fix: update compose submodule — remove stale COPY for deleted script

Updates the compose submodule to commit 3f82c9d on branch
fix/hermes-entrypoint-simple, which drops all custom entrypoint
scripts and uses the image's native s6-overlay profile supervision.

The five profiles (ashley, claire, finn, matt, paul) auto-start
on boot via the s6 reconciler reading their gateway_state.json.

AGENTS.md

@@ -5,6 +5,7 @@ This document outlines the development conventions for this NixOS-based infrastr
 ## Build & Deployment
 
 - **Build/Deploy:** Use `nixos-rebuild switch --flake .#<hostname>` to build and deploy the configuration for a specific host.
+- **CRITICAL — Validate before pushing:** Always `nix build --no-link '.#nixosConfigurations.<hostname>.config.system.build.toplevel'` (or `nh os build`) and confirm it succeeds before pushing any changes. Never push untested NixOS configs.
 - **Development Shell:** Activate the development environment with `nix develop`.
 
 ## Linting & Formatting

flake.lock

@@ -23,6 +23,38 @@
         "type": "github"
       }
     },
+    "argononed": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1729566243,
+        "narHash": "sha256-DPNI0Dpk5aym3Baf5UbEe5GENDrSmmXVdriRSWE+rgk=",
+        "owner": "nvmd",
+        "repo": "argononed",
+        "rev": "16dbee54d49b66d5654d228d1061246b440ef7cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "repo": "argononed",
+        "type": "github"
+      }
+    },
+    "argononed_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1729566243,
+        "narHash": "sha256-DPNI0Dpk5aym3Baf5UbEe5GENDrSmmXVdriRSWE+rgk=",
+        "owner": "nvmd",
+        "repo": "argononed",
+        "rev": "16dbee54d49b66d5654d228d1061246b440ef7cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "repo": "argononed",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -37,6 +69,54 @@
         "url": "https://git.lix.systems/lix-project/flake-compat/archive/main.tar.gz"
       }
     },
+    "flake-compat_2": {
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_3": {
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -144,6 +224,150 @@
         "type": "github"
       }
     },
+    "nixmate": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1771085058,
+        "narHash": "sha256-w9qE5zZ8mEHPbR84OuJoFWFvmMuKpvq/ANwyDUEvbPo=",
+        "owner": "daskladas",
+        "repo": "nixmate",
+        "rev": "9030841d4c3ec72359643d7af68bfdac428f1636",
+        "type": "github"
+      },
+      "original": {
+        "owner": "daskladas",
+        "repo": "nixmate",
+        "type": "github"
+      }
+    },
+    "nixos-images": {
+      "inputs": {
+        "nixos-stable": [
+          "nixos-raspberrypi",
+          "nixpkgs"
+        ],
+        "nixos-unstable": [
+          "nixos-raspberrypi",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1747747741,
+        "narHash": "sha256-LUOH27unNWbGTvZFitHonraNx0JF/55h30r9WxqrznM=",
+        "owner": "nvmd",
+        "repo": "nixos-images",
+        "rev": "cbbd6db325775096680b65e2a32fb6187c09bbb4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "ref": "sdimage-installer",
+        "repo": "nixos-images",
+        "type": "github"
+      }
+    },
+    "nixos-images_2": {
+      "inputs": {
+        "nixos-stable": [
+          "nixos-uconsole",
+          "nixos-raspberrypi",
+          "nixpkgs"
+        ],
+        "nixos-unstable": [
+          "nixos-uconsole",
+          "nixos-raspberrypi",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1747747741,
+        "narHash": "sha256-LUOH27unNWbGTvZFitHonraNx0JF/55h30r9WxqrznM=",
+        "owner": "nvmd",
+        "repo": "nixos-images",
+        "rev": "cbbd6db325775096680b65e2a32fb6187c09bbb4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "ref": "sdimage-installer",
+        "repo": "nixos-images",
+        "type": "github"
+      }
+    },
+    "nixos-raspberrypi": {
+      "inputs": {
+        "argononed": "argononed",
+        "flake-compat": "flake-compat_2",
+        "nixos-images": "nixos-images",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1779023229,
+        "narHash": "sha256-MInilg7B/06c34SwOuGSBho4l0H1EZcmvxTkSWCs5pE=",
+        "owner": "nvmd",
+        "repo": "nixos-raspberrypi",
+        "rev": "06c6e3513e1ee64b651913193fc6ac38aa4963f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "ref": "v1.20260517.0",
+        "repo": "nixos-raspberrypi",
+        "type": "github"
+      }
+    },
+    "nixos-raspberrypi_2": {
+      "inputs": {
+        "argononed": "argononed_2",
+        "flake-compat": "flake-compat_3",
+        "nixos-images": "nixos-images_2",
+        "nixpkgs": [
+          "nixos-uconsole",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1779023229,
+        "narHash": "sha256-MInilg7B/06c34SwOuGSBho4l0H1EZcmvxTkSWCs5pE=",
+        "owner": "nvmd",
+        "repo": "nixos-raspberrypi",
+        "rev": "06c6e3513e1ee64b651913193fc6ac38aa4963f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nvmd",
+        "ref": "v1.20260517.0",
+        "repo": "nixos-raspberrypi",
+        "type": "github"
+      }
+    },
+    "nixos-uconsole": {
+      "inputs": {
+        "nixos-raspberrypi": "nixos-raspberrypi_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1780333979,
+        "narHash": "sha256-yjp/gWRqWCxalYLe2+27gbxhttL+46Ozm7qvccpFbv4=",
+        "owner": "nixos-uconsole",
+        "repo": "nixos-uconsole",
+        "rev": "1e6a8dc51c7b26e15850688a0b01121c3fea4b30",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos-uconsole",
+        "repo": "nixos-uconsole",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1705033721,
@@ -177,6 +401,22 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1770562336,
+        "narHash": "sha256-ub1gpAONMFsT/GU2hV6ZWJjur8rJ6kKxdm9IlCT0j84=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "d6c71932130818840fc8fe9509cf50be8c64634f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1774386573,
         "narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
@@ -212,7 +452,31 @@
       "inputs": {
         "agenix": "agenix",
         "lix": "lix",
-        "nixpkgs": "nixpkgs_2"
+        "nixmate": "nixmate",
+        "nixos-raspberrypi": "nixos-raspberrypi",
+        "nixos-uconsole": "nixos-uconsole",
+        "nixpkgs": "nixpkgs_3"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixmate",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1770606655,
+        "narHash": "sha256-rpJf+kxvLWv32ivcgu8d+JeJooog3boJCT8J3joJvvM=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "11a396520bf911e4ed01e78e11633d3fc63b350e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     },
     "systems": {
@@ -229,6 +493,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -2,6 +2,7 @@
   description = "Gortium infra flake";
 
