diff --git a/db/config.py b/bd/__init__.py
similarity index 67%
rename from db/config.py
rename to bd/__init__.py
index 4d5ddef..3ffc02b 100644
--- a/db/config.py
+++ b/bd/__init__.py
@@ -1,13 +1,15 @@
+# Database configuration package
 from pydantic.generics import GenericModel  
 import re
 import os
+import urllib.parse
 
 class Settings(GenericModel):
     DB_HOST: str = os.getenv("DB_HOST", "postgres")
     DB_PORT: int = int(os.getenv("DB_PORT", "5432"))
     DB_USER: str = os.getenv("DB_USER", "postgres")
     DB_PASS: str = os.getenv("DB_PASS", "")
-    DB_NAME: str = os.getenv("DB_NAME", "syte")
+    DB_NAME: str = os.getenv("DB_NAME", "profi")
 
     @classmethod
     def validate_db_port(cls, v):
@@ -23,8 +25,10 @@ class Settings(GenericModel):
 
     @property 
     def DATABASE_URL_asyncpg(self) -> str:
-        return f"postgresql+asyncpg://{self.DB_USER}:{self.DB_PASS}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+        pwd = urllib.parse.quote_plus(str(self.DB_PASS))
+        return f"postgresql+asyncpg://{self.DB_USER}:{pwd}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
     
     @property 
     def DATABASE_URL_syncpg(self) -> str:
-        return f"postgresql+psycopg2://{self.DB_USER}:{self.DB_PASS}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+        pwd = urllib.parse.quote_plus(str(self.DB_PASS))
+        return f"postgresql+pg8000://{self.DB_USER}:{pwd}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
diff --git a/bd/tables/choice.py b/bd/tables/choice.py
new file mode 100644
index 0000000..001cf0c
--- /dev/null
+++ b/bd/tables/choice.py
@@ -0,0 +1,16 @@
+from sqlalchemy import Column, String, Integer, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from .simple_base import Base
+import uuid
+
+
+class Choice(Base):
+    __tablename__ = "choices"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    question_id = Column(UUID(as_uuid=True), ForeignKey("questions.id", ondelete="CASCADE"), nullable=False)
+    text = Column(String(500), nullable=False)
+    position = Column(Integer, nullable=True)
+
+
+__all__ = ["Base", "Choice"]
diff --git a/bd/tables/group.py b/bd/tables/group.py
new file mode 100644
index 0000000..8c2c509
--- /dev/null
+++ b/bd/tables/group.py
@@ -0,0 +1,17 @@
+from sqlalchemy import Column, String, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from .simple_base import Base
+import uuid
+from sqlalchemy.orm import relationship
+
+class Group(Base):
+	__tablename__ = "group"
+
+	id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+	name_group = Column(String(150), nullable=False)
+	user_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
+
+	user = relationship("User", backref="groups", passive_deletes=True)
+
+__all__ = ["Base", "Group"]
+
diff --git a/bd/tables/organization.py b/bd/tables/organization.py
new file mode 100644
index 0000000..c18445b
--- /dev/null
+++ b/bd/tables/organization.py
@@ -0,0 +1,17 @@
+from sqlalchemy import Column, String, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from .simple_base import Base
+import uuid
+from sqlalchemy.orm import relationship
+
+class Organization(Base):
+	__tablename__ = "organization"
+
+	id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+	name_organization = Column(String(150), nullable=False)
+	group_id = Column(UUID(as_uuid=True), ForeignKey("group.id", ondelete="CASCADE"), nullable=False)
+
+	group = relationship("Group", backref="organizations", passive_deletes=True)
+    
+__all__ = ["Base", "Organization"]
+
diff --git a/bd/tables/poll.py b/bd/tables/poll.py
new file mode 100644
index 0000000..e7358da
--- /dev/null
+++ b/bd/tables/poll.py
@@ -0,0 +1,21 @@
+from sqlalchemy import Column, String, Boolean, DateTime, Text
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+from .simple_base import Base
+import uuid
+
+
+class Poll(Base):
+    __tablename__ = "polls"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    title = Column(String(255), nullable=False)
+    description = Column(Text, nullable=True)
+    is_active = Column(Boolean, default=True, nullable=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
+
+    questions = relationship("Question", backref="poll", cascade="all, delete-orphan", passive_deletes=True)
+
+
+__all__ = ["Base", "Poll"]
diff --git a/bd/tables/question.py b/bd/tables/question.py
new file mode 100644
index 0000000..e11d8eb
--- /dev/null
+++ b/bd/tables/question.py
@@ -0,0 +1,20 @@
+from sqlalchemy import Column, Text, Integer, ForeignKey, String
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import relationship
+from .simple_base import Base
+import uuid
+
+
+class Question(Base):
+    __tablename__ = "questions"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    poll_id = Column(UUID(as_uuid=True), ForeignKey("polls.id", ondelete="CASCADE"), nullable=False)
+    text = Column(Text, nullable=False)
