diff --git a/demo/src/main/java/com/example/demo/controller/AlbumController.java b/demo/src/main/java/com/example/demo/controller/AlbumController.java
deleted file mode 100644
index 1550990..0000000
--- a/demo/src/main/java/com/example/demo/controller/AlbumController.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.example.demo.controller;
-
-import com.example.demo.dto.AlbumDto;
-import org.springframework.web.bind.annotation.*;
-import java.util.*;
-import java.util.concurrent.atomic.AtomicInteger;
-
-@RestController
-@RequestMapping("/api")
-public class AlbumController {
-    
-    private final Map<Integer, AlbumDto> albums = new LinkedHashMap<>();
-    private final AtomicInteger idCounter = new AtomicInteger(1);
-
-    public AlbumController() {
-        // Инициализация пустой коллекцией (как в db.json)
-    }
-
-    @GetMapping("/albums")
-    public List<AlbumDto> getAllAlbums() {
-        return new ArrayList<>(albums.values());
-    }
-
-    @GetMapping("/albums/{id}")
-    public AlbumDto getAlbumById(@PathVariable Integer id) {
-        return albums.get(id);
-    }
-
-    @PostMapping("/albums")
-    public AlbumDto createAlbum(@RequestBody AlbumDto album) {
-        Integer newId = idCounter.getAndIncrement();
-        album.setId(newId);
-        albums.put(newId, album);
-        return album;
-    }
-
-    @PutMapping("/albums/{id}")
-    public AlbumDto updateAlbum(@PathVariable Integer id, @RequestBody AlbumDto album) {
-        if (albums.containsKey(id)) {
-            album.setId(id);
-            albums.put(id, album);
-            return album;
-        }
-        return null;
-    }
-
-    @PatchMapping("/albums/{id}")
-    public AlbumDto patchAlbum(@PathVariable Integer id, @RequestBody Map<String, Object> updates) {
-        AlbumDto existingAlbum = albums.get(id);
-        if (existingAlbum != null) {
-            if (updates.containsKey("artistId")) {
-                existingAlbum.setArtistId((Integer) updates.get("artistId"));
-            }
-            if (updates.containsKey("title")) {
-                existingAlbum.setTitle((String) updates.get("title"));
-            }
-            if (updates.containsKey("year")) {
-                existingAlbum.setYear((Integer) updates.get("year"));
-            }
-            albums.put(id, existingAlbum);
-            return existingAlbum;
-        }
-        return null;
-    }
-
-    @DeleteMapping("/albums/{id}")
-    public boolean deleteAlbum(@PathVariable Integer id) {
-        return albums.remove(id) != null;
-    }
-}
diff --git a/demo/src/main/java/com/example/demo/controller/SongController.java b/demo/src/main/java/com/example/demo/controller/SongController.java
deleted file mode 100644
index 5bbcba7..0000000
--- a/demo/src/main/java/com/example/demo/controller/SongController.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.example.demo.controller;
-
-import com.example.demo.dto.SongDto;
-import org.springframework.web.bind.annotation.*;
-import java.util.*;
-import java.util.concurrent.atomic.AtomicInteger;
-
-@RestController
-@RequestMapping("/api")
-public class SongController {
-    
-    private final Map<Integer, SongDto> songs = new LinkedHashMap<>();
-    private final AtomicInteger idCounter = new AtomicInteger(1);
-
-    public SongController() {
-        // Инициализация пустой коллекцией (как в db.json)
-    }
-
-    @GetMapping("/songs")
-    public List<SongDto> getAllSongs() {
-        return new ArrayList<>(songs.values());
-    }
-
-    @GetMapping("/songs/{id}")
-    public SongDto getSongById(@PathVariable Integer id) {
-        return songs.get(id);
-    }
-
-    @PostMapping("/songs")
-    public SongDto createSong(@RequestBody SongDto song) {
-        Integer newId = idCounter.getAndIncrement();
-        song.setId(newId);
-        songs.put(newId, song);
-        return song;
-    }
-
-    @PutMapping("/songs/{id}")
-    public SongDto updateSong(@PathVariable Integer id, @RequestBody SongDto song) {
-        if (songs.containsKey(id)) {
-            song.setId(id);
-            songs.put(id, song);
-            return song;
-        }
-        return null;
-    }
-
-    @PatchMapping("/songs/{id}")
-    public SongDto patchSong(@PathVariable Integer id, @RequestBody Map<String, Object> updates) {
-        SongDto existingSong = songs.get(id);
-        if (existingSong != null) {
-            if (updates.containsKey("albumId")) {
-                existingSong.setAlbumId((Integer) updates.get("albumId"));
-            }
-            if (updates.containsKey("title")) {
-                existingSong.setTitle((String) updates.get("title"));
-            }
-            if (updates.containsKey("duration")) {
-                existingSong.setDuration((String) updates.get("duration"));
-            }
-            songs.put(id, existingSong);
-            return existingSong;
-        }
-        return null;
-    }
-
-    @DeleteMapping("/songs/{id}")
-    public boolean deleteSong(@PathVariable Integer id) {
-        return songs.remove(id) != null;
-    }
-}
diff --git a/demo/src/main/java/com/example/demo/dto/AlbumDto.java b/demo/src/main/java/com/example/demo/dto/AlbumDto.java
deleted file mode 100644
index 7edcefe..0000000
--- a/demo/src/main/java/com/example/demo/dto/AlbumDto.java
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.example.demo.dto;
-
