diff --git a/README.md b/README.md
index 096f2f8..2b30747 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@
   - make sure that you have `pdo_sqlite`
   - oonix `chmod +x ./dev.sh` and then `./dev.sh`
   - uindos `cat ./dev.sh | iex` in poersel
+  - for production generate dist with `./bundle.sh`
 
 ### IMPORTANT
 
@@ -14,5 +15,7 @@
 - dx4dashboard
   - change `base` in `vite.config.ts`
   - change `API_BASE_URL` and `CLIENT_FRONTEND_URL` in `src/App.jsx`
-- backend
-  - change `ADMIN_PASS` and `API_PATH` in `admin_api.php`
\ No newline at end of file
+- **backend !!**
+  - change `ADMIN_PASS` and `API_PATH` in `admin_api.php`
+  - change `$password` in `adm/phpliteadmin.config.php`
+  - **block http requests to `data.db`!!!**
\ No newline at end of file
diff --git a/backend-php/.gitignore b/backend-php/.gitignore
index 0af5d57..0700963 100644
--- a/backend-php/.gitignore
+++ b/backend-php/.gitignore
@@ -1,4 +1,6 @@
 api.lock
 _api.lock
 
-data.db
\ No newline at end of file
+data.db
+dist
+k-api.updates.php
\ No newline at end of file
diff --git a/backend-php/admin_api.php b/backend-php/admin_api.php
index c58ef19..4473500 100644
--- a/backend-php/admin_api.php
+++ b/backend-php/admin_api.php
@@ -13,7 +13,7 @@ function db()
 };
 
 
-function relativePathToUrl($rel)
+function relativePathToUrl(string $rel)
 {
     $parts = explode('/', dirname($_SERVER['SCRIPT_NAME']) . '/' . $rel);
     $norm = [];
@@ -37,7 +37,7 @@ function FastDBReq(PDO $db, string $sql, array $params = []): array
     }
 }
 
-function Login($req)
+function Login(mixed $req)
 {
     return isset($req->data['pass']) && $req->data['pass'] == ADMIN_PASS;
 }
@@ -46,7 +46,7 @@ CreateApi(function ($api) {
     $api->on('/', 'GET', function ($req) {
         return 'hi';
     });
-    $api->on('/phpliteadmin', 'GET', function ($req) {
+    $api->on('/phpliteadmin', 'GET', function () {
         header('Location:  ./adm/phpliteadmin.php');
         return "";
     });
diff --git a/backend-php/api.php b/backend-php/api.php
index aa99092..fa27072 100644
--- a/backend-php/api.php
+++ b/backend-php/api.php
@@ -99,6 +99,8 @@ CreateApi(function ($api) {
         die($cnt);
     }
 
+    $api->useUpdates(db());
+
     $api->on('/', 'GET', function () {
         return 'dengi';
     });
diff --git a/backend-php/bundle.sh b/backend-php/bundle.sh
new file mode 100755
index 0000000..487f90e
--- /dev/null
+++ b/backend-php/bundle.sh
@@ -0,0 +1,23 @@
+set -e
+# copy only nessesary files
+
+echo "Copying files..."
+mkdir -p dist
+cp -r *.php sql-updates/ adm/ dist/
+
+set +e
+echo "Downloading phpLiteAdmin"
+wget -nc https://bitbucket.org/phpliteadmin/public/downloads/phpLiteAdmin_v1-9-8-2.zip
+unzip phpLiteAdmin_v1-9-8-2.zip phpliteadmin.php
+mv phpliteadmin.php dist/adm
+
+echo "Cleaning up"
+
+rm -f phpLiteAdmin_v1-9-8-2.zip 
+set -e
+rm -f dist/k-api.updates-status.php
+
+echo "
+
+
+Done."
\ No newline at end of file
diff --git a/backend-php/k-api.php b/backend-php/k-api.php
index 36d024c..3bbee44 100644
--- a/backend-php/k-api.php
+++ b/backend-php/k-api.php
@@ -1,4 +1,6 @@
 <?php
+const UPDATES_STATUS_FILE = "k-api.updates-status.php";
+const SQL_UPDATES_FOLDER = "./sql-updates";
 