+    position = Column(Integer, nullable=True)
+    type = Column(String(32), nullable=False, default="single")  # single|multi|open
+
+    choices = relationship("Choice", backref="question", cascade="all, delete-orphan", passive_deletes=True)
+
+
+__all__ = ["Base", "Question"]
diff --git a/bd/tables/response.py b/bd/tables/response.py
new file mode 100644
index 0000000..41f7c86
--- /dev/null
+++ b/bd/tables/response.py
@@ -0,0 +1,30 @@
+from sqlalchemy import Column, DateTime, ForeignKey, Text
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+from .simple_base import Base
+import uuid
+
+
+class Response(Base):
+    __tablename__ = "responses"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    poll_id = Column(UUID(as_uuid=True), ForeignKey("polls.id"), nullable=False)
+    user_id = Column(UUID(as_uuid=True), nullable=True)
+    submitted_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
+
+    answers = relationship("Answer", backref="response", cascade="all, delete-orphan", passive_deletes=True)
+
+
+class Answer(Base):
+    __tablename__ = "answers"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    response_id = Column(UUID(as_uuid=True), ForeignKey("responses.id", ondelete="CASCADE"), nullable=False)
+    question_id = Column(UUID(as_uuid=True), ForeignKey("questions.id"), nullable=False)
+    choice_id = Column(UUID(as_uuid=True), nullable=True)
+    text = Column(Text, nullable=True)
+
+
+__all__ = ["Base", "Response", "Answer"]
diff --git a/bd/tables/simple_base.py b/bd/tables/simple_base.py
new file mode 100644
index 0000000..95ebc0c
--- /dev/null
+++ b/bd/tables/simple_base.py
@@ -0,0 +1,3 @@
+from sqlalchemy.orm import declarative_base
+
+Base = declarative_base()
\ No newline at end of file
diff --git a/bd/tables/users.py b/bd/tables/users.py
new file mode 100644
index 0000000..e2e1fdb
--- /dev/null
+++ b/bd/tables/users.py
@@ -0,0 +1,14 @@
+from sqlalchemy import Column, String
+from sqlalchemy.dialects.postgresql import UUID
+from .simple_base import Base
+import uuid
+
+class User(Base):
+	__tablename__ = "users"
+
+	id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+	first_name = Column(String(150), nullable=False)
+	last_name = Column(String(150), nullable=False)
+
+__all__ = ["Base", "User"]
+
diff --git a/docker-compose.yml b/docker-compose.yml
index f114713..a3959a7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   api:
     build: .
@@ -12,7 +10,12 @@ services:
       - DB_HOST=192.168.1.11
       - DB_PORT=5432
       - DB_USER=admin1
-      - DB_PASS=_NuUXNv*P+#;4v7
-      - DB_NAME=syte
+      - DB_PASS=Y6%r35RpckeP^F
+      - DB_NAME=profi
+      # Redis connection (external)
+      - REDIS_HOST=192.168.1.19
+      - REDIS_PORT=6379
+      - REDIS_DB=0
+      - REDIS_PASSWORD=CNXpuhMdxXHo7ZK8bhtXDvgXVZcjRn
     volumes:
       - ./data:/app/data
diff --git a/main.py b/main.py
index 1084a7e..ccc41f0 100644
--- a/main.py
+++ b/main.py
@@ -2,7 +2,7 @@ import os
 import tomllib
 from pathlib import Path
 from fastapi import FastAPI
-from route import base
+from route import base, holland_crud, init_data_base, groups_crud, organizations_crud, users_crud, question_crud, choice_crud, response_crud, poll_crud, ui
 import uvicorn
 
 # Читаем версию из pyproject.toml
@@ -21,6 +21,17 @@ APP_PATH = os.getenv("APP_PATH", "/home/user/api-copp")
 
 app = FastAPI(title="api", version=VERSION)
 app.include_router(base.router)
+app.include_router(init_data_base.router)
+app.include_router(groups_crud.router)
+app.include_router(organizations_crud.router)
+app.include_router(users_crud.router)
+app.include_router(question_crud.router)
+app.include_router(choice_crud.router)
+app.include_router(response_crud.router)
+app.include_router(poll_crud.router)
+app.include_router(holland_crud.router)
+app.include_router(ui.router)
+
 
 # Доступна переменная APP_PATH для использования в приложении
 print(f"Application path: {APP_PATH}")
diff --git a/pyproject.toml b/pyproject.toml
index 7ded047..7f98fd1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,6 +16,9 @@ dependencies = [
     "uvicorn[standard]>=0.40.0",
     "pydantic>=2.12.5",
     "python-dotenv>=1.2.1",
+    "redis>=7.1.0",
+    "sqlalchemy>=2.0.47",
+    "psycopg>=3.3.3",
 ]
 
 [project.optional-dependencies]
diff --git a/redis_db/__init__.py b/redis_db/__init__.py
new file mode 100644
index 0000000..e515b55
--- /dev/null
+++ b/redis_db/__init__.py
@@ -0,0 +1,62 @@
+from pydantic.generics import GenericModel
+import os
+import redis
+
+
+class RedisSettings(GenericModel):
+    REDIS_HOST: str = os.getenv("REDIS_HOST", "192.168.1.19")
+    REDIS_PORT: int = int(os.getenv("REDIS_PORT", 6379))
+    REDIS_DB: int = int(os.getenv("REDIS_DB", 0))
+    REDIS_PASSWORD: str = os.getenv("REDIS_PASSWORD") or None
+
+    @property
+    def REDIS_URL(self) -> str:
+        """Получить Redis URL для подключения"""
+        if self.REDIS_PASSWORD:
+            return f"redis://:{self.REDIS_PASSWORD}@{self.REDIS_HOST}:{self.REDIS_PORT}/{self.REDIS_DB}"
+        else:
+            return f"redis://{self.REDIS_HOST}:{self.REDIS_PORT}/{self.REDIS_DB}"
+
+    @property
+    def connection_kwargs(self) -> dict:
+        """Получить параметры подключения для redis.Redis()"""
+        return {
+            "host": self.REDIS_HOST,
+            "port": self.REDIS_PORT,
+            "db": self.REDIS_DB,
+            "password": self.REDIS_PASSWORD,
+            "decode_responses": True,
+        }
+
+    def get_client(self) -> redis.Redis:
+        """Создать и вернуть Redis клиент"""
+        return redis.Redis(**self.connection_kwargs)
+
+    def test_connection(self) -> bool:
+        """Протестировать подключение к Redis"""
+        try:
+            client = self.get_client()
+            client.ping()
+            print(f"✓ Успешно подключено к Redis на {self.REDIS_HOST}:{self.REDIS_PORT}")
+            return True
+        except redis.ConnectionError as e:
+            print(f"✗ Ошибка подключения к Redis: {e}")
+            return False
+
+
+# Глобальная конфигурация
+_redis_settings = RedisSettings()
+
+
+def get_redis_settings() -> RedisSettings:
+    """Получить конфигурацию Redis"""
+    return _redis_settings
+
+
+def get_redis_client() -> redis.Redis:
+    """Получить готовый клиент Redis"""
+    return _redis_settings.get_client()
+
+
+__all__ = ["RedisSettings", "get_redis_settings", "get_redis_client"]
+
diff --git a/requirements.txt b/requirements.txt
index caa7d08..4cd1ed1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,10 @@ idna==3.11
 pydantic==2.12.5
 pydantic_core==2.41.5
 python-dotenv==1.2.1
+redis==5.0.0
 starlette==0.50.0
 typing-inspection==0.4.2
 typing_extensions==4.15.0
 uvicorn==0.40.0
+sqlalchemy==2.0.32
+pg8000==1.29.0
\ No newline at end of file
diff --git a/route/__init__.py b/route/__init__.py
new file mode 100644
index 0000000..d212dab
--- /dev/null
+++ b/route/__init__.py
@@ -0,0 +1 @@
+# Routes package
diff --git a/route/base.py b/route/base.py
index f9ce7ab..31e75cf 100644
--- a/route/base.py
+++ b/route/base.py
@@ -1,6 +1,10 @@
 import tomllib
 from pathlib import Path
-from fastapi import APIRouter
+from fastapi import APIRouter, HTTPException
+import socket
+
+from bd import Settings
+from redis_db import get_redis_client
 
 # Создаем базовый router для FastAPI
 router = APIRouter(tags=["base"])
@@ -25,4 +29,36 @@ async def health():
 
 @router.get("/version")
 async def version():
-    return {"version": get_version()}
\ No newline at end of file
+    return {"version": get_version()}
+
+
+@router.get("/health/db")
+async def health_db():
+    """Проверка доступности БД по TCP (host:port)"""
+    settings = Settings()
+    host = settings.DB_HOST
+    port = settings.DB_PORT
+    try:
+        # Пробуем открыть TCP-соединение к хосту:порту
+        with socket.create_connection((host, port), timeout=3):
+            return {"status": "ok", "db": "reachable", "host": host, "port": port}
+    except Exception as e:
+        raise HTTPException(status_code=503, detail=f"db unreachable: {e}")
+
+
+@router.get("/health/redis")
+async def health_redis():
+    """Проверка подключения к Redis через ping()"""
+    client = get_redis_client()
+    try:
+        if client.ping():
+            # Получаем параметры соединения для удобства в ответе
+            conn_kwargs = getattr(client, "connection_pool", None)
+            info = {}
+            if conn_kwargs:
+                info = conn_kwargs.connection_kwargs if hasattr(conn_kwargs, 'connection_kwargs') else {}
+            return {"status": "ok", "redis": "reachable", "info": info}
+        else:
+            raise HTTPException(status_code=503, detail="redis ping failed")
+    except Exception as e:
+        raise HTTPException(status_code=503, detail=f"redis unreachable: {e}")
\ No newline at end of file
diff --git a/route/choice_crud.py b/route/choice_crud.py
new file mode 100644
index 0000000..c3332d7
--- /dev/null
+++ b/route/choice_crud.py
@@ -0,0 +1,114 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.choice import Choice
+from bd.tables.question import Question
+
+router = APIRouter(tags=["choices"], prefix="/choices")
+
+
+class ChoiceCreate(BaseModel):
+    question_id: str
+    text: str
+    position: Optional[int]
+
+
+class ChoiceUpdate(BaseModel):
+    text: Optional[str]
+    position: Optional[int]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_choice(payload: ChoiceCreate):
+    Session = get_session()
+    try:
+        qid = uuid.UUID(payload.question_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid question UUID")
+    with Session() as session:
+        question = session.get(Question, qid)
+        if not question:
+            raise HTTPException(status_code=404, detail="Question not found")
