Many changes by GLM

AGENTS.md

@@ -28,7 +28,7 @@ nix flake lock --update-input X    # Update specific input
 
 ### Dev Shell & REPL
 ```bash
-nix develop .#shells.x86_64-linux.debugTexShell
+nix develop .#shells.x86_64-linux.default
 nix repl
 :lf .
 ```
@@ -45,7 +45,7 @@ alejandra .
 
 Manual VM testing:
 ```bash
-nix build .#nixosConfigurations.vm.config.system.build.vm
+nix build '.?submodules=1#nixosConfigurations.vm.config.system.build.vm'
 ./result/bin/run-nixos-vm
 ```
 
@@ -55,6 +55,9 @@ nix build .#nixosConfigurations.vm.config.system.build.vm
 - **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)
 
 ### Nix Module Template
 
@@ -70,6 +73,7 @@ nix build .#nixosConfigurations.vm.config.system.build.vm
 in {
   options.azos.<module-name>.enable = lib.mkOption {
     default = true;
+    example = true;
     type = lib.types.bool;
   };
 
@@ -83,6 +87,7 @@ in {
 - 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`)
 
 ### Formatting
@@ -93,10 +98,11 @@ in {
 ### 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
 
 ### Option Patterns
-- Boolean enable: `lib.mkOption { default = true; type = lib.types.bool; }`
+- Boolean enable: `lib.mkOption { default = true; example = true; type = lib.types.bool; }`
 - Conditional config: `lib.mkIf isEnabled { ... }`
 - User-overridable: `lib.mkDefault`
 - Force value: `lib.mkForce` (sparingly)
@@ -105,6 +111,30 @@ in {
 - Home-manager: `home.packages`, `home.file`, `programs.<program>`
 - NixOS: `config.services`, `environment.systemPackages`
 
+### 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;`
+
+### Specializations
+NixOS supports specializations for alternative configurations:
+```nix
+specialisation = {
+  hyprland = {
+    configuration = {
+      home-manager.users.aner = {pkgs, ...}: {
+        azos.suites.exwm.enable = lib.mkForce false;
+        azos.suites.hyprland.enable = true;
+      };
+    };
+  };
+};
+```
+
 ## Adding New Modules
 
 1. Create file in `modules/home-manager/` or `modules/nixos/`
@@ -119,6 +149,7 @@ in {
 | `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 |
 | `nixos/configuration-vm.nix` | Test VM config |
 | `overlays/` | Custom package overlays |
@@ -132,3 +163,7 @@ in {
 **Add home-manager package**: Edit module, add to `home.packages = with pkgs; [ pkg ]`
 
 **Add system service**: Edit NixOS module, add under `services.<service>`
+
+**Add custom package**: Create file in `pkgs/`, add to `pkgs/default.nix`, use via overlay
+
+**Access unstable packages**: Use `pkgs.unstable.<package>` (via unstable-packages overlay)