   inputs = {
+    nixmate.url = "github:daskladas/nixmate";
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     agenix = {
       url = "github:ryantm/agenix";
@@ -12,10 +13,18 @@
       url = "git+https://git.lix.systems/lix-project/lix?ref=main";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    nixos-uconsole = {
+      url = "github:nixos-uconsole/nixos-uconsole";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    nixos-raspberrypi = {
+      url = "github:nvmd/nixos-raspberrypi/v1.20260517.0";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     self.submodules = true;
   };
 
-  outputs = { self, nixpkgs, agenix, lix, ... }@inputs:
+  outputs = { self, nixmate, nixpkgs, agenix, lix, nixos-uconsole, nixos-raspberrypi, ... }@inputs:
     let
       system = "x86_64-linux";
       keys = import ./lib/keys.nix;
@@ -26,7 +35,11 @@
           "/etc/ssh/ssh_host_ed25519_key"
           "/root/.age/bootstrap.key" ];
       };
-      overlays = [ agenix.overlays.default ];
+      overlays = [
+        agenix.overlays.default
+        (import ./overlays/reticulum.nix)
+        (import ./overlays/nixmate.nix inputs)
+      ];
       pkgs = import nixpkgs {
         inherit system overlays;
         config.allowUnfree = true;
@@ -61,6 +74,7 @@
               ./modules/nixos/services/open_code_server.nix
               ./modules/nixos/services/ollama_init_custom_models.nix
               ./modules/nixos/services/openclaw_node.nix
+              ./modules/nixos/security/ai-worker-restricted.nix
               ./users/gortium.nix
               ./users/ai-worker.nix
             ];
@@ -79,6 +93,22 @@
               ./hosts/cyt-pi/hardware-configuration.nix
             ];
           };
+
+          uConsole = nixos-raspberrypi.lib.nixosSystem {
+            specialArgs = { inherit self keys paths inputs nixos-raspberrypi; };
+            modules = [
+              {
+                nixpkgs.overlays = overlays;
+                nixpkgs.config.allowUnfree = true;
+                nixpkgs.hostPlatform = "aarch64-linux";
+                nix.package = lix.packages."aarch64-linux".default;
+              }
+              nixos-raspberrypi.nixosModules.raspberry-pi-5.base
+              nixos-uconsole.nixosModules.uconsole-cm5
+              ./hosts/uConsole/configuration.nix
+              ./hosts/uConsole/hardware-configuration.nix
+            ];
+          };
         };
         devShells.${system}.default = devShell;
       };

hosts/lazyworkhorse/configuration.nix

@@ -11,6 +11,10 @@
   # Flakesss
   nix.settings.experimental-features = [ "nix-command" "flakes" "flake-self-attrs" ];
   nix.settings.trusted-users = [ "root" "gortium" ];
+  nix.settings.extra-platforms = [ "aarch64-linux" ];
+
+  # QEMU binfmt for cross-building aarch64 NixOS targets
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
 
   # Garbage collection
   nix.gc = {
@@ -36,7 +40,7 @@
     "transparent_hugepage=always" # because mucho ram
   ];
   # 2. Load the specific drivers found by sensors-detect
-  boot.kernelModules = [ "nct6775" "lm96163" ];
+  boot.kernelModules = [ "nct6775" "lm96163" "iptable_nat" "iptable_filter" ];
   # 3. Force the nct6775 driver to recognize the chip if it's stubborn
   boot.extraModprobeConfig = ''
     options nct6775 force_id=0xd280
@@ -49,6 +53,26 @@
   networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
   networking.hostId = "deadbeef";
 
+  # WireGuard VPN client -- always up, connects to wg-easy server
+  # Create age-encrypted secrets before deploying (run on the host):
+  #   echo -n "<private_key>" | agenix -e secrets/wireguard_private_key.age
+  #   echo -n "<preshared_key>" | agenix -e secrets/wireguard_preshared_key.age
+  networking.wireguard.interfaces = {
+    wg0 = {
+      ips = [ "10.8.0.3/24" ];
+      privateKeyFile = config.age.secrets.wireguard_private_key.path;
+      peers = [
+        {
+          publicKey = "rY9zII3AOm8rog2rv02PyA3Bq7zdvTOGkZapfCV1DkE=";
+          presharedKeyFile = config.age.secrets.wireguard_preshared_key.path;
+          allowedIPs = [ "10.8.0.0/24" ];
+          endpoint = "vpn.lazyworkhorse.net:51820";
+          persistentKeepalive = 25;
+        }
+      ];
+    };
+  };
+
   # Set your time zone.
   time.timeZone = "America/Montreal";
 
