
     pkgs,
     ...
-  }: {
+  }: let
+    mountDir = "synced-docs";
+    remoteSubfolder = "synced-docs";
+    remoteName = "ncsynceddocs";
+    remoteNameEnv = lib.toUpper remoteName;
+    # rclone's webdav backend needs the account's Nextcloud *user ID*, not
+    # its login name, in the /dav/files/<uid>/ path -- the two differ on
+    # this server. The login name ("aner") still goes in the `user` field
+    # for Basic Auth. Both the uid and password come from `pass` at service
+    # start, same as mbsync in features/mail, so neither lands in the Nix
+    # store.
+    #
+    # Shares the azos-card-present silent presence check (overlays/default.nix)
+    # with the mail sync timer: loop quietly until the YubiKey is plugged in
+    # (no pinentry prompt either way), then exec rclone in the foreground.
+    # Restart=always means unplugging/replugging the key remounts naturally.
+    nextcloudMountSafe = pkgs.writeShellScript "nextcloud-mount-safe" ''
+      set -eu
+      mountpoint="$HOME/${mountDir}"
+      mkdir -p "$mountpoint"
+      while ! ${pkgs.azos-card-present}/bin/azos-card-present; do
+        ${pkgs.coreutils}/bin/sleep 10
+      done
+      password=$(${pkgs.pass}/bin/pass zakobar.com | head -1)
+      uid=$(${pkgs.pass}/bin/pass nextcloud-username/aner | head -1)
+      export RCLONE_CONFIG_${remoteNameEnv}_TYPE=webdav
+      export RCLONE_CONFIG_${remoteNameEnv}_URL="https://nextcloud.zakobar.com/remote.php/dav/files/$uid/"
+      export RCLONE_CONFIG_${remoteNameEnv}_VENDOR=nextcloud
+      export RCLONE_CONFIG_${remoteNameEnv}_USER=aner
+      export RCLONE_CONFIG_${remoteNameEnv}_PASS="$(${pkgs.rclone}/bin/rclone obscure "$password")"
+      exec ${pkgs.rclone}/bin/rclone mount ${remoteName}:${remoteSubfolder} "$mountpoint" \
+        --vfs-cache-mode writes
+    '';
+  in {
     options.azos.nextcloud-client.enable = lib.mkOption {
       default = true;
       type = lib.types.bool;
     };
-    config = lib.mkIf config.azos.nextcloud-client.enable {
+    options.azos.nextcloud-mount.enable = lib.mkOption {
+      default = true;
+      type = lib.types.bool;
+    };
+    config = lib.mkMerge [
+      (lib.mkIf config.azos.nextcloud-client.enable {
         home.packages = with pkgs; [nextcloud-client];
         services.nextcloud-client = {
           enable = true;
           startInBackground = false;
         };
+      })
+      (lib.mkIf config.azos.nextcloud-mount.enable {
+        home.packages = with pkgs; [rclone];
+        # default.target, not graphical-session.target: the latter never
+        # activates under EXWM in this setup (nothing explicitly starts it),
+        # which is why nextcloud-client itself silently never autostarts.
+        systemd.user.services.nextcloud-mount = {
+          Unit.Description = "Mount Nextcloud ${remoteSubfolder} via rclone (waits silently for YubiKey)";
+          Service = {
+            Type = "simple";
+            Environment = "PATH=${pkgs.fuse3}/bin:${pkgs.fuse}/bin";
+            ExecStart = "${nextcloudMountSafe}";
+            ExecStop = "${pkgs.fuse3}/bin/fusermount3 -u %h/${mountDir}";
+            Restart = "always";
+            RestartSec = "10s";
           };
+          Install.WantedBy = ["default.target"];
+        };
+      })
+    ];
   };
 }

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 +58,6 @@ c.fonts.hints = "bold 13px 'LiberationMono'"
 #Set highdpi
 c.qt.highdpi = True
 c.zoom.default = 70
+
+c.qt.args = ['--disable-gpu']
+c.qt.environ = {'QT_XCB_GL_INTEGRATION': 'none', 'LIBGL_ALWAYS_SOFTWARE': '1'}

features/qutebrowser/default.nix

@@ -5,7 +5,7 @@
     ...
   }: {
     options.azos.qutebrowser-config.enable = lib.mkOption {
-      default = true;
+      default = false;
       type = lib.types.bool;
     };
     config = lib.mkIf config.azos.qutebrowser-config.enable {