+        ch = Choice(question_id=qid, text=payload.text, position=payload.position)
+        session.add(ch)
+        session.commit()
+        session.refresh(ch)
+        return {"id": str(ch.id)}
+
+
+@router.put("/{choice_id}")
+def update_choice(choice_id: str, payload: ChoiceUpdate):
+    Session = get_session()
+    try:
+        cid = uuid.UUID(choice_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        ch = session.get(Choice, cid)
+        if not ch:
+            raise HTTPException(status_code=404, detail="Choice not found")
+        if payload.text is not None:
+            ch.text = payload.text
+        if payload.position is not None:
+            ch.position = payload.position
+        session.add(ch)
+        session.commit()
+        session.refresh(ch)
+        return {"id": str(ch.id)}
+
+
+@router.delete("/{choice_id}", status_code=204)
+def delete_choice(choice_id: str):
+    Session = get_session()
+    try:
+        cid = uuid.UUID(choice_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        ch = session.get(Choice, cid)
+        if not ch:
+            raise HTTPException(status_code=404, detail="Choice not found")
+        session.delete(ch)
+        session.commit()
+        return {}
+
+
+@router.get("/")
+def list_choices(question_id: Optional[str] = None):
+    Session = get_session()
+    with Session() as session:
+        q = session.query(Choice)
+        if question_id:
+            try:
+                qid = uuid.UUID(question_id)
+                q = q.filter(Choice.question_id == qid)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid question_id UUID")
+        rows = q.all()
+        return [{"id": str(r.id), "text": r.text, "question_id": str(r.question_id)} for r in rows]
+
+
+@router.get("/{choice_id}")
+def get_choice(choice_id: str):
+    Session = get_session()
+    try:
+        cid = uuid.UUID(choice_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        ch = session.get(Choice, cid)
+        if not ch:
+            raise HTTPException(status_code=404, detail="Choice not found")
+        return {"id": str(ch.id), "text": ch.text, "question_id": str(ch.question_id)}
diff --git a/route/groups_crud.py b/route/groups_crud.py
new file mode 100644
index 0000000..3255f24
--- /dev/null
+++ b/route/groups_crud.py
@@ -0,0 +1,113 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.group import Group
+from bd.tables.users import User
+
+router = APIRouter(tags=["groups"], prefix="/groups")
+
+
+class GroupCreate(BaseModel):
+    name_group: str
+    user_id: str
+
+
+class GroupUpdate(BaseModel):
+    name_group: Optional[str]
+    user_id: Optional[str]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_group(payload: GroupCreate):
+    Session = get_session()
+    try:
+        uid = uuid.UUID(payload.user_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid user_id UUID")
+    with Session() as session:
+        user = session.get(User, uid)
+        if not user:
+            raise HTTPException(status_code=404, detail="User not found")
+        grp = Group(name_group=payload.name_group, user_id=uid)
+        session.add(grp)
+        session.commit()
+        session.refresh(grp)
+        return {"id": str(grp.id), "name_group": grp.name_group, "user_id": str(grp.user_id)}
+
+
+@router.get("/")
+def list_groups():
+    Session = get_session()
+    with Session() as session:
+        rows = session.query(Group).all()
+        return [{"id": str(g.id), "name_group": g.name_group, "user_id": str(g.user_id)} for g in rows]
+
+
+@router.get("/{group_id}")
+def get_group(group_id: str):
+    Session = get_session()
+    try:
+        gid = uuid.UUID(group_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        grp = session.get(Group, gid)
+        if not grp:
+            raise HTTPException(status_code=404, detail="Group not found")
+        return {"id": str(grp.id), "name_group": grp.name_group, "user_id": str(grp.user_id)}
+
+
+@router.put("/{group_id}")
+def update_group(group_id: str, payload: GroupUpdate):
+    Session = get_session()
+    try:
+        gid = uuid.UUID(group_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        grp = session.get(Group, gid)
+        if not grp:
+            raise HTTPException(status_code=404, detail="Group not found")
+        if payload.name_group is not None:
+            grp.name_group = payload.name_group
+        if payload.user_id is not None:
+            try:
+                new_uid = uuid.UUID(payload.user_id)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid user_id UUID")
+            user = session.get(User, new_uid)
+            if not user:
+                raise HTTPException(status_code=404, detail="User not found")
+            grp.user_id = new_uid
+        session.add(grp)
+        session.commit()
+        session.refresh(grp)
+        return {"id": str(grp.id), "name_group": grp.name_group, "user_id": str(grp.user_id)}