@@ -120,12 +144,14 @@
   # You can use https://Search.nixos.org/ to find more packages (and options).
   environment.systemPackages = with pkgs; [
     neovim
+    tmux
     docker-compose
     wget
     age
     agenix
     git
     nh
+    nixmate
     lm_sensors
     rocmPackages.rocminfo
     rocmPackages.rocm-smi
@@ -158,7 +184,7 @@
     settings = {
       PasswordAuthentication = false;
       KbdInteractiveAuthentication = false;
-      PermitRootLogin = "prohibit-password"; 
+      # Additional hardening settings below in SERVER HARDENING section
     };
     hostKeys = [
       {
@@ -187,6 +213,7 @@
     ai = {
       path = self + "/assets/compose/ai";
       envFile = config.age.secrets.containers_env.path;
+      ports = [ 22000 ];  # Syncthing TCP sync
     };
 
     cloudstorage = {
@@ -221,17 +248,16 @@
       path = self + "/assets/compose/homepage";
     };
 
+    vpn = {
+      path = self + "/assets/compose/vpn";
+      envFile = config.age.secrets.containers_env.path;
+    };
+
     # tak = {
     #   path = self + "/assets/compose/tak";
     # };
   };
 
-  services.opencode = {
-    enable = true;
-    port = 4099;
-    ollamaUrl = "http://127.0.0.1:11434/v1"; 
-  };
-  
   # Private host ssh key managed by agenix
   age = {
     identityPaths = paths.identities;
@@ -264,19 +290,23 @@
         mode = "0440";
         path = "/run/secrets/openclaw_gateway_token";
       };
+      wireguard_private_key = {
+        file = ../../secrets/wireguard_private_key.age;
+        owner = "root";
+        group = "root";
+        mode = "0400";
+        path = "/run/secrets/wireguard_private_key";
+      };
+      wireguard_preshared_key = {
+        file = ../../secrets/wireguard_preshared_key.age;
+        owner = "root";
+        group = "root";
+        mode = "0400";
+        path = "/run/secrets/wireguard_preshared_key";
+      };
     };
   };
 
-  # OpenClaw Node service (host-side execution for Docker gateway)
-  services.openclaw-node = {
-    enable = true;
-    user = "ai-worker";
-    gatewayHost = "127.0.0.1";
-    gatewayPort = 18789;
-    gatewayTokenFile = "/run/secrets/openclaw_gateway_token";
-    displayName = "lazyworkhorse-host";
-  };
-
   # Public host ssh key (kept in sync with the private one)
   environment.etc."ssh/ssh_host_ed25519_key.pub".text =
     "${keys.hosts.lazyworkhorse.main}";
@@ -308,6 +338,203 @@
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;
 
