diff --git a/README.md b/README.md
index 0b4295f..289c595 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,15 @@
 # dx 4
 
-run
+### run
+- frontend `bun dev --host` 
+- backend `cd ./backend-php/; ./dev.ps1` or `cat ./dev.ps1 | sh` if you are in other os
 
-`bun dev --host` and `cd ./backend-php/; ./dev.ps1` or `cat ./dev.ps1 | sh` if you are in other os
+### IMPORTANT
 
-# IMPORTANT
-change `API_BASE_URL` in `src/App.jsx`
\ No newline at end of file
+- main
+  - change `API_BASE_URL` in `src/App.jsx`
+- 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
diff --git a/archive.txt b/archive.txt
deleted file mode 100644
index 77c4681..0000000
--- a/archive.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-todo md
-  <!--
-- [ ] write changes engine in php
-  - [ ] predict all possible unexpected situation (write here)
-    - lesson starts with
-      - 0
-      - -1
-      - -2
-    - lessons on saturday / sunday рџ’Ђрџ’Ђ
-    - missing lesson (like 1,2, 4; also don't forger about this in editor)
-- [x] start develop editor ui -->
diff --git a/backend-go.7z b/backend-go.7z
deleted file mode 100644
index 806f17c..0000000
Binary files a/backend-go.7z and /dev/null differ
diff --git a/backend-php/.gitignore b/backend-php/.gitignore
index 5a95457..0af5d57 100644
--- a/backend-php/.gitignore
+++ b/backend-php/.gitignore
@@ -1,2 +1,4 @@
 api.lock
-_api.lock
\ No newline at end of file
+_api.lock
+
+data.db
\ No newline at end of file
diff --git a/backend-php/admin_api.php b/backend-php/admin_api.php
index 67834aa..c58ef19 100644
--- a/backend-php/admin_api.php
+++ b/backend-php/admin_api.php
@@ -3,7 +3,6 @@ include 'k-api.php';
 
 
 const ADMIN_PASS = "superdengipassword4";
-const SECRET_KEY = "dengisecretkey_monay_ivan_pletnev";
 const API_PATH = "./";
 
 function db()
@@ -28,7 +27,7 @@ function relativePathToUrl($rel)
 
 
 function FastDBReq(PDO $db, string $sql, array $params = []): array
-{
+{   
     try {
         $stmt = $db->prepare($sql);
         $stmt->execute($params);
diff --git a/backend-php/api.php b/backend-php/api.php
index 7575dee..aa99092 100644
--- a/backend-php/api.php
+++ b/backend-php/api.php
@@ -8,7 +8,7 @@ function db()
     return $pdo;
 };
 
-function findClosestDateSort($array, $targetDate)
+function findClosestDateSort(array $array, string $targetDate)
 {
     if (empty($array) || !preg_match('/^\d{1,2}-\d{1,2}-\d{2}$/', $targetDate)) {
         return null;
diff --git a/backend-php/t.php b/backend-php/t.php
deleted file mode 100644
index c4e7fac..0000000
--- a/backend-php/t.php
+++ /dev/null
@@ -1,2 +0,0 @@
-<?php
-echo 'test';
\ No newline at end of file
diff --git a/dengi.ps1 b/dengi.ps1
deleted file mode 100644
index 4839716..0000000
--- a/dengi.ps1
+++ /dev/null
@@ -1,23 +0,0 @@
-# save as Count-Word.ps1
-param(
-  [string]$Root = ".",
-  [string]$Word = "dengi"
-)
-
-$pattern = "\b" + [regex]::Escape($Word) + "\b"
-$count = 0
-
-Get-ChildItem -Path $Root -Recurse -File -ErrorAction SilentlyContinue |
-  Where-Object { $_.FullName -notmatch "\\dist(\\|$)" } |
-  ForEach-Object {
-    try {
-      # прочитать текстовый файл; если не текстовый — пропустить
-      $text = Get-Content -LiteralPath $_.FullName -ErrorAction Stop -Raw -Encoding UTF8
-    } catch {
-      try { $text = Get-Content -LiteralPath $_.FullName -ErrorAction Stop -Raw -Encoding Default } catch { return }
-    }
-    $matches = [regex]::Matches($text, $pattern, "IgnoreCase")
-    $count += $matches.Count
-  }
-
-Write-Output $count
diff --git a/dengi_notes.md b/dengi_notes.md
deleted file mode 100644
index e69de29..0000000
diff --git a/ideas.md b/ideas.md
deleted file mode 100644
index 03a8b41..0000000
--- a/ideas.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# main ideas
-
-# editor ideas
-
-- when typing `n-n` (example `1-5`), automaticly copies everything
\ No newline at end of file
diff --git a/todo.md b/todo.md
deleted file mode 100644
index 99b3d7f..0000000
--- a/todo.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# todox
-
-- [x] autologin
-- [x] copy link
-- [x] auto day switcher (basic)
-  - [x] today lessons ended
-
-## later `(dx 1.1)`
-
-- [ ] light while lesson or before it begins
-- [ ] auto day switcher v2
-  - [ ] when no lessons today
-- [ ] class ui [only for `-1` prems]
-  - [ ] adminEditor