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
+        '')
+      ];
+    };
+  };
+}

features/snx-rs/default.nix

@@ -9,7 +9,7 @@
   in {
     options.azos.snx-rs = {
       enable = lib.mkOption {
-        default = true;
+        default = false;
         type = lib.types.bool;
       };
       server = lib.mkOption {

flake.lock

@@ -56,6 +56,22 @@
         "type": "github"
       }
     },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -79,11 +95,11 @@
         "nixpkgs-lib": "nixpkgs-lib_2"
       },
       "locked": {
-        "lastModified": 1778716662,
-        "narHash": "sha256-m1Yf0wZ8j1OHjTc2UwHwyQRSnNeSgLJOd7q5Y45hzi4=",
+        "lastModified": 1788450739,
+        "narHash": "sha256-glZLQlzIn1fXH6PazR2iUmTo7kzzyYSshrWhLS9TqCU=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "f7c1a2d347e4c52d5fb8d10cb4d94b5884e546fb",
+        "rev": "31729ca8cbdb4fa927b34e5f4353e6a83f39e993",
         "type": "github"
       },
       "original": {
@@ -139,11 +155,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1779969295,
-        "narHash": "sha256-HwIJ3tOcwSMiV75L7KqJXciXR9UfT+d7rwOZMX7cTnA=",
+        "lastModified": 1788651960,
+        "narHash": "sha256-v9wJd32eZ2bvhBzVOd7TIjLQd011P7nwOhjKtWlci5I=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "61e2c9659324181e0f0ed911958c536333b1d4f6",
+        "rev": "2c0350c759688177331b8f5242311fae8877bdb3",
         "type": "github"
       },
       "original": {
@@ -170,11 +186,11 @@
     },
     "import-tree_2": {
       "locked": {
-        "lastModified": 1778781969,
-        "narHash": "sha256-Jjuz5CmSkur8KvLDoGa+vylEp+RkQtv4mt/qcMznpH0=",
+        "lastModified": 1788467110,
+        "narHash": "sha256-ljEMTXP/rH0tOvDzc9gzwww6KcHRPRnEHzd9lK48V7s=",
         "owner": "vic",
         "repo": "import-tree",
-        "rev": "d321337efd0f23a9eb14a42adb7b2c29313ab274",
+        "rev": "eb1b52eaecc57f7c136d07ae8a93e724dfecac46",
         "type": "github"
       },
       "original": {
@@ -202,12 +218,15 @@
       }
     },
     "nixos-hardware": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_4"
+      },
       "locked": {
-        "lastModified": 1779826373,
-        "narHash": "sha256-3sRzgLX86qV5NlhWUAufLmHwkyP03tmL3VdZIM13dEo=",
+        "lastModified": 1788335262,
+        "narHash": "sha256-3jBEq8avfzlrsY4UpW4d5TOmm7ocseZfnitEJhqauyc=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "ef4efb84766a166c906bd55759574676bf91267c",
+        "rev": "44d95795ee2d475b3d687325e26dcf4ca9104557",
         "type": "github"
       },
       "original": {
@@ -217,6 +236,27 @@
         "type": "github"
       }
     },
+    "nixos-wsl": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1784642409,
+        "narHash": "sha256-hcbDqFuySAJawljt5r0sKBCJKYnbtGD0T/ZIozH1Dq0=",
+        "owner": "nix-community",
+        "repo": "nixos-wsl",
+        "rev": "eaeb18da90024448a60eb1ec7132eafa4003404e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixos-wsl",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1769421245,
@@ -248,11 +288,11 @@
     },
     "nixpkgs-lib_2": {
       "locked": {
-        "lastModified": 1777168982,
-        "narHash": "sha256-GOkGPcboWE9BmGCRMLX3worL4EMnsnG8MyKmXNeYuhQ=",
+        "lastModified": 1788057806,
+        "narHash": "sha256-DTQSMxzDWmT0zhguthvegnVkn7CFqGCv4IHCzk5ZUpM=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "f5901329dade4a6ea039af1433fb087bd9c1fe14",
+        "rev": "596e2e3940e09b2abbeb03f75fa1828c57fcd72c",
         "type": "github"
       },
       "original": {
@@ -263,11 +303,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1779560665,
-        "narHash": "sha256-tpyBcxPpcQb8ukyNF7DoCwfSY3VPsxHoYwj00Cayv5o=",
+        "lastModified": 1788614874,
+        "narHash": "sha256-7QYjT2vHLuX9Z1pdxHXDKCbh1CR3D/2rywB9Tx0MPRg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "64c08a7ca051951c8eae34e3e3cb1e202fe36786",
+        "rev": "c043004d1c6985732bcc1cbc5a9c9aecbbb4e0f0",
         "type": "github"
       },
       "original": {
@@ -311,11 +351,24 @@
     },
     "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": 1788549839,
+        "narHash": "sha256-kOrCcSIA6w9J1hX5DqHy2k9pDTJymExTsbV74U9UtCA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4100e830e085863741bc69b156ec4ccd53ab5be0",
+        "rev": "17de0b976395537756f30a3e78f2f06e5cec89ed",
         "type": "github"
       },
       "original": {
@@ -333,7 +386,8 @@
         "import-tree": "import-tree_2",
         "musnix": "musnix",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_4",
+        "nixos-wsl": "nixos-wsl",
+        "nixpkgs": "nixpkgs_5",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },

flake.nix

@@ -21,6 +21,11 @@
       flake = true;
     };
 
+    nixos-wsl = {
+      url = "github:nix-community/nixos-wsl";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     flake-parts.url = "github:hercules-ci/flake-parts";
     import-tree.url = "github:vic/import-tree";
   };
@@ -34,6 +39,7 @@
         ./_machines/lauretta.nix
         ./_machines/vm.nix
         ./_machines/beacon.nix
+        ./_machines/beacon-wsl.nix
       ];
 
       systems = [

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
@@ -29,14 +31,38 @@
     suiteModules.homeManager.qutebrowser
     suiteModules.homeManager.reaper
     suiteModules.homeManager.snx-rs
+    suiteModules.homeManager.roam-backup
     suiteModules.homeManager.ytdl
+    suiteModules.homeManager.chess
+    suiteModules.homeManager.homey-alert
+    suiteModules.homeManager.leetcode
   ];
 
   programs.home-manager.enable = true;
 
   azos.suites.lauretta.enable = true;
+  azos.chess.enable = true;
+  azos.leetcode.enable = true;
   azos.name = "Aner Zakobar";
 
+  azos.headphones.enable = true;
+  azos.headphones.devices = [
+    {
+      mac = "AC:80:0A:AF:E1:C2";
+      name = "Aner's Headphones";
+    }
+    {
+      mac = "AC:80:0A:A1:5F:53";
+      name = "Chen's Headphones";
+    }
+    {
+      mac = "E4:17:D8:29:9B:16";
+      name = "8bitdo";
+    }
+  ];
+  azos.roam-backup.enable = true;
+  azos.homey-alert.enable = true;
+
   home = {
     username = "aner";
     homeDirectory = "/home/aner";

nixos/configuration-beacon-wsl.nix

@@ -0,0 +1,78 @@
+{
+  lib,
+  config,
+  pkgs,
+  inputs,
+  suiteModules,
+  ...
+}: {
+  imports = [
+    inputs.nixos-wsl.nixosModules.default
+    suiteModules.nixos.attic
+  ];
+
+  wsl.enable = true;
+  wsl.defaultUser = "aner";
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+  nixpkgs.config.allowUnfree = true;
+
+  nix.settings = {
+    experimental-features = ["nix-command" "flakes"];
+    auto-optimise-store = true;
+    substituters = [
+      "https://cache.nixos.org"
+      "https://cuda-maintainers.cachix.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
+    ];
+  };
+
+  security.sudo.wheelNeedsPassword = false;
+
+  networking.hostName = "beacon";
+  networking.firewall.allowedTCPPorts = [ 22 ];
+  programs.nix-ld.enable = true;
+  time.timeZone = "Asia/Jerusalem";
+
+  # GPU is exposed through WSL2 paravirtualization; no Linux NVIDIA KM needed
+  hardware.graphics.enable = true;
+
+  services.openssh = {
+    enable = true;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = false;
+    };
+  };
+
+  users.users.aner = {
+    isNormalUser = true;
+    extraGroups = ["wheel" "video"];
+    openssh.authorizedKeys.keys = [
+      "ssh-rsa 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 cardno:29_109_265"
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    git
+    rsync
+    tmux
+    vim
+    wget
+    rclone
+    pciutils
+    nvtopPackages.nvidia
+    cudaPackages.cudatoolkit
+    cudaPackages.cudnn
+    cudaPackages.nccl
+    python3
+    direnv
+  ];
+
+  azos.attic.enable = true;
+
+  system.stateVersion = "25.11";
+}

