diff --git a/hosts/server/hikari/hako/default.nix b/hosts/server/hikari/hako/default.nix
index a0c4771..97ea8f4 100644
--- a/hosts/server/hikari/hako/default.nix
+++ b/hosts/server/hikari/hako/default.nix
@@ -13,6 +13,7 @@ nixpkgs.lib.nixosSystem {
     ./services/forgejo.nix
     ./services/immich.nix
     ./services/attic.nix
+    ./services/helium-services.nix
     ./services/api.nix
     ./services/caddy.nix
     ./services/postgresql.nix
diff --git a/hosts/server/hikari/hako/services/attic.nix b/hosts/server/hikari/hako/services/attic.nix
index 4ae3d7e..eb6568e 100644
--- a/hosts/server/hikari/hako/services/attic.nix
+++ b/hosts/server/hikari/hako/services/attic.nix
@@ -10,7 +10,7 @@
 
       jwt = { };
 
-      database.url = "postgresql:///attic";
+      database.url = "postgresql:///attic?user=atticd";
 
       storage = {
         type = "local";
diff --git a/hosts/server/hikari/hako/services/helium-services.nix b/hosts/server/hikari/hako/services/helium-services.nix
new file mode 100644
index 0000000..e2c9ffb
--- /dev/null
+++ b/hosts/server/hikari/hako/services/helium-services.nix
@@ -0,0 +1,221 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  hostname = "helium-services.imnya.ng";
+  source = pkgs.fetchFromGitHub {
+    owner = "imputnet";
+    repo = "helium-services";
+    rev = "01c0515a27948a34dd0d4fd67c6014020fb52d0a";
+    hash = "sha256-OSG92YpI7jLxvtBqsK1lfGrWRFREXGVyw+Q9C92FjEI=";
+  };
+
+  dictionaries = pkgs.stdenvNoCC.mkDerivation {
+    pname = "helium-services-dictionaries";
+    version = "2026-08-26";
+    src = pkgs.fetchurl {
+      url = "https://chromium.googlesource.com/chromium/deps/hunspell_dictionaries/+archive/cccf64a8acc951afe3f47fee023908e55699bc58.tar.gz";
+      hash = "sha256-KMVNa0XsR9BXJzW6d7/D6AzAGErRVRGPU9CjjTIvyv0=";
+    };
+
+    dontUnpack = true;
+    installPhase = ''
+      mkdir -p "$out"
+      tar --extract --gzip --file "$src" --directory "$out"
+    '';
+  };
+
+  serviceUser = "helium-services";
+  stateDirectory = "/var/lib/helium-services";
+  hmacSecretFile = "${stateDirectory}/extension-proxy.env";
+  deno = "${pkgs.deno}/bin/deno";
+
+  initializeSecret = pkgs.writeShellApplication {
+    name = "initialize-helium-services-secret";
+    runtimeInputs = [ pkgs.coreutils pkgs.openssl ];
+    text = ''
+      set -eu
+
+      install -d -o ${serviceUser} -g ${serviceUser} -m 0750 ${stateDirectory}
+
+      if [ ! -s ${hmacSecretFile} ]; then
+        secret_file="$(mktemp ${stateDirectory}/.extension-proxy.env.XXXXXX)"
+        trap 'rm -f "$secret_file"' EXIT
+        umask 077
+        printf 'HMAC_SECRET=%s\n' "$(openssl rand -hex 32)" > "$secret_file"
+        chown ${serviceUser}:${serviceUser} "$secret_file"
+        chmod 0400 "$secret_file"
+        mv "$secret_file" ${hmacSecretFile}
+        trap - EXIT
+      fi
+    '';
+  };
+
+  mkDenoService =
+    {
+      description,
+      port,
+      configFile,
+      mainFile,
+      allowEnv,
+      environment,
+      cacheDirectory,
+      parallel ? false,
+      environmentFile ? null,
+      requiresSecret ? false,
+    }:
+    {
+      description = description;
+      wantedBy = [ "multi-user.target" ];
+      wants = [ "network-online.target" ];
+      after = [ "network-online.target" ] ++ lib.optional requiresSecret "helium-services-secret.service";
+      requires = lib.optional requiresSecret "helium-services-secret.service";
+
+      environment = environment // {
+        DENO_DIR = "/var/cache/${cacheDirectory}";
+        DENO_NO_UPDATE_CHECK = "1";
+      };
+
+      serviceConfig = {
+        User = serviceUser;
+        Group = serviceUser;
+        WorkingDirectory = stateDirectory;
+
+        StateDirectory = "helium-services";
+        StateDirectoryMode = "0750";
+        CacheDirectory = cacheDirectory;
+        CacheDirectoryMode = "0750";