flake.lock

@@ -3,7 +3,8 @@
     "azos-core": {
       "inputs": {
         "cabata": "cabata",
-        "nixpkgs": "nixpkgs_2"
+        "nix-search-cli": "nix-search-cli",
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "path": "./azos-core",
@@ -35,6 +36,22 @@
         "type": "github"
       }
     },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": [
@@ -57,6 +74,21 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1676283394,
+        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -64,11 +96,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1773264488,
+        "lastModified": 1774559029,
-        "narHash": "sha256-rK0507bDuWBrZo+0zts9bCs/+RRUEHuvFE5DHWPxX/Q=",
+        "narHash": "sha256-deix7yg3j6AhjMPnFDCmWB3f83LsajaaULP5HH2j34k=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "5c0f63f8d55040a7eed69df7e3fcdd15dfb5a04c",
+        "rev": "a0bb0d11514f92b639514220114ac8063c72d0a3",
         "type": "github"
       },
       "original": {
@@ -80,7 +112,7 @@
     },
     "musnix": {
       "inputs": {
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": "nixpkgs_4"
       },
       "locked": {
         "lastModified": 1773185476,
@@ -96,13 +128,49 @@
         "type": "github"
       }
     },
+    "nix-filter": {
+      "locked": {
+        "lastModified": 1710156097,
+        "narHash": "sha256-1Wvk8UP7PXdf8bCCaEoMnOT1qe5/Duqgj+rL8sRQsSM=",
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "rev": "3342559a24e85fc164b295c3444e8a139924675b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "type": "github"
+      }
+    },
+    "nix-search-cli": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils_2",
+        "nix-filter": "nix-filter",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1762187737,
+        "narHash": "sha256-NGL9jj4y16+d0Es7aK1oxqAimZn7sdJDAxVkcY3CTcg=",
+        "owner": "peterldowns",
+        "repo": "nix-search-cli",
+        "rev": "ab0d5156c1e3b383c250ff273639cd3dea6de2d9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "peterldowns",
+        "repo": "nix-search-cli",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1773533765,
+        "lastModified": 1774567711,
-        "narHash": "sha256-qonGfS2lzCgCl59Zl63jF6dIRRpvW3AJooBGMaXjHiY=",
+        "narHash": "sha256-uVlOHBvt6Vc/iYNJXLPa4c3cLXwMllOCVfAaLAcphIo=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "f8e82243fd601afb9f59ad230958bd073795cbfe",
+        "rev": "3f6f874dfc34d386d10e434c48ad966c4832243e",
         "type": "github"
       },
       "original": {
@@ -128,11 +196,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1773389992,
+        "lastModified": 1774386573,
-        "narHash": "sha256-wvfdLLWJ2I9oEpDd9PfMA8osfIZicoQ5MT1jIwNs9Tk=",
+        "narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c06b4ae3d6599a672a6210b7021d699c351eebda",
+        "rev": "46db2e09e1d3f113a13c0d7b81e2f221c63b8ce9",
         "type": "github"
       },
       "original": {
@@ -144,11 +212,26 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1773507054,
+        "lastModified": 1761752004,
-        "narHash": "sha256-Q8U5VXgrcxmCxPtCCJCIZkcAX3FCZwGh1GNVIXxMND0=",
+        "narHash": "sha256-z83uhYagfW6ZnH5Svvaxx6O0a305sBLGCCJZBJnMD9w=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ddf56acbeb53825b79b82c13a657806774bfd137",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1774273680,
+        "narHash": "sha256-a++tZ1RQsDb1I0NHrFwdGuRlR5TORvCEUksM459wKUA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e80236013dc8b77aa49ca90e7a12d86f5d8d64c9",
+        "rev": "fdc7b8f7b30fdbedec91b71ed82f36e1637483ed",
         "type": "github"
       },
       "original": {
@@ -156,7 +239,7 @@
         "type": "indirect"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1772198003,
         "narHash": "sha256-I45esRSssFtJ8p/gLHUZ1OUaaTaVLluNkABkk6arQwE=",
@@ -172,13 +255,13 @@
         "type": "github"
       }
     },
-    "nixpkgs_4": {
+    "nixpkgs_5": {
       "locked": {
-        "lastModified": 1773507054,
+        "lastModified": 1774273680,
-        "narHash": "sha256-Q8U5VXgrcxmCxPtCCJCIZkcAX3FCZwGh1GNVIXxMND0=",
+        "narHash": "sha256-a++tZ1RQsDb1I0NHrFwdGuRlR5TORvCEUksM459wKUA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e80236013dc8b77aa49ca90e7a12d86f5d8d64c9",
+        "rev": "fdc7b8f7b30fdbedec91b71ed82f36e1637483ed",
         "type": "github"
       },
       "original": {
@@ -194,7 +277,7 @@
         "home-manager": "home-manager",
         "musnix": "musnix",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_4",
+        "nixpkgs": "nixpkgs_5",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },

flake.nix

@@ -73,6 +73,6 @@
 
     #TODO this is probably unsupported
     #TODO the devshells do not know of the new packages.
-    devShells = forAllSystems (system: ((import ./shells) {pkgs = nixpkgs.legacyPackages.${system}; }));
+    devShells = forAllSystems (system: ((import ./shells) {pkgs = nixpkgs.legacyPackages.${system};}));
   };
 }

modules/home-manager/chromium.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.chromium.enable;
-in {
-  options.azos.chromium.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      chromium
-    ];
-  };
-}