-public class AlbumDto {
-    private Integer id;
-    private Integer artistId;
-    private String title;
-    private Integer year;
-
-    public AlbumDto() {}
-
-    public AlbumDto(Integer id, Integer artistId, String title, Integer year) {
-        this.id = id;
-        this.artistId = artistId;
-        this.title = title;
-        this.year = year;
-    }
-
-    public Integer getId() {
-        return id;
-    }
-
-    public void setId(Integer id) {
-        this.id = id;
-    }
-
-    public Integer getArtistId() {
-        return artistId;
-    }
-
-    public void setArtistId(Integer artistId) {
-        this.artistId = artistId;
-    }
-
-    public String getTitle() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title = title;
-    }
-
-    public Integer getYear() {
-        return year;
-    }
-
-    public void setYear(Integer year) {
-        this.year = year;
-    }
-}
diff --git a/demo/src/main/java/com/example/demo/dto/SongDto.java b/demo/src/main/java/com/example/demo/dto/SongDto.java
deleted file mode 100644
index 8c5d82a..0000000
--- a/demo/src/main/java/com/example/demo/dto/SongDto.java
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.example.demo.dto;
-
-public class SongDto {
-    private Integer id;
-    private Integer albumId;
-    private String title;
-    private String duration;
-
-    public SongDto() {}
-
-    public SongDto(Integer id, Integer albumId, String title, String duration) {
-        this.id = id;
-        this.albumId = albumId;
-        this.title = title;
-        this.duration = duration;
-    }
-
-    public Integer getId() {
-        return id;
-    }
-
-    public void setId(Integer id) {
-        this.id = id;
-    }
-
-    public Integer getAlbumId() {
-        return albumId;
-    }
-
-    public void setAlbumId(Integer albumId) {
-        this.albumId = albumId;
-    }
-
-    public String getTitle() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title = title;
-    }
-
-    public String getDuration() {
-        return duration;
-    }
-
-    public void setDuration(String duration) {
-        this.duration = duration;
-    }
-}
diff --git a/punkrock-react/db.json b/punkrock-react/db.json
deleted file mode 100644
index aff0fe7..0000000
--- a/punkrock-react/db.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "artists": [
-    {
-      "id": "9daa",
-      "name": "testlabуцк",
-      "description": "sadууу",
-      "epochId": 2,
-      "countryId": 3
-    },
-    {
-      "id": "98ad",
-      "name": "ыфвфы",
-      "description": "выфв",
-      "epochId": 1,
-      "countryId": 1
-    },
-    {
-      "id": "dd28",
-      "name": "аааа",
-      "description": "ааа",
-      "epochId": 2,
-      "countryId": 3
-    },
-    {
-      "id": "b499",
-      "name": "бб",
-      "description": "уафв",
-      "epochId": 1,
-      "countryId": 3
-    },
-    {
-      "id": "0f62",
-      "name": "Максим",
-      "description": "2",
-      "epochId": 2,
-      "countryId": 1
-    }
-  ],
-  "countries": [
-    {
-      "id": "1",
-      "name": "Россия"
-    },
-    {
-      "id": "2",
-      "name": "США"
-    },
-    {
-      "id": "3",
-      "name": "Тайга"
-    }
-  ],
-  "epochs": [
-    {
-      "id": "1",
-      "name": "1980-е"
-    },
-    {
-      "id": "2",
-      "name": "1990-е"
-    }
-  ],
-  "albums": [],
-  "songs": []
-}
\ No newline at end of file
diff --git a/punkrock-react/package.json b/punkrock-react/package.json
index a3dc4ac..fe50e61 100644
--- a/punkrock-react/package.json
+++ b/punkrock-react/package.json
@@ -22,9 +22,7 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
-    "eject": "react-scripts eject",
-    "json-server": "json-server --watch db.json --port 3001",
-    "dev": "concurrently \"npm start\" \"npm run json-server\""
+    "eject": "react-scripts eject"
   },
   "eslintConfig": {
     "extends": [
@@ -44,8 +42,5 @@
       "last 1 safari version"
     ]
   },
-  "devDependencies": {
-    "concurrently": "^9.2.1",
-    "json-server": "^1.0.0-beta.3"
-  }
+  "devDependencies": {}
 }
diff --git a/punkrock-react/public/db.json b/punkrock-react/public/db.json
deleted file mode 100644
index 1b16c47..0000000
--- a/punkrock-react/public/db.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "artists": [
-    {
-      "id": "1",
-      "name": "Гражданская Оборона",
-      "description": "Советская и российская рок-группа, основанная Егором Летовым.",
-      "year": 1984,
-      "country": "Россия"
-    },
-    {
-      "id": "f28f",
-      "name": "что-то",
-      "description": "sdad",
-      "year": 1998,
-      "country": "Россия"
-    },
-    {
-      "id": "2134",
-      "name": "бб",
-      "description": "ццвыф",
-      "year": 1999,
-      "country": "Россия"
-    }
-  ],
-  "albums": [
-    {
-      "id": "1",
-      "artistId": 1,
-      "title": "Поганая молодёжь",
-      "year": 1985
-    },
-    {
-      "id": "2",
-      "artistId": 1,
-      "title": "Оптимизм",
-      "year": 1985
-    },
-    {
-      "id": "3",
-      "artistId": 2,
-      "title": "Камнем по голове",
-      "year": 1996
-    }
-  ],
-  "songs": [
-    {
-      "id": "1",
-      "albumId": 1,
-      "title": "Я бесполезен",
-      "duration": "2:30"
-    },
-    {
-      "id": "2",
-      "albumId": 3,
-      "title": "Кукла колдуна",
-      "duration": "3:15"
-    }
-  ]
-}
\ No newline at end of file