+
+
+@router.delete("/{group_id}", status_code=204)
+def delete_group(group_id: str):
+    Session = get_session()
+    try:
+        gid = uuid.UUID(group_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        grp = session.get(Group, gid)
+        if not grp:
+            raise HTTPException(status_code=404, detail="Group not found")
+        session.delete(grp)
+        session.commit()
+        return {}
diff --git a/route/holland_crud.py b/route/holland_crud.py
new file mode 100644
index 0000000..e32fd20
--- /dev/null
+++ b/route/holland_crud.py
@@ -0,0 +1,85 @@
+from fastapi import APIRouter, HTTPException
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.poll import Poll
+from bd.tables.question import Question
+from bd.tables.choice import Choice
+
+router = APIRouter(tags=["polls"], prefix="/polls")
+
+
+PAIRS = [
+    ("инженер-техник", "инженер-контролер"),
+    ("вязальщик", "санитарный врач"),
+    ("повар", "наборщик"),
+    ("фотограф", "зав. магазином"),
+    ("чертежник", "дизайнер"),
+    ("философ", "психиатр"),
+    ("ученый-химик", "бухгалтер"),
+    ("редактор научного журнала", "адвокат"),
+    ("лингвист", "переводчик художественной литературы"),
+    ("педиатр", "статистик"),
+    ("организатор воспитательной работы", "председатель профсоюза"),
+    ("спортивный врач", "фельетонист"),
+    ("нотариус", "снабженец"),
+    ("перфоратор", "карикатурист"),
+    ("политический деятель", "писатель"),
+    ("садовник", "метеоролог"),
+    ("водитель", "медсестра"),
+    ("инженер-электрик", "секретарь-машинистка"),
+    ("маляр", "художник по металлу"),
+    ("биолог", "главный врач"),
+    ("телеоператор", "режиссер"),
+    ("гидролог", "ревизор"),
+    ("зоолог", "зоотехник"),
+    ("математик", "архитектор"),
+    ("работник ИДН", "счетовод"),
+    ("учитель", "милиционер"),
+    ("воспитатель", "художник по керамике"),
+    ("экономист", "заведующий отделом"),
+    ("корректор", "критик"),
+    ("завхоз", "директор"),
+    ("радиоинженер", "специалист по ядерной физике"),
+    ("водопроводчик", "наборщик"),
+    ("агроном", "председатель сельхозкооператива"),
+    ("закройщик-модельер", "декоратор"),
+    ("археолог", "эксперт"),
+    ("работник музея", "консультант"),
+    ("ученый", "актер"),
+    ("логопед", "стенографист"),
+    ("врач", "дипломат"),
+    ("главный бухгалтер", "директор"),
+    ("поэт", "психолог"),
+    ("архивариус", "скульптор"),
+]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/holland", status_code=201)
+def create_holland_poll(author_id: Optional[str] = None):
+    Session = get_session()
+    with Session() as session:
+        poll = Poll(title="Тест Д. Голланда — определение типа личности",
+                    description="Тест Д. Голланда: выберите из каждой пары предпочитаемую профессию.")
+        # polls are anonymous; ignore author_id
+        session.add(poll)
+        for idx, (a, b) in enumerate(PAIRS, start=1):
+            q = Question(text=f"Вариант {idx}", position=idx, type="single", poll=poll)
+            session.add(q)
+            ch1 = Choice(question=q, text=f"а) {a}", position=1)
+            ch2 = Choice(question=q, text=f"б) {b}", position=2)
+            session.add(ch1)
+            session.add(ch2)
+        session.commit()
+        session.refresh(poll)
+        return {"id": str(poll.id), "questions": len(poll.questions)}
diff --git a/route/init_data_base.py b/route/init_data_base.py
new file mode 100644
index 0000000..12b9732
--- /dev/null
+++ b/route/init_data_base.py
@@ -0,0 +1,69 @@
+from fastapi import APIRouter, HTTPException
+import pkgutil
+import importlib
+from pathlib import Path
+from typing import List
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.exc import SQLAlchemyError
+
+router = APIRouter(tags=["db"])
+
+
+def _iter_table_modules() -> List[str]:
+    try:
+        import bd.tables as tables_pkg
+        pkg_paths = getattr(tables_pkg, "__path__", None)
+        if not pkg_paths:
+            pkg_paths = [str(Path(__file__).resolve().parent.parent / "bd" / "tables")]
+    except Exception:
+        pkg_paths = [str(Path(__file__).resolve().parent.parent / "bd" / "tables")]
+
+    names = []
+    for finder, name, ispkg in pkgutil.iter_modules(pkg_paths):
+        names.append(name)
+    return names
+
+
+def collect_metadatas():
+    metadatas = []
+    for mod_name in _iter_table_modules():
+        try:
+            module = importlib.import_module(f"bd.tables.{mod_name}")
+        except Exception:
+            continue
+        Base = getattr(module, "Base", None)
+        if Base is not None and hasattr(Base, "metadata"):
+            metadatas.append(Base.metadata)
+    return metadatas
+
+
+@router.post("/db/create-tables")
+async def create_tables():
+    """Создаёт все таблицы, описанные в модулях `db.tables`.
+
+    Endpoint вызывается по нажатию кнопки в UI (POST).