+  # =============================================================================
+  # SERVER HARDENING - Firewall, Fail2ban, SSH, Kernel
+  # =============================================================================
+  
+  # Firewall - default deny, explicit allow
+  networking.firewall = {
+    # Enable firewall with default deny policy (NixOS firewall denies all by default)
+    enable = true;
+    allowPing = true;
+    
+    # Only essential ports exposed to internet
+    allowedTCPPorts = [
+      2424  # SSH (non-standard port)
+      2222  # Gitea (version control)
+      80    # HTTP (Traefik redirect)
+      443   # HTTPS (Traefik)
+      # 8000  # Portainer - REVIEW: internal only?
+      # 4242  # Coms - REVIEW: internal only?
+      # 5000  # TAK API - REVIEW: internal only?
+      # 8087  # TAK Connect - REVIEW: internal only?
+      # 8089  # TAK Management - REVIEW: internal only?
+    ];
+    
+    allowedUDPPorts = [
+      51820 # WireGuard VPN
+    ];
+    
+    # Rate limiting and attack prevention
+    extraCommands = ''
+      # 1. Wipe the INPUT chain clean at the start of every activation
+      iptables -F INPUT
+      
+      # Rate limit SSH connections (max 20 new connections per 60 seconds)
+      iptables -A INPUT -p tcp --dport 2424 -m state --state NEW -m recent --set
+      iptables -A INPUT -p tcp --dport 2424 -m state --state NEW -m recent --update --seconds 60 --hitcount 20 -j DROP
+      
+      # Rate limit HTTP/HTTPS (protects Traefik)
+      iptables -A INPUT -p tcp --dport 80 -m state --state NEW -m limit --limit 25/minute --limit-burst 100 -j ACCEPT
+      iptables -A INPUT -p tcp --dport 443 -m state --state NEW -m limit --limit 25/minute --limit-burst 100 -j ACCEPT
+      
+      # Drop invalid packets
+      iptables -A INPUT -m state --state INVALID -j DROP
+      
+      # Log dropped packets (rate limited)
+      iptables -A INPUT -m limit --limit 5/min -j LOG --log-prefix "IPTables-Dropped: " --log-level 4
+
+      # 3. CRITICAL: Re-link the NixOS default firewall chain
+      # Without this line, the 'allowedTCPPorts' in your Nix config will be ignored!
+      iptables -A INPUT -j nixos-fw
+    '';
+  };
+
+  # Fail2ban - automatic IP banning
+  services.fail2ban = {
+    enable = true;
+    maxretry = 3;
+    bantime = "1h";
+    banaction = "iptables-multiport";
+    
+    jails = {
+      # SSH brute force protection (uses systemd journal backend)
+      sshd = {
+        enabled = true;
+        settings = {
+          filter = "sshd";
+          port = "2424";
+          maxretry = 3;
+          bantime = "1h";
+        };
+      };
+      
+      # Recidive - ban repeat offenders for 1 week
+      recidive = {
+        enabled = true;
+        settings = {
+          filter = "recidive";
+          logpath = "/var/log/fail2ban.log";
+          bantime = "1w";
+          findtime = "1d";
+          maxretry = 3;
+        };
+      };
+      
+      # HTTP authentication failures (Traefik)
+      http-auth = {
+        enabled = true;
+        settings = {
+          filter = "traefik-auth";
+          port = "80,443";
+          logpath = "/var/log/traefik/access.log";
+          maxretry = 5;
+          bantime = "1h";
+        };
+      };
+      
+      # HTTP scanning/attacks (Traefik)
+      http-botsearch = {
+        enabled = true;
+        settings = {
+          filter = "traefik-botsearch";
+          port = "80,443";
+          logpath = "/var/log/traefik/access.log";
+          maxretry = 2;
+          bantime = "2h";
+        };
+      };
+    };
+  };
+  
+  # Custom fail2ban filters for Traefik
+  environment.etc."fail2ban/filter.d/traefik-auth.conf".text = ''
+    [Definition]
+    failregex = ^<HOST> -.*"(GET|POST|HEAD|PUT|DELETE).*" (401|403) \d+.*$
+    ignoreregex =
+  '';
+  
+  environment.etc."fail2ban/filter.d/traefik-botsearch.conf".text = ''
+    [Definition]
+    failregex = ^<HOST> -.*"(GET|POST|HEAD|PUT|DELETE).*" 404 \d+.*$
+                ^<HOST> -.*"(GET|POST|HEAD|PUT|DELETE).*/(\.|wp-|php|admin|login|xmlrpc|\.env|\.git|\.aws|\.azure).*" \d+.*$
+    ignoreregex =
+  '';
+
+  # SSH hardening
+  services.openssh.settings = {
+    PermitRootLogin = "no";
+    MaxAuthTries = 3;
+    MaxSessions = 20;
+    LoginGraceTime = 30;
+    ClientAliveInterval = 300;
+    ClientAliveCountMax = 2;
+    PermitEmptyPasswords = "no";
+    ChallengeResponseAuthentication = "no";
+    UsePAM = true;
+    LogLevel = "VERBOSE";
+    X11Forwarding = false;
+    AllowTcpForwarding = "no";
+    AllowAgentForwarding = "no";
+    PermitTunnel = "no";
+  };
+
+  # Kernel network hardening
+  boot.kernel.sysctl = {
+    # IP Spoofing protection
+    "net.ipv4.conf.all.rp_filter" = 1;
+    "net.ipv4.conf.default.rp_filter" = 1;
+    
+    # Ignore ICMP broadcasts
+    "net.ipv4.icmp_echo_ignore_broadcasts" = 1;
+    
+    # Disable source routing
+    "net.ipv4.conf.all.accept_source_route" = 0;
+    "net.ipv4.conf.default.accept_source_route" = 0;
+    "net.ipv6.conf.all.accept_source_route" = 0;
+    "net.ipv6.conf.default.accept_source_route" = 0;
+    
+    # Disable redirects
+    "net.ipv4.conf.all.send_redirects" = 0;
+    "net.ipv4.conf.default.send_redirects" = 0;
+    
+    # SYN flood protection
+    "net.ipv4.tcp_syncookies" = 1;
+    "net.ipv4.tcp_max_syn_backlog" = 2048;
+    "net.ipv4.tcp_synack_retries" = 2;
+    "net.ipv4.tcp_syn_retries" = 5;
+    
+    # Log martian packets
+    "net.ipv4.conf.all.log_martians" = 1;
+    "net.ipv4.conf.default.log_martians" = 1;
+    
+    # Ignore redirects
+    "net.ipv4.conf.all.accept_redirects" = 0;
+    "net.ipv4.conf.default.accept_redirects" = 0;
+    "net.ipv4.conf.all.secure_redirects" = 0;
+    "net.ipv4.conf.default.secure_redirects" = 0;
+    "net.ipv6.conf.all.accept_redirects" = 0;
+    "net.ipv6.conf.default.accept_redirects" = 0;
+    
+    # Connection tuning
+    "net.core.somaxconn" = 4096;
+    "net.core.netdev_max_backlog" = 65536;
+    "net.ipv4.tcp_max_orphans" = 65536;
+    "net.ipv4.tcp_fin_timeout" = 15;
+    "net.ipv4.tcp_keepalive_time" = 300;
+    "net.ipv4.tcp_keepalive_probes" = 5;
+    "net.ipv4.tcp_keepalive_intvl" = 15;
+  };
+
+  # Audit logging
+  security.auditd.enable = true;
+  
+  # Fail2ban log directory
+  systemd.tmpfiles.rules = [
+    "d /var/log/fail2ban 0755 root root -"
+    "d /var/log/traefik 0755 root root -"
+  ];
+
   # Copy the NixOS configuration file and link it from the resulting system
   # (/run/current-system/configuration.nix). This is useful in case you
   # accidentally delete configuration.nix.