 /** @param callable(_K_Api): void $apiFun */
 function CreateApi(callable $apiFun, bool $devmode = false)
@@ -66,13 +68,41 @@ class _K_Api
                     $_a = "unknown return type ($_type), (available bool, array, numeric, string)";
                 }
                 die("ERROR: " . $_a);
-                return;
             }
 
             return;
         }
     }
 
+    public function useUpdates(PDO $db)
+    {
+        $currentVersion = file_get_contents(UPDATES_STATUS_FILE);
+        if ($currentVersion === false) {
+            file_put_contents(UPDATES_STATUS_FILE, "<?php // -1");
+            $currentVersion = -1;
+        } else {
+            $currentVersion = intval(substr($currentVersion, 9));
+        }
+        $files = glob(SQL_UPDATES_FOLDER . '/*.sql');
+        $updateVersion = null;
+        foreach ($files as $file) {
+            if (!is_file($file)) {
+                continue;
+            }
+            $version = intval(basename($file, '.sql'));
+            if ($version > $currentVersion) {
+                $db->exec(file_get_contents($file));
+                $updateVersion = $version;
+            }
+        }
+        if ($updateVersion !== null) {
+            file_put_contents(
+                UPDATES_STATUS_FILE,
+                "<?php // " . $updateVersion
+            );
+        }
+    }
+
     public function end()
     {
         if (!$this->has_exec) {
diff --git a/backend-php/k-api.updates-status.php b/backend-php/k-api.updates-status.php
new file mode 100644
index 0000000..2d64f23
--- /dev/null
+++ b/backend-php/k-api.updates-status.php
@@ -0,0 +1 @@
+<?php // 0
\ No newline at end of file
diff --git a/backend-php/sql-updates/0.sql b/backend-php/sql-updates/0.sql
new file mode 100644
index 0000000..56866b5
--- /dev/null
+++ b/backend-php/sql-updates/0.sql
@@ -0,0 +1,34 @@
+/* initial sql database (dxv4 2.1) */
+
+CREATE TABLE admins (
+    adminId    TEXT    UNIQUE
+                       NOT NULL,
+    adminName  TEXT    NOT NULL,
+    adminClass TEXT    NOT NULL,
+    adminPrems INTEGER DEFAULT (666) 
+);
+
+CREATE TABLE changes (
+    classId TEXT,
+    forDay  TEXT,
+    content TEXT
+);
+
+CREATE TABLE classes (
+    classid       TEXT UNIQUE
+                       NOT NULL,
+    userclassname TEXT NOT NULL
+);
+
+CREATE TABLE rings (
+    classId  TEXT,
+    fromDate TEXT,
+    content  TEXT
+);
+
+CREATE TABLE schedules (
+    classId   TEXT,
+    fromDate  TEXT,
+    dayOfWeek INTEGER,
+    content   TEXT
+);
diff --git a/dx4dashboard/src/pages/DashPage.tsx b/dx4dashboard/src/pages/DashPage.tsx
index fc0ad13..1417960 100644
--- a/dx4dashboard/src/pages/DashPage.tsx
+++ b/dx4dashboard/src/pages/DashPage.tsx
@@ -48,7 +48,6 @@ export default function DashPage({
 
   const tabs: Record<string, string> = {
     class: "классы",
-    admin: "админы",
     server: "сервер",
   };
 