modules/home-manager/default.nix

@@ -1,26 +1,20 @@
 {
   imports = [
-    ./zoom.nix
-    ./ytdl.nix
-    ./mail.nix
-    ./encryption.nix
-    ./kubernetes.nix
-    ./git.nix
-    ./mpris-proxy.nix
-    ./qutebrowser-config.nix
     ./audio.nix
-    ./reaper.nix
+    ./encryption.nix
-    ./discord.nix
+    ./git.nix
-    ./spotify.nix
     ./headphones-whmx4000.nix
-    ./deluge.nix
-    ./lauretta-emacs.nix
-    ./gimp.nix
-    # ./printing.nix
-    ./libreoffice.nix
-    ./chromium.nix
     ./hyprland-suite.nix
-    # ./gnuradio.nix
+    ./kubernetes.nix
+    ./lauretta-emacs.nix
+    ./mail.nix
+    ./mpris-proxy.nix
     ./opencode.nix
+    # ./printing.nix
+    # ./gnuradio.nix
+    ./qutebrowser-config.nix
+    ./reaper.nix
+    ./snx-rs.nix
+    ./ytdl.nix
   ];
 }

modules/home-manager/deluge.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.deluged.enable;
-in {
-  options.azos.deluged.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      deluged
-    ];
-  };
-}

modules/home-manager/discord.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.discord.enable;
-in {
-  options.azos.discord.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      discord
-    ];
-  };
-}

modules/home-manager/gimp.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.gimp.enable;
-in {
-  options.azos.gimp.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      gimp3
-    ];
-  };
-}

modules/home-manager/git.nix

@@ -33,7 +33,6 @@ in {
           email = "aner@zakobar.com";
         };
       };
-
     };
     home.file.".config/pass-git-helper/git-pass-mapping.ini".source =
       ./pass-git-mapping.ini;

modules/home-manager/headphones-whmx4000.nix

@@ -15,9 +15,9 @@ in {
 
   config = lib.mkIf isEnabled {
     home.packages = with pkgs; [
-        ( pkgs.writeShellScriptBin
+      (pkgs.writeShellScriptBin
         "azos-connect-headphones-whmx4000"
-          "echo \"connect AC:80:0A:AF:E1:C2\" | bluetoothctl" )
+        "echo \"connect AC:80:0A:AF:E1:C2\" | bluetoothctl")
     ];
   };
 }

modules/home-manager/hyprland-suite.nix

@@ -54,6 +54,5 @@ in {
     #         StandardError = "journal";
     #     };
     # };
-
   };
 }

modules/home-manager/lauretta-emacs.nix

@@ -17,5 +17,7 @@ in {
 
     #Base emacs suite definition
     azos.emacs.pkgs = [pkgs.azos-emacs-lauretta];
+
+    home.packages = with pkgs; [pkgs.nix-search-cli];
   };
 }

modules/home-manager/libreoffice.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.libreoffice.enable;
-in {
-  options.azos.libreoffice.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      libreoffice
-    ];
-  };
-}

modules/home-manager/opencode.nix

@@ -14,8 +14,6 @@ in {
   };
 
   config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
+    programs.opencode.enable = true;
-      opencode
-    ];
   };
 }

modules/home-manager/snx-rs.nix

@@ -0,0 +1,63 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}: let
+  isEnabled =
+    config.azos.snx-rs.enable;
+  cfg = config.azos.snx-rs;
+in {
+  options.azos.snx-rs = {
+    enable = lib.mkOption {
+      default = true;
+      type = lib.types.bool;
+    };
+    server = lib.mkOption {
+      default = "vpn.bgu.ac.il";
+      type = lib.types.str;
+      description = "VPN server address";
+    };
+    username = lib.mkOption {
+      default = "anerz@vpn";
+      type = lib.types.str;
+      description = "VPN username";
+    };
+    loginType = lib.mkOption {
+      default = "vpn";
+      type = lib.types.str;
+      description = "Login type (e.g., vpn, vpn_Microsoft_Authenticator)";
+    };
+    ignoreServerCert = lib.mkOption {
+      default = true;
+      type = lib.types.bool;
+      description = "Ignore server certificate validation";
+    };
+  };
+
+  config = lib.mkIf isEnabled {
+    home.packages = with pkgs; [
+      snx-rs
+      (pkgs.writeShellScriptBin "snx-connect" ''
+        #!/bin/sh
+        sudo ${pkgs.snx-rs}/bin/snx-rs -m command &
+        sleep 1
+        ${pkgs.snx-rs}/bin/snxctl connect
+      '')
+      (pkgs.writeShellScriptBin "snx-disconnect" ''
+        #!/bin/sh
+        ${pkgs.snx-rs}/bin/snxctl disconnect
+        pkill -x snx-rs 2>/dev/null || true
+      '')
+    ];
+
+    home.file.".config/snx-rs/snx-rs.conf" = {
+      text = ''
+        server-name = ${cfg.server}
+        user-name = ${cfg.username}
+        login-type = ${cfg.loginType}
+        ignore-server-cert = ${lib.boolToString cfg.ignoreServerCert}
+      '';
+    };
+  };
+}