hosts/uConsole/configuration.nix

@@ -0,0 +1,171 @@
+{ config, lib, pkgs, paths, self, keys, ... }:
+
+{
+  # Basic Host Info
+  networking.hostName = "uConsole";
+  time.timeZone = "America/Montreal";
+  i18n.defaultLocale = "en_CA.UTF-8";
+
+  # System State
+  system.stateVersion = "25.05";
+
+  # Boot & Hardware (migrated to kernel bootloader per nixos-raspberrypi deprecation notice)
+  boot.loader.raspberry-pi.bootloader = "kernel";
+  # kernel managed by nixos-raspberrypi module — don't override, patches are version-specific
+  # boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  # Networking
+  networking.networkmanager.enable = true;
+  services.openssh = {
+    enable = true;
+    settings.PermitRootLogin = lib.mkForce "prohibit-password";
+    settings.PasswordAuthentication = lib.mkForce false;
+  };
+
+  # User
+  users.users.gortium = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "networkmanager" "video" "dialout" "kismet" ];
+    openssh.authorizedKeys.keys = [
+      keys.users.gortium.main
+      keys.users.gortium.gitea
+    ];
+  };
+  security.sudo.extraRules = [
+    {
+      users = [ "gortium" ];
+      commands = [
+        {
+          command = "ALL";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
+
+  # ============================================================
+  # Package groups
+  # ============================================================
+
+  environment.systemPackages = with pkgs; [
+    # ===== Base =====
+    emacs-pgtk
+    git
+    ripgrep
+    fd
+    htop
+    tmux
+    neovim
+
+    # ===== HAM Radio =====
+    js8call
+    wsjtx
+    fldigi
+    pat                        # Winlink client
+    direwolf                   # AX.25 packet modem
+    chirp                      # Radio programming tool
+    hamlib                     # Ham radio control libraries
+    trustedqsl                 # Logbook of the World (LoTW)
+
+    # ===== SDR / RF =====
+    sdrpp                      # SDR++ spectrum analyzer
+    gqrx                       # SDR receiver GUI
+    rtl-sdr                    # RTL-SDR drivers & utilities
+    inspectrum                # Offline signal analysis
+    soapysdr-with-plugins      # SoapySDR + hardware support plugins
+
+    # ===== Mesh / LoRa =====
+    meshtastic                 # Python CLI for Meshtastic devices
+    reticulumStack             # Reticulum Network Stack (rnsd, rnsh, rncp, rnx, rnpath, etc.)
+    lxmf                       # LXMF messaging protocol
+    nomadnet                   # Nomad Network client
+
+    # ===== Security =====
+    nmap
+    aircrack-ng
+    kismet                     # Wi-Fi monitor / IDS
+    bettercap                  # MITM/network attack framework
+    wireshark                  # Packet analyzer
+    hashcat                    # GPU password cracker
+    john                       # John the Ripper
+    sqlmap                     # SQL injection tool
+
+    # ===== GPS / Maps =====
+    foxtrotgps
+    viking                     # GPS map editor
+    gpsbabel                   # GPS data conversion
+  ];
+
+  # Packages noted but not in unstable nixpkgs:
+  #   - metasploit: unfree; install manually via Git clone
+  #   - burpsuite: unfree Java app (Community Edition available for download)
+  #   - sidechannel: not a distinct PyPI package; functionality covered by
+  #     the Reticulum stack. For LXMF GUI client, install Sideband manually
+  #     from github.com/markqvist/Sideband
+
+  # ============================================================
+  # Reticulum Service (rnsd)
+  # ============================================================
+  systemd.services.rnsd = {
+    description = "Reticulum Network Stack Daemon";
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      User = "gortium";
+      Group = "gortium";
+      ExecStart = "${pkgs.reticulumStack}/bin/rnsd";
+      Restart = "always";
+      RestartSec = "10s";
+      LimitNOFILE = 65536;
+    };
+  };
+
+  # ============================================================
+  # Kismet Service (Wi-Fi monitoring / mesh node)
+  # ============================================================
+  systemd.services.kismet = {
+    description = "Kismet Wi-Fi Monitor & IDS";
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      User = "gortium";
+      Group = "kismet";
+      ExecStart = "${pkgs.kismet}/bin/kismet -c wlan0 --log-base=/home/gortium/kismet_logs --no-nc-ui";
+      Restart = "always";
+      RestartSec = "10s";
+    };
+  };
+
+  # ============================================================
+  # Kernel modules for SDR and radio
+  # ============================================================
+  boot.kernelModules = [
+    "88x2bu"          # Realtek 8812/8821BU USB WiFi (common adapter)
+    "rtl8xxxu"        # RTL8188/8192/8723 USB WiFi
+    "rtl2832_sdr"     # RTL-SDR kernel module
+    "dvb_usb_rtl28xxu" # RTL-SDR DVB-T
+  ];
+
+  boot.blacklistedKernelModules = [ ];
+
+  # ============================================================
+  # Extra udev rules for SDR and HAM radio devices
+  # ============================================================
+  services.udev.packages = with pkgs; [ rtl-sdr ];
+
+  # ============================================================
+  # Enable IPv6 for Reticulum mesh
+  # ============================================================
+  networking.enableIPv6 = true;
+
+  # ============================================================
+  # Firewall: open ports for Reticulum (optional)
+  # ============================================================
+  networking.firewall.allowedTCPPorts = [ 22 ]; # SSH only
+  networking.firewall.allowedUDPPorts = [ ];
+  # Reticulum uses its own encryption and doesn't need open ports
+  # for basic mesh operations (peer-to-peer discovery).
+  # For TCP interfaces, open additional ports as needed.
+}

hosts/uConsole/hardware-configuration.nix

@@ -0,0 +1,26 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "usbhid" "usb_storage" "sdhci_pci" "nvme" ];
+  boot.initrd.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  # uConsole CM5 uses NVMe or eMMC for boot storage
+  # The uconsole-cm5 module sets up /boot/firmware and default /
+  # Override device label here if using different storage
+  fileSystems."/" = lib.mkDefault {
+    device = "/dev/disk/by-label/NIXOS_UCM5";
+    fsType = "ext4";
+    options = [ "noatime" ];
+  };
+
+  swapDevices = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+  hardware.enableRedistributableFirmware = true;
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+}