nixos/configuration-beacon.nix

@@ -28,7 +28,7 @@
   nixpkgs.config.cudaSupport = true;
 
   nix.settings = {
-    experimental-features = "nix-command flakes";
+    experimental-features = ["nix-command" "flakes"];
     auto-optimise-store = true;
     substituters = [
       "https://cache.nixos.org"

nixos/configuration-vm.nix

@@ -47,7 +47,7 @@
     config.nix.registry;
 
   nix.settings = {
-    experimental-features = "nix-command flakes";
+    experimental-features = ["nix-command" "flakes"];
     auto-optimise-store = true;
   };
 

nixos/configuration.nix

@@ -20,12 +20,15 @@
     suiteModules.nixos.virtualization
     suiteModules.nixos.binfmt
     suiteModules.nixos.attic
+    suiteModules.nixos.printing
+    suiteModules.nixos.hardware-auth
   ];
 
   boot.loader.grub = {
     enable = true;
     efiSupport = true;
     device = "nodev";
+    configurationLimit = 5;
   };
   boot.loader.efi.canTouchEfiVariables = true;
 
@@ -80,12 +83,25 @@
   };
 
   nix.settings = {
-    experimental-features = "nix-command flakes";
+    experimental-features = ["nix-command" "flakes"];
     auto-optimise-store = true;
+    substituters = [
+      "https://cache.nixos.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+    ];
   };
 
   azos.suites.exwm.enable = true;
   azos.attic.enable = true;
+  azos.printing.enable = true;
+  azos.hardware-auth.enable = true;
+
+  # Needed for unprivileged FUSE mounts (e.g. rclone mount) -- without this,
+  # fusermount3 has no setuid wrapper and mounting fails with
+  # "Operation not permitted" even though /dev/fuse itself is world-writable.
+  programs.fuse.enable = true;
 
   home-manager = {
     extraSpecialArgs = {inherit inputs outputs suiteModules pkgs;};
@@ -108,7 +124,7 @@
         services.greetd.settings = lib.mkForce {
           terminal.vt = 1;
           default_session = {
-            command = "${pkgs.tuigreet}/bin/tuigreet --time --user-menu --cmd '/home/aner/.login.sh'";
+            command = "${pkgs.tuigreet}/bin/tuigreet --time --user-menu --user-menu-min-uid 1000 --user-menu-max-uid 29999 --cmd '/home/aner/.login.sh'";
             user = "greeter";
           };
           initial_session = {

overlays/default.nix

@@ -11,4 +11,14 @@
       config.allowUnfree = true;
     };
   };
+
+  # Shared silent presence check for the GPG smartcard (the YubiKey's OpenPGP
+  # applet): `gpg --card-status` only queries the reader, never invoking
+  # pinentry, so it's safe to poll without ever producing a "please insert
+  # card" prompt. Used by both the mail sync timer and the Nextcloud mount
+  # service to gate on `pass` being decryptable.
+  config.flake.overlayPkgs.azos-card-present = pkgs:
+    pkgs.writeShellScriptBin "azos-card-present" ''
+      exec ${pkgs.gnupg}/bin/gpg --card-status >/dev/null 2>&1
+    '';
 }

shells/default.nix

@@ -1,5 +1,3 @@
 {pkgs} @ args: {
-  #TODO since I do not pass along packages, this cannot work
-  # debugTex = import ./debugTex args;
   default = import ./defaultShell.nix args;
 }

shells/defaultShell.nix

@@ -2,9 +2,10 @@
 pkgs.mkShell {
   buildInputs = with pkgs; [
     alejandra
+    nh
     (pkgs.writeShellScriptBin
       "azos-lauretta-update"
-      "sudo nixos-rebuild switch --flake '.?submodules=1#lauretta'")
+      "nh os switch '.?submodules=1#lauretta'")
     (pkgs.writeShellScriptBin
       "azos-update-azos-core"
       "nix flake update --flake '.?submodules=1' azos-core")