+    """
+    settings = Settings()
+    db_url = settings.DATABASE_URL_syncpg
+    engine = create_engine(db_url, future=True)
+
+    metadatas = collect_metadatas()
+    if not metadatas:
+        raise HTTPException(status_code=400, detail="No table metadata found in db.tables")
+
+    # deduplicate metadata objects (multiple modules may expose the same Base.metadata)
+    unique = []
+    seen = set()
+    for md in metadatas:
+        if id(md) not in seen:
+            seen.add(id(md))
+            unique.append(md)
+
+    try:
+        for md in unique:
+            md.create_all(bind=engine)
+        return {"status": "ok", "detail": f"Created {len(unique)} metadata groups"}
+    except SQLAlchemyError as e:
+        raise HTTPException(status_code=500, detail=str(e))
diff --git a/route/organizations_crud.py b/route/organizations_crud.py
new file mode 100644
index 0000000..ded5493
--- /dev/null
+++ b/route/organizations_crud.py
@@ -0,0 +1,113 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.organization import Organization
+from bd.tables.group import Group
+
+router = APIRouter(tags=["organizations"], prefix="/organizations")
+
+
+class OrganizationCreate(BaseModel):
+    name_organization: str
+    group_id: str
+
+
+class OrganizationUpdate(BaseModel):
+    name_organization: Optional[str]
+    group_id: Optional[str]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_organization(payload: OrganizationCreate):
+    Session = get_session()
+    try:
+        gid = uuid.UUID(payload.group_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid group_id UUID")
+    with Session() as session:
+        grp = session.get(Group, gid)
+        if not grp:
+            raise HTTPException(status_code=404, detail="Group not found")
+        org = Organization(name_organization=payload.name_organization, group_id=gid)
+        session.add(org)
+        session.commit()
+        session.refresh(org)
+        return {"id": str(org.id), "name_organization": org.name_organization, "group_id": str(org.group_id)}
+
+
+@router.get("/")
+def list_organizations():
+    Session = get_session()
+    with Session() as session:
+        rows = session.query(Organization).all()
+        return [{"id": str(o.id), "name_organization": o.name_organization, "group_id": str(o.group_id)} for o in rows]
+
+
+@router.get("/{org_id}")
+def get_organization(org_id: str):
+    Session = get_session()
+    try:
+        oid = uuid.UUID(org_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        org = session.get(Organization, oid)
+        if not org:
+            raise HTTPException(status_code=404, detail="Organization not found")
+        return {"id": str(org.id), "name_organization": org.name_organization, "group_id": str(org.group_id)}
+
+
+@router.put("/{org_id}")
+def update_organization(org_id: str, payload: OrganizationUpdate):
+    Session = get_session()
+    try:
+        oid = uuid.UUID(org_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        org = session.get(Organization, oid)
+        if not org:
+            raise HTTPException(status_code=404, detail="Organization not found")
+        if payload.name_organization is not None:
+            org.name_organization = payload.name_organization
+        if payload.group_id is not None:
+            try:
+                new_gid = uuid.UUID(payload.group_id)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid group_id UUID")
+            grp = session.get(Group, new_gid)
+            if not grp:
+                raise HTTPException(status_code=404, detail="Group not found")
+            org.group_id = new_gid
+        session.add(org)
+        session.commit()
+        session.refresh(org)
+        return {"id": str(org.id), "name_organization": org.name_organization, "group_id": str(org.group_id)}
+
+
+@router.delete("/{org_id}", status_code=204)
+def delete_organization(org_id: str):
+    Session = get_session()
+    try:
+        oid = uuid.UUID(org_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        org = session.get(Organization, oid)
+        if not org:
+            raise HTTPException(status_code=404, detail="Organization not found")
+        session.delete(org)
+        session.commit()
+        return {}
diff --git a/route/poll_crud.py b/route/poll_crud.py
new file mode 100644
index 0000000..189007d
--- /dev/null
+++ b/route/poll_crud.py
@@ -0,0 +1,95 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import List, Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.poll import Poll
+from bd.tables.question import Question
+from bd.tables.choice import Choice
+
+router = APIRouter(tags=["polls"], prefix="/polls")
+
+
+class ChoiceIn(BaseModel):
+    text: str
+    position: Optional[int]
+
+
+class QuestionIn(BaseModel):
+    text: str
+    type: Optional[str] = "single"
+    position: Optional[int]
+    choices: Optional[List[ChoiceIn]]
+
+
+class PollIn(BaseModel):
+    title: str
+    description: Optional[str]
+    questions: Optional[List[QuestionIn]]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_poll(payload: PollIn):
+    Session = get_session()
+    with Session() as session:
+        poll = Poll(title=payload.title, description=payload.description)
+        # polls are anonymous; no author_id stored
+        session.add(poll)
+        # questions and choices
+        if payload.questions:
+            for q in payload.questions:
+                question = Question(text=q.text, type=q.type or "single", position=q.position, poll=poll)
+                session.add(question)
+                if q.choices:
+                    for idx, c in enumerate(q.choices):
+                        choice = Choice(text=c.text, position=c.position if c.position is not None else idx, question=question)
+                        session.add(choice)
+        session.commit()
+        session.refresh(poll)
+        return {"id": str(poll.id)}
+
+
+@router.get("/{poll_id}")
+def get_poll(poll_id: str):
+    Session = get_session()
+    try:
+        pid = uuid.UUID(poll_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        poll = session.get(Poll, pid)
+        if not poll:
+            raise HTTPException(status_code=404, detail="Poll not found")
+        data = {
+            "id": str(poll.id),