modules/nixos/security/README-ai-worker.md

@@ -0,0 +1,105 @@
+# AI Worker Restricted Access
+
+This module provides SSH access for the AI worker (hermes-agent) to run ollama benchmarks on the host.
+
+## Security Model
+
+The `ai-worker` user has:
+
+### Filesystem Access
+- **Home directory**: `/home/ai-worker` (standard user home)
+- **No bind mounts**: Cannot access `/home/gortium/infra` or other host files
+- **Cannot access**: Any files outside standard system paths
+
+### Sudo Access
+- **NONE**: ai-worker has no sudo privileges
+- Cannot run `nh`, `nixos-rebuild`, `nixpkgs-fmt`, or `nix` with elevated permissions
+
+### Docker Access
+- Member of `docker` group - can run `docker` and `docker exec` commands
+- Primary use: `docker exec ollama ollama ...` for benchmarking
+- Can run `docker exec --privileged ollama rocm-smi ...` for VRAM monitoring
+
+## Workflow: SSH + Docker Benchmarking
+
+The AI worker connects from the Hermes container to the host via SSH, runs ollama benchmarks, then returns to save results.
+
+### Example Workflow
+
+```bash
+# From Hermes container, SSH to host
+ssh -i /path/to/ssh/key ai-worker@host.docker.internal
+
+# On host, run ollama benchmarks via docker
+docker exec ollama ollama pull devstral-small-2:24b
+
+# Create test modelfile
+docker exec ollama bash -c 'cat <<EOF > /root/.ollama/test.modelfile
+FROM devstral-small-2:24b
+PARAMETER num_ctx 65536
+PARAMETER num_gpu 99
+PARAMETER flash_attn true
+EOF'
+
+# Create and test model
+docker exec ollama ollama create test-model -f /root/.ollama/test.modelfile
+docker exec ollama ollama run test-model "Write a Python async function"
+
+# Check VRAM usage
+docker exec --privileged ollama rocm-smi --showmeminfo vram
+
+# Cleanup
+docker exec ollama ollama rm test-model
+
+# Exit SSH, return to Hermes container
+exit
+
+# Save results in Hermes container
+# /opt/data/ai-optimizer/state.json
+# /opt/data/ai-optimizer/results.csv
+```
+
+## SSH Access
+
+Connect as:
+```bash
+ssh ai-worker@lazyworkhorse
+```
+
+The working directory will be `/home/ai-worker`. No infra repo access.
+
+## Verification
+
+Check ai-worker permissions:
+```bash
+# On the host, as root or gortium:
+sudo -u ai-worker sudo -l
+# Should show: no sudo access
+
+# Check docker group membership
+groups ai-worker
+# Should show: ai-worker docker
+```
+
+## Troubleshooting
+
+If ai-worker cannot run docker commands:
+```bash
+# Check docker group membership
+groups ai-worker
+
+# Verify ollama container is running
+docker ps | grep ollama
+
+# Test docker access
+sudo -u ai-worker docker exec ollama ollama list
+```
+
+If SSH connection fails:
+```bash
+# Check SSH key is authorized
+cat /home/ai-worker/.ssh/authorized_keys
+
+# Check SSH service
+systemctl status sshd
+```

modules/nixos/security/ai-worker-restricted.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+{
+  options.services.aiWorkerAccess = mkOption {
+    type = types.bool;
+    default = false;
+    description = "Enable AI worker SSH access with docker group membership for ollama benchmarking";
+  };
+
+  config = mkIf config.services.aiWorkerAccess {
+    # ai-worker is member of docker group - can run docker commands via SSH
+    # No bind mounts, no sudo access - docker-only for ollama benchmarking
+    users.groups.docker.members = [ "ai-worker" ];
+  };
+}

modules/nixos/services/ollama_init_custom_models.nix

@@ -1,67 +1,87 @@
 { pkgs, ... }: {
   systemd.services.init-ollama-model = {
     description = "Initialize LLM models with extra context in Ollama Docker";
-    after = [ "docker-ollama.service" ];
+    
+    # On s'assure que Docker tourne avant de lancer ce script
+    after = [ "docker.service" ];
     wantedBy = [ "multi-user.target" ];
+    
     script = ''
-      # Wait for Ollama
-      while ! ${pkgs.curl}/bin/curl -s http://localhost:11434/api/tags > /dev/null; do
-        sleep 2
-      done
+      # Fonction de création asynchrone pour ne pas bloquer le démarrage
+      (
+        echo "Starting asynchronous Ollama initialization..."
+        
+        # Attente d'Ollama (maximum 120 secondes pour éviter une boucle infinie)
+        TIMEOUT=60
+        COUNT=0
+        while ! ${pkgs.curl}/bin/curl -s -f http://127.0.0.1:11434/api/tags > /dev/null; do
+          if [ $COUNT -ge $TIMEOUT ]; then
+            echo "Ollama did not become ready in time. Exiting."
+            exit 1
+          fi
+          echo "Waiting for Ollama API to be reachable..."
+          sleep 5
+          COUNT=$((COUNT + 5))
+        done
 
-      create_model_if_missing() {
-        local model_name=$1
-        local base_model=$2
-        if ! ${pkgs.docker}/bin/docker exec ollama ollama list | grep -q "$model_name"; then
-          echo "$model_name not found, creating from $base_model..."
+        create_model_if_missing() {
+          local model_name=$1
+          local base_model=$2
           