+
+        ExecStartPre = [ "${deno} cache --config=${configFile} --frozen ${mainFile}" ];
+        ExecStart =
+          "${deno} serve --config=${configFile} --frozen --cached-only --host=127.0.0.1 "
+          + "--port=${toString port} --allow-net --allow-env=${allowEnv} "
+          + lib.optionalString parallel "--parallel "
+          + mainFile;
+
+        EnvironmentFile = lib.optional (environmentFile != null) environmentFile;
+        Restart = "always";
+        RestartSec = 5;
+        TimeoutStopSec = 15;
+        UMask = "0077";
+
+        NoNewPrivileges = true;
+        PrivateDevices = true;
+        PrivateTmp = true;
+        ProtectHome = true;
+        ProtectSystem = "strict";
+        RestrictAddressFamilies = [
+          "AF_INET"
+          "AF_INET6"
+          "AF_UNIX"
+        ];
+      };
+    };
+in
+{
+  users.groups.${serviceUser} = { };
+  users.users.${serviceUser} = {
+    isSystemUser = true;
+    group = serviceUser;
+  };
+
+  systemd.services.helium-services-secret = {
+    description = "Initialize the Helium Services extension signing secret";
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${initializeSecret}/bin/initialize-helium-services-secret";
+      RemainAfterExit = true;
+    };
+  };
+
+  systemd.services.helium-extension-proxy = mkDenoService {
+    description = "Helium Services extension proxy";
+    port = 18080;
+    configFile = "${source}/svc/extension-proxy/deno.json";
+    mainFile = "${source}/svc/extension-proxy/main.ts";
+    allowEnv = "HMAC_SECRET,PROXY_BASE_URL";
+    environment = {
+      PROXY_BASE_URL = "https://${hostname}/ext/";
+    };
+    cacheDirectory = "helium-services-ext";
+    environmentFile = hmacSecretFile;
+    parallel = true;
+    requiresSecret = true;
+  };
+
+  systemd.services.helium-extension-proxy-backup = mkDenoService {
+    description = "Helium Services backup extension proxy";
+    port = 18081;
+    configFile = "${source}/svc/extension-proxy/deno.json";
+    mainFile = "${source}/svc/extension-proxy/main.ts";
+    allowEnv = "HMAC_SECRET,PROXY_BASE_URL";
+    environment = {
+      PROXY_BASE_URL = "https://${hostname}/ext/";
+    };
+    cacheDirectory = "helium-services-ext-backup";
+    environmentFile = hmacSecretFile;
+    parallel = true;
+    requiresSecret = true;
+  };
+
+  systemd.services.helium-ubo = mkDenoService {
+    description = "Helium Services uBlock Origin proxy";
+    port = 18082;
+    configFile = "${source}/svc/ubo/deno.json";
+    mainFile = "${source}/svc/ubo/main.ts";
+    allowEnv = "UBO_*";
+    environment = {
+      UBO_PROXY_BASE_URL = "https://${hostname}/ubo/";
+    };
+    cacheDirectory = "helium-services-ubo";
+  };
+
+  services.caddy.virtualHosts."${hostname}".extraConfig = ''
+    @root path /
+    redir @root https://helium.computer 302
+
+    @robots path /robots.txt
+    header @robots Content-Type "text/plain; charset=utf-8"
+    respond @robots "User-agent: *\nDisallow: /" 200
+
+    @connectivity path /connectivitycheck
+    respond @connectivity 204
+
+    @bangs path /bangs.json
+    handle @bangs {
+      root * ${source}/svc/bangs
+      header {
+        Access-Control-Allow-Origin "*"
+        Cache-Control "public, max-age=86400, stale-if-error=604800"
+      }
+      file_server
+    }
+
+    @dictionaries path /dict /dict/*
+    handle @dictionaries {
+      root * ${dictionaries}
+      file_server browse
+    }
+
+    handle_path /ext/* {
+      reverse_proxy 127.0.0.1:18080 127.0.0.1:18081 {
+        lb_policy first
+      }
+    }
+
+    @com path /com /com/*
+    handle @com {
+      reverse_proxy 127.0.0.1:18080 127.0.0.1:18081 {
+        lb_policy first
+      }
+    }
+
+    handle_path /ubo/* {
+      reverse_proxy 127.0.0.1:18082
+    }
+  '';
+}
diff --git a/wow b/wow
new file mode 100644
index 0000000..e69de29