@@ -85,8 +84,6 @@ export default function DashPage({
                       setRoute={(p: string) => setsetRoute(setRoute, p)}
                     />
                   );
-                case "admin":
-                  return <AdminsMainEditor pass={pass as string} />;
                 case "server":
                   return <ServerEditor pass={pass as string} />;
               }
@@ -183,17 +180,10 @@ export const CopyClassLink = ({
     </DengiButton>
   );
 };
-function AdminsMainEditor({ pass }: { pass: string }) {
-  return (
-    <div className="block">
-      <img src="https://od.lk/s/MTBfMzQ0MTQ0Njg5Xw/admin1.webp" alt="" className="w-30 h-auto" draggable={false} onContextMenu={e=>e.preventDefault()} />
-      {/* <img src="https://od.lk/s/MTBfMzQ0MTQ0NjkyXw/admin2.webp" alt="" className="w-30 h-auto" draggable={false} onContextMenu={e=>e.preventDefault()}/> */}
-    </div>
-  );
-}
+
 function ServerEditor({ pass }: { pass: string }) {
   const [serverData, setServerData] = useState<Record<string, string> | false>(
-    false
+    false,
   );
   const [idle, setIdle] = useState(false);
   const [showL, setShowL] = useState(false);
@@ -390,107 +380,6 @@ function CreateClass({ pass, update }: { pass: string; update: () => void }) {
   );
 }
 
-// export function AdminProfileEditor({
-//   adminFrId,
-//   setAdminFrId,
-//   adminId,
-//   classId,
-//   pickmeMode = false,
-// }) {
-//   return (
-//     <div className=" bg-grain bg-zinc-800/50 p-5 rounded-2xl not-md:w-[90%]">
-//       <table className="">
-//         <tbody className="*:*:w-10 *:*:h-10">
-//           <tr>
-//             <td className="">имя</td>
-//             <td className="w-50!">
-//               <DengiEditable
-//                 value={adminFrId}
-//                 pink={pickmeMode}
-//                 onSubmit={async (e) => {
-//                   e.setIdle(true);
-//                   const r = await AdminUpdateRequest(API_BASE_URL, adminId, {
-//                     action: "change_name",
-//                     value: e.value.trim(),
-//                   });
-//                   if (r[1] == true) setAdminFrId(e.value);
-//                   e.setIdle(false);
-//                 }}
-//               />
-//             </td>
-//           </tr>
-//           <tr>
-//             <td>id</td>
-//             <td>
-//               <DengiEditable
-//                 value={adminId}
-//                 password={true}
-//                 pink={pickmeMode}
-//                 disabled
-//               />
-//             </td>
-//           </tr>
-//           <tr>
-//             <td>class</td>
-//             <td className="font-mono text-center select-all selectable">
-//               {classId ? classId : <TextPreloader />}
-//             </td>
-//           </tr>
-//         </tbody>
-//       </table>
-//       <CopyLink {...{ adminId, classId }} />
-//     </div>
-//   );
-// }
-
-// const CopyLink = ({ classId, adminId }) => {
-//   const [showDiag, setShowDiag] = useState(false);
-//   const [seenDiag, setSeenDiag] = useState(false);
-//   const [linkCopied, setLinkCopied] = useState(false);
-//   const copy = () => {
-//     copyDXLink(classId, adminId).then((a) => {
-//       if (a) {
-//         setLinkCopied(true);
-//         setTimeout(() => {
-//           setLinkCopied(false);
-//         }, 2000);
-//       }
-//     });
-//   };
-//   return (
-//     <div className="flex justify-end mt-2">
-//       <DengiYesOrNoDialog
-//         show={showDiag}
-//         content={{
-//           message: (
-//             <p>
-//               <b>любой</b>, кто получит ссылку,{" "}
-//               <b>будет иметь доступ к админке</b>.<br /> вы желаете продолжить?
-//             </p>
-//           ),
-//           yesBtn: "да",
-//           noBtn: "нет",
-//           yesIcon: <BiCopy />,
-//           noIcon: <BiX size={20} />,
-//           bgDissmis: true,
-//           yesBtnStyle: "bg-orange-500! text-white! md:hover:bg-orange-600!",
-//         }}
-//         onAnswer={(answ) => {
-//           if (answ) {
-//             setSeenDiag(true);
-//             copy();
-//           }
-//           setShowDiag(false);
-//         }}
-//       />
-//       <DengiButton onClick={() => (seenDiag ? copy() : setShowDiag(true))}>
-//         <BiLink /> <BiError color={"orange"} />
-//         <span>{linkCopied ? "скопировано" : "коп ссылку на админку"}</span>
-//       </DengiButton>
-//     </div>
-//   );
-// };
-
 export const CoolBg = ({}) => {
   return (
     <>