-          # We use a custom TEMPLATE block to strip the 'currentDate' function 
-          # which is unsupported in Ollama 0.5.7 but present in Devstral's default manifest.
-          ${pkgs.docker}/bin/docker exec ollama sh -c "cat <<EOF > /root/.ollama/$model_name.modelfile
+          # Vérification robuste via l'API HTTP d'Ollama plutôt que docker exec (évite les conflits de tty)
+          if ! ${pkgs.curl}/bin/curl -s http://127.0.0.1:11434/api/tags | ${pkgs.jq}/bin/jq -e ".models[] | select(.name == \"$model_name\")" > /dev/null; then
+            echo "$model_name not found, creating from $base_model..."
+            
+            # Utilisation d'un fichier temporaire sur l'hôte pour l'injecter proprement dans Docker
+            TMP_FILE=$(mktemp)
+            cat <<EOF > "$TMP_FILE"
 FROM $base_model
-TEMPLATE \"\"\"{{- if .System }}
+TEMPLATE """{{- if .System }}
 [SYSTEM_PROMPT]
 {{ .System }}
 [/SYSTEM_PROMPT]
 {{- end }}
 {{- range .Messages }}
-{{- if eq .Role \"user\" }}
+{{- if eq .Role "user" }}
 [INST]
 {{ .Content }}
 [/INST]
-{{- else if eq .Role \"assistant\" }}
+{{- else if eq .Role "assistant" }}
 {{ .Content }}
 {{- end }}
-{{- end }}\"\"\"
+{{- end }}"""
 PARAMETER num_ctx 131072
 PARAMETER num_predict 4096
 PARAMETER num_keep 1024
 PARAMETER repeat_penalty 1.1
 PARAMETER top_k 40
-PARAMETER stop \"[INST]\"
-PARAMETER stop \"[/INST]\"
-PARAMETER stop \"</s>\"
-EOF"
-          ${pkgs.docker}/bin/docker exec ollama ollama create "$model_name" -f "/root/.ollama/$model_name.modelfile"
-          ${pkgs.docker}/bin/docker exec ollama rm "/root/.ollama/$model_name.modelfile"
-        else
-          echo "$model_name already exists, skipping."
-        fi
-      }
+PARAMETER stop "[INST]"
+PARAMETER stop "[/INST]"
+PARAMETER stop "</s>"
+EOF
 
-      # Create Nemotron
-      create_model_if_missing "nemotron-3-nano:30b-128k" "nemotron-3-nano:30b"
-      
-      # Create Devstral
-      create_model_if_missing "devstral-small-2:24b-128k" "devstral-small-2:24b" 
-      
-      # create_model_if_missing "qwen2.5-coder:32b-128k" "qwen2.5-coder:32b"
-      
-      # create_model_if_missing "mistral-large-planner:123b" "mistral-large:123b-instruct-v2407-q4_K_S"
+            # Copie et création dans le conteneur
+            ${pkgs.docker}/bin/docker cp "$TMP_FILE" ollama:/tmp/model.modelfile
+            ${pkgs.docker}/bin/docker exec ollama ollama create "$model_name" -f /tmp/model.modelfile
+            ${pkgs.docker}/bin/docker exec ollama rm /tmp/model.modelfile
+            rm -f "$TMP_FILE"
+          else
+            echo "$model_name already exists, skipping."
+          fi
+        }
+
+        # Create Nemotron
+        create_model_if_missing "nemotron-3-nano:30b-128k" "nemotron-3-nano:30b"
+        
+        # Create Devstral
+        create_model_if_missing "devstral-small-2:24b-128k" "devstral-small-2:24b" 
+        
+      ) &
     '';
+
     serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
+      Type = "forking"; # Permet à systemd de savoir que le script passe en arrière-plan via '&'
+      User = "root";
     };
   };
 }

overlays/nixmate.nix

@@ -0,0 +1,6 @@
+# ./overlays/nixmate.nix
+inputs: # We pass inputs here so the overlay can see the nixmate flake
+
+final: prev: {
+  nixmate = inputs.nixmate.packages.${prev.system}.default;
+}

overlays/reticulum.nix

@@ -0,0 +1,81 @@
+final: prev: let
+  python3 = final.python3;
+  pyPkgs = python3.pkgs;
+in {
+  reticulumStack = python3.pkgs.buildPythonApplication rec {
+    pname = "reticulum";
+    version = "1.2.9";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      pname = "rns";
+      inherit version;
+      sha256 = "554814231c237b9caacf8df669312e57dd7d3f84b6d4810125087d1a79a75d75";
+    };
+    propagatedBuildInputs = with pyPkgs; [ cryptography pyserial ];
+    doCheck = false;
+    pythonImportsCheck = [ "RNS" ];
+    meta = with final.lib; {
+      description = "Self-configuring, encrypted and resilient mesh networking stack";
+      homepage = "https://reticulum.network/";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  lxmf = python3.pkgs.buildPythonApplication rec {
+    pname = "lxmf";
+    version = "0.9.8";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "30f39f3a975a049c12ee2cfceb3261d24cb5adec881c6821f7354464b3f3650c";
+    };
+    propagatedBuildInputs = [ final.reticulumStack ];
+    doCheck = false;
+    pythonImportsCheck = [ "LXMF" ];
+    meta = with final.lib; {
+      description = "Lightweight Extensible Message Format for Reticulum";
+      homepage = "https://github.com/markqvist/lxmf";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  nomadnet = python3.pkgs.buildPythonApplication rec {
+    pname = "nomadnet";
+    version = "1.1.1";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "fa13b64a10e75b705a58024815ab72451700aa726af96d415ba99dec28dfc40a";
+    };
+    propagatedBuildInputs = with pyPkgs; [ final.reticulumStack final.lxmf urwid qrcode ];
+    doCheck = false;
+    pythonImportsCheck = [ "nomadnet" ];
+    meta = with final.lib; {
+      description = "Nomad Network — resilient mesh communications platform";
+      homepage = "https://github.com/markqvist/NomadNet";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  rnsh = python3.pkgs.buildPythonApplication rec {
+    pname = "rnsh";
+    version = "0.1.7";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "9cb72f25abb1c6d300f8014b264184ff78f592fe88e36094938012990b797c93";
+    };
+    propagatedBuildInputs = [ final.reticulumStack ];
+    doCheck = false;
+    pythonImportsCheck = [ "rnsh" ];
+    meta = with final.lib; {
+      description = "Remote shell over Reticulum";
+      homepage = "https://github.com/acehoss/rnsh";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+}