+            "title": poll.title,
+            "description": poll.description,
+            "questions": [
+                {
+                    "id": str(q.id),
+                    "text": q.text,
+                    "type": q.type,
+                    "choices": [{"id": str(c.id), "text": c.text} for c in q.choices]
+                }
+                for q in poll.questions
+            ],
+        }
+        return data
+
+
+@router.get("/")
+def list_polls():
+    Session = get_session()
+    with Session() as session:
+        rows = session.query(Poll).all()
+        return [{"id": str(p.id), "title": p.title, "description": p.description} for p in rows]
diff --git a/route/question_crud.py b/route/question_crud.py
new file mode 100644
index 0000000..f545e63
--- /dev/null
+++ b/route/question_crud.py
@@ -0,0 +1,118 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.question import Question
+from bd.tables.poll import Poll
+
+router = APIRouter(tags=["questions"], prefix="/questions")
+
+
+class QuestionCreate(BaseModel):
+    poll_id: str
+    text: str
+    type: Optional[str] = "single"
+    position: Optional[int]
+
+
+class QuestionUpdate(BaseModel):
+    text: Optional[str]
+    type: Optional[str]
+    position: Optional[int]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_question(payload: QuestionCreate):
+    Session = get_session()
+    try:
+        pid = uuid.UUID(payload.poll_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid poll UUID")
+    with Session() as session:
+        poll = session.get(Poll, pid)
+        if not poll:
+            raise HTTPException(status_code=404, detail="Poll not found")
+        q = Question(poll_id=pid, text=payload.text, type=payload.type or "single", position=payload.position)
+        session.add(q)
+        session.commit()
+        session.refresh(q)
+        return {"id": str(q.id)}
+
+
+@router.put("/{question_id}")
+def update_question(question_id: str, payload: QuestionUpdate):
+    Session = get_session()
+    try:
+        qid = uuid.UUID(question_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        q = session.get(Question, qid)
+        if not q:
+            raise HTTPException(status_code=404, detail="Question not found")
+        if payload.text is not None:
+            q.text = payload.text
+        if payload.type is not None:
+            q.type = payload.type
+        if payload.position is not None:
+            q.position = payload.position
+        session.add(q)
+        session.commit()
+        session.refresh(q)
+        return {"id": str(q.id)}
+
+
+@router.delete("/{question_id}", status_code=204)
+def delete_question(question_id: str):
+    Session = get_session()
+    try:
+        qid = uuid.UUID(question_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        q = session.get(Question, qid)
+        if not q:
+            raise HTTPException(status_code=404, detail="Question not found")
+        session.delete(q)
+        session.commit()
+        return {}
+
+
+@router.get("/")
+def list_questions(poll_id: Optional[str] = None):
+    Session = get_session()
+    with Session() as session:
+        q = session.query(Question)
+        if poll_id:
+            try:
+                pid = uuid.UUID(poll_id)
+                q = q.filter(Question.poll_id == pid)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid poll_id UUID")
+        rows = q.all()
+        return [{"id": str(r.id), "text": r.text, "poll_id": str(r.poll_id)} for r in rows]
+
+
+@router.get("/{question_id}")
+def get_question(question_id: str):
+    Session = get_session()
+    try:
+        qid = uuid.UUID(question_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        q = session.get(Question, qid)
+        if not q:
+            raise HTTPException(status_code=404, detail="Question not found")
+        return {"id": str(q.id), "text": q.text, "poll_id": str(q.poll_id)}
diff --git a/route/response_crud.py b/route/response_crud.py
new file mode 100644
index 0000000..46b5387
--- /dev/null
+++ b/route/response_crud.py
@@ -0,0 +1,97 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import List, Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.poll import Poll
+from bd.tables.question import Question
+from bd.tables.response import Response, Answer
+
+router = APIRouter(tags=["responses"], prefix="/polls")
+
+
+class AnswerIn(BaseModel):
+    question_id: str
+    choice_id: Optional[str]
+    text: Optional[str]
+
+
+class ResponseIn(BaseModel):
+    user_id: Optional[str]
+    answers: List[AnswerIn]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/{poll_id}/responses", status_code=201)
+def submit_response(poll_id: str, payload: ResponseIn):
+    Session = get_session()
+    try:
+        pid = uuid.UUID(poll_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid poll UUID")
+    with Session() as session:
+        poll = session.get(Poll, pid)
+        if not poll:
+            raise HTTPException(status_code=404, detail="Poll not found")
+        resp = Response(poll_id=pid)
+        if payload.user_id:
+            try:
+                resp.user_id = uuid.UUID(payload.user_id)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid user_id UUID")
+        session.add(resp)
+        # validate answers
+        for a in payload.answers:
+            try:
+                qid = uuid.UUID(a.question_id)
+            except Exception:
+                raise HTTPException(status_code=400, detail="Invalid question_id UUID")
+            question = session.get(Question, qid)
+            if not question or question.poll_id != pid:
+                raise HTTPException(status_code=400, detail="Question does not belong to poll")
+            choice_uuid = None
+            if a.choice_id:
+                try:
+                    choice_uuid = uuid.UUID(a.choice_id)
+                except Exception:
+                    raise HTTPException(status_code=400, detail="Invalid choice_id UUID")
+            answer = Answer(response=resp, question_id=qid, choice_id=choice_uuid, text=a.text)
+            session.add(answer)
+        session.commit()
+        session.refresh(resp)
+        return {"id": str(resp.id)}
+
+
+@router.get("/{poll_id}/responses")
+def list_responses(poll_id: str):
+    Session = get_session()