modules/home-manager/spotify.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.spotify.enable;
-in {
-  options.azos.spotify.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      spotify
-    ];
-  };
-}

modules/home-manager/ytdl.nix

@@ -5,7 +5,7 @@
   ...
 }: let
   isEnabled =
-    config.azos.discord.enable;
+    config.azos.ytdl.enable;
 in {
   options.azos.ytdl.enable = lib.mkOption {
     default = true;

modules/home-manager/zoom.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
-  isEnabled =
-    config.azos.zoom.enable;
-in {
-  options.azos.zoom.enable = lib.mkOption {
-    default = true;
-    example = true;
-    type = lib.types.bool;
-  };
-
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      zoom-us
-    ];
-  };
-}

modules/nixos/default.nix

@@ -1,3 +1,3 @@
 {
-  imports = [./audio.nix ./bluetooth.nix ./steam.nix ./virtualization.nix ];
+  imports = [./audio.nix ./bluetooth.nix ./steam.nix ./virtualization.nix];
 }

modules/nixos/virtualization.nix

@@ -33,10 +33,8 @@ in {
       virt-viewer # Spice/VNC client that virt‑manager calls under the hood
     ];
 
-
     services.spice-vdagentd.enable = true; # makes copy‑paste & auto‑resize work in Spice windows
-    networking.firewall.allowedTCPPorts = [ 5900 5901 ];   # Spice ports (adjust if you expose elsewhere)
+    networking.firewall.allowedTCPPorts = [5900 5901]; # Spice ports (adjust if you expose elsewhere)
-    networking.firewall.allowedUDPPorts = [ 5900 5901 ];
+    networking.firewall.allowedUDPPorts = [5900 5901];
-
   };
 }

nixos/configuration-vm.nix

@@ -86,7 +86,7 @@
         # TODO: Add your SSH public key(s) here, if you plan on using SSH to connect
       ];
       # TODO: Be sure to add any other groups you need (such as networkmanager, audio, docker, etc)
-      extraGroups = ["wheel" "libvirtd" ];
+      extraGroups = ["wheel" "libvirtd"];
     };
   };
 

nixos/configuration.nix

@@ -97,7 +97,7 @@
     hyprland = {
       configuration = {
         # Override home‑manager options for this specialization
-        home-manager.users.aner = { pkgs, ... }: {
+        home-manager.users.aner = {pkgs, ...}: {
           azos.suites.exwm.enable = lib.mkForce false;
           azos.suites.hyprland.enable = true;
         };
@@ -105,7 +105,6 @@
     };
   };
 
-
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [

nixos/lauretta-hardware-configuration.nix

@@ -17,7 +17,7 @@
   boot.kernelModules = ["kvm-intel"];
   boot.extraModulePackages = [];
 
-  fileSystems."/" ={
+  fileSystems."/" = {
     device = "/dev/disk/by-uuid/d28f6c1d-f7ec-44a1-a59b-a598c7f136f7";
     fsType = "btrfs";
     options = ["subvol=@"];

pkgs/azos-emacs-lauretta.nix

@@ -2,7 +2,8 @@
   orgTrivialBuild,
   epkgs,
   pkgs,
-} : orgTrivialBuild {
+}:
+orgTrivialBuild {
   pname = "azos-emacs-lauretta";
   version = "0.1.6";
   src = ./elisp/azos-emacs-lauretta.org;

pkgs/elisp/azos-emacs-lauretta.org

@@ -1,3 +1,4 @@
+
 #+title: Aner's Emacs Lauretta Configuration
 #+property: header-args :results silent
 
@@ -31,6 +32,7 @@
 ** Agent Shell
 
 #+begin_src emacs-lisp
+(setq agent-shell-opencode-default-model-id "opencode/glm-5")
 (setq agent-shell-preferred-agent-config (agent-shell-opencode-make-agent-config))
 #+end_src
 