secrets/ai.age

@@ -0,0 +1,19 @@
+-----BEGIN AGE ENCRYPTED FILE-----
+YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IHNzaC1lZDI1NTE5IEdoTUQ4QSA2QUFR
+RmlnY2pYUFBHZGN3dzNpNVc0UW14V2NaVWZHWDJmcU1iWStsSHpJCnRYQUtEalNt
+SzFYWUF6VWRyYWF5VCtsSGduRU96MHA0WlI0b0lpUGFram8KLT4gM0stZ3JlYXNl
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+-----END AGE ENCRYPTED FILE-----

secrets/cloudstorage.age

@@ -0,0 +1,10 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+-----END AGE ENCRYPTED FILE-----

secrets/containers.env.age

@@ -1,34 +1,43 @@
 -----BEGIN AGE ENCRYPTED FILE-----
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+afmShsiIKw==
 -----END AGE ENCRYPTED FILE-----

secrets/homeautomation.age

@@ -0,0 +1,19 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+r7o=
+-----END AGE ENCRYPTED FILE-----

secrets/network.age

@@ -0,0 +1,12 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+-----END AGE ENCRYPTED FILE-----

secrets/secrets.nix

@@ -11,4 +11,8 @@ in
   "lazyworkhorse_host_ssh_key.age".publicKeys = authorizedKeys;
   "n8n_ssh_key.age".publicKeys = authorizedKeys;
   "openclaw_gateway_token.age".publicKeys = authorizedKeys;
+  "ai.age".publicKeys = authorizedKeys;
+  "cloudstorege.age".publicKeys = authorizedKeys;
+  "homeautomation.age".age".publicKeys = authorizedKeys;
+  "network.age".age".publicKeys = authorizedKeys;
 }

secrets/tak.age

@@ -0,0 +1,12 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+NXcvCHPVDUszhWvcoOsSpK6vaOnuY1B32/qExw==
+-----END AGE ENCRYPTED FILE-----

secrets/wireguard_preshared_key.age

@@ -0,0 +1,9 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+wDVB1LwC+Q==
+-----END AGE ENCRYPTED FILE-----

secrets/wireguard_private_key.age

@@ -0,0 +1,11 @@
+-----BEGIN AGE ENCRYPTED FILE-----
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+YB/F0dxSqgnq
+-----END AGE ENCRYPTED FILE-----

users/ai-worker.nix

@@ -9,6 +9,85 @@
     openssh.authorizedKeys.keys = [
       keys.users.ai-worker.main
     ];
+    # No password login - SSH key only
+    hashedPassword = "!";
   };
   users.groups.ai-worker = {};
+
+  # Enable restricted AI worker SSH access for ollama benchmarking
+  # SECURITY: ai-worker can only:
+  #   - SSH into host from Hermes container
+  #   - Run docker commands (docker exec ollama ...) via docker group
+  #   - Run specific security audit commands
+  #   - NO access to infra repo (no bind mount)
+  #   - NO sudo access (no nh, nixos-rebuild, nixpkgs-fmt, nix)
+  # WORKFLOW: SSH from Hermes container, run docker benchmarks, return and save results to /opt/data/ai-optimizer/
+  services.aiWorkerAccess = true;
+  
+  # Restricted sudo for ai-worker - security checks only
+  security.sudo.extraRules = [
+    {
+      users = [ "ai-worker" ];
+      commands = [
+        # Firewall checks
+        {
+          command = "/run/wrappers/bin/sudo iptables -L -n -v";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/wrappers/bin/sudo iptables -S";
+          options = [ "NOPASSWD" ];
+        }
+        # Fail2ban status
+        {
+          command = "/run/current-system/sw/bin/fail2ban-client status";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/fail2ban-client status *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/fail2ban-client get * banned";
+          options = [ "NOPASSWD" ];
+        }
+        # Log inspection
+        {
+          command = "/run/current-system/sw/bin/journalctl -t kernel -n 100";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/journalctl -u fail2ban -n 50";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/journalctl -u firewall -n 50";
+          options = [ "NOPASSWD" ];
+        }
+        # SSH config verification
+        {
+          command = "/run/current-system/sw/bin/sshd -T";
+          options = [ "NOPASSWD" ];
+        }
+        # Docker service checks
+        {
+          command = "/run/current-system/sw/bin/docker ps";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker inspect *";
+          options = [ "NOPASSWD" ];
+        }
+        # Network diagnostics
+        {
+          command = "/run/current-system/sw/bin/ss -tlnp";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/cat /proc/net/tcp";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
 }