@@ -58,6 +60,75 @@
   (azos/audio/enable-tab-display))
 #+end_src
 
+** Nixpkgs Search
+
+#+begin_src emacs-lisp
+(defun azos/nixpkgs-parse-json-lines (str)
+  "Parse JSON Lines format (one JSON object per line) from STR."
+        (mapcar (lambda (line)
+                  (and (not (string-empty-p line))
+                       (string-match "^{" line)
+                       (condition-case nil
+                           (json-parse-string line)
+                         (error nil))))
+                (split-string (string-trim str) "\n" t)))
+
+(defun azos/nixpkgs-g (key hash)
+  "Get KEY from HASH table."
+  (when (hash-table-p hash)
+    (gethash key hash)))
+
+(defun azos/nixpkgs-search ()
+  "Search for a nixpkgs package and show its info."
+  (interactive)
+  (let* ((pattern (read-string "Search pattern: "))
+         (json-output (shell-command-to-string
+                       (format "nix-search --json --max-results 50 '%s'" pattern)))
+         (results (and json-output
+                       (not (string-empty-p json-output))
+                       (azos/nixpkgs-parse-json-lines json-output)))
+         (packages (delq nil (mapcar (lambda (item)
+                                       (let ((pname (azos/nixpkgs-g "package_pname" item)))
+                                         (when pname
+                                           (cons pname item))))
+                                     results))))
+    (if packages
+        (let* ((selected (completing-read "Package: " (mapcar #'car packages) nil t))
+               (package-data (cdr (assoc-string selected packages))))
+          (let ((buf (get-buffer-create "*nixpkgs-package-info*")))
+            (with-current-buffer buf
+              (erase-buffer)
+              (if package-data
+                  (progn
+                    (insert (format "Package: %s\n\n" selected))
+                    (insert (format "Version: %s\n" (or (azos/nixpkgs-g "package_pversion" package-data) "unknown")))
+                    (insert (format "Attr: %s\n" (or (azos/nixpkgs-g "package_attr_name" package-data) "unknown")))
+                    (insert (format "\nDescription: %s\n"
+                                   (or (azos/nixpkgs-g "package_description" package-data) "none")))
+                    (let ((programs (azos/nixpkgs-g "package_programs" package-data)))
+                      (when (vectorp programs)
+                        (insert (format "\nPrograms: %s\n"
+                                       (mapconcat #'identity (append programs nil) " ")))))
+                    (let ((homepage (let ((h (azos/nixpkgs-g "package_homepage" package-data)))
+                                      (when (vectorp h) (aref h 0)))))
+                      (when homepage
+                        (insert (format "\nHomepage: %s\n" homepage))))
+                    (let ((licenses (azos/nixpkgs-g "package_license" package-data)))
+                      (when (vectorp licenses)
+                        (insert (format "\nLicense: %s\n"
+                                       (mapconcat (lambda (l)
+                                                    (or (azos/nixpkgs-g "fullName" l) ""))
+                                                  (append licenses nil) ", ")))))
+                (insert (format "Package: %s\n\n" selected)
+                        "\nNo additional info available.")))
+              (goto-char (point-min)))
+            (display-buffer buf)))
+      (message "No packages found matching '%s'" pattern))))
+
+(define-key azos/global-minor-mode/open-keymap
+    (kbd "n") 'azos/nixpkgs-search)
+#+end_src
+
 * Provide
 
 #+begin_src emacs-lisp

shells/defaultShell.nix

@@ -1,14 +1,15 @@
 {pkgs} @ args:
-  pkgs.mkShell {
+pkgs.mkShell {
   buildInputs = with pkgs; [
-        ( pkgs.writeShellScriptBin
+    alejandra
+    (pkgs.writeShellScriptBin
       "azos-lauretta-update"
-                "sudo nixos-rebuild switch --flake .#lauretta" )
+      "sudo nixos-rebuild switch --flake .#lauretta")
-        ( pkgs.writeShellScriptBin
+    (pkgs.writeShellScriptBin
       "azos-update-azos-core"
-                "nix flake update azos-core" )
+      "nix flake update azos-core")
-        ( pkgs.writeShellScriptBin
+    (pkgs.writeShellScriptBin
       "azos-update"
-                "nix flake update" )
+      "nix flake update")
   ];
-  }
+}