+    try:
+        pid = uuid.UUID(poll_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid poll UUID")
+    with Session() as session:
+        rows = session.query(Response).filter(Response.poll_id == pid).all()
+        return [{"id": str(r.id), "user_id": str(r.user_id) if r.user_id else None, "submitted_at": r.submitted_at.isoformat()} for r in rows]
+
+
+@router.get("/responses/{response_id}")
+def get_response(response_id: str):
+    Session = get_session()
+    try:
+        rid = uuid.UUID(response_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        r = session.get(Response, rid)
+        if not r:
+            raise HTTPException(status_code=404, detail="Response not found")
+        return {"id": str(r.id), "poll_id": str(r.poll_id), "user_id": str(r.user_id) if r.user_id else None, "submitted_at": r.submitted_at.isoformat(), "answers": [{"id": str(a.id), "question_id": str(a.question_id), "choice_id": str(a.choice_id) if a.choice_id else None, "text": a.text} for a in r.answers]}
diff --git a/route/ui.py b/route/ui.py
new file mode 100644
index 0000000..5ce96b2
--- /dev/null
+++ b/route/ui.py
@@ -0,0 +1,111 @@
+from fastapi import APIRouter, Request
+
+router = APIRouter()
+
+
+@router.get("/ui/create-user")
+def create_user_page(request: Request):
+    return """
+<!doctype html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Create user & Take test</title>
+</head>
+<body>
+  <h1>Create user</h1>
+  <form id="userForm">
+    <label>First name: <input name="first_name" required></label><br>
+    <label>Last name: <input name="last_name" required></label><br>
+    <button type="submit">Create user</button>
+  </form>
+
+  <h2>Or create Holland test</h2>
+  <button id="createHolland">Create Holland test</button>
+
+  <script>
+  document.getElementById('userForm').addEventListener('submit', async (e) => {
+    e.preventDefault();
+    const fd = new FormData(e.target);
+    const data = { first_name: fd.get('first_name'), last_name: fd.get('last_name') };
+    const res = await fetch('/users/', { method: 'POST', headers: {'Content-Type':'application/json'}, body: JSON.stringify(data) });
+    if (!res.ok) { alert('Create user failed'); return; }
+    const js = await res.json();
+    const uid = js.id;
+    alert('User created: ' + uid);
+    // allow user to input poll id manually
+    const poll = prompt('Enter poll id to take (or leave empty to create Holland test)');
+    if (poll) {
+      location.href = '/ui/take-test?poll_id=' + encodeURIComponent(poll) + '&user_id=' + encodeURIComponent(uid);
+    } else {
+      // create Holland test then redirect
+      const r2 = await fetch('/polls/holland', { method: 'POST' });
+      const p = await r2.json();
+      location.href = '/ui/take-test?poll_id=' + encodeURIComponent(p.id) + '&user_id=' + encodeURIComponent(uid);
+    }
+  });
+
+  document.getElementById('createHolland').addEventListener('click', async () => {
+    const r = await fetch('/polls/holland', { method: 'POST' });
+    if (!r.ok) { alert('Create failed'); return; }
+    const p = await r.json();
+    alert('Created poll ' + p.id);
+    location.href = '/ui/take-test?poll_id=' + encodeURIComponent(p.id);
+  });
+  </script>
+</body>
+</html>
+"""
+
+
+@router.get("/ui/take-test")
+def take_test_page(request: Request, poll_id: str = None, user_id: str = None):
+    return f"""
+<!doctype html>
+<html>
+<head><meta charset="utf-8"><title>Take test</title></head>
+<body>
+  <h1>Take test</h1>
+  <div id="poll"></div>
+  <button id="submitBtn">Submit</button>
+  <script>
+  const pollId = '{poll_id or ''}';
+  const userId = '{user_id or ''}';
+  async function load() {{
+    if (!pollId) {{ document.getElementById('poll').innerText = 'No poll_id provided'; return; }}
+    const r = await fetch('/polls/' + encodeURIComponent(pollId));
+    if (!r.ok) {{ document.getElementById('poll').innerText = 'Failed to load poll'; return; }}
+    const p = await r.json();
+    const container = document.getElementById('poll');
+    const h = document.createElement('h2'); h.innerText = p.title; container.appendChild(h);
+    p.questions.forEach(q => {{
+      const div = document.createElement('div');
+      div.innerHTML = '<p>' + q.text + '</p>';
+      q.choices.forEach(c => {{
+        const id = 'q_' + q.id + '_c_' + c.id;
+        const input = `<label><input type="radio" name="${{q.id}}" value="${{c.id}}"> ${{c.text}}</label><br>`;
+        div.insertAdjacentHTML('beforeend', input);
+      }});
+      container.appendChild(div);
+    }});
+  }}
+  load();
+
+  document.getElementById('submitBtn').addEventListener('click', async () => {{
+    const answers = [];
+    const groups = new Set();
+    document.querySelectorAll('input[type=radio]').forEach(r => groups.add(r.name));
+    groups.forEach(name => {{
+      const checked = document.querySelector('input[name="' + name + '"]:checked');
+      if (checked) answers.push({{question_id: name, choice_id: checked.value}});
+    }});
+    const payload = {{ user_id: userId || null, answers }};
+    const res = await fetch('/polls/' + encodeURIComponent(pollId) + '/responses', {{ method: 'POST', headers: {{'Content-Type':'application/json'}}, body: JSON.stringify(payload) }});
+    if (!res.ok) {{ alert('Submit failed'); return; }}
+    const js = await res.json();
+    alert('Response saved: ' + js.id);
+  }});
+  </script>
+</body>
+</html>
+"""
diff --git a/route/users_crud.py b/route/users_crud.py
new file mode 100644
index 0000000..0919de1
--- /dev/null
+++ b/route/users_crud.py
@@ -0,0 +1,98 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+
+from bd import Settings
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from bd.tables.users import User
+
+router = APIRouter(tags=["users"], prefix="/users")
+
+
+class UserCreate(BaseModel):
+    first_name: str
+    last_name: str
+
+
+class UserUpdate(BaseModel):
+    first_name: Optional[str]
+    last_name: Optional[str]
+
+
+def get_session():
+    settings = Settings()
+    engine = create_engine(settings.DATABASE_URL_syncpg, future=True)
+    return sessionmaker(bind=engine, future=True)
+
+
+@router.post("/", status_code=201)
+def create_user(payload: UserCreate):
+    Session = get_session()
+    with Session() as session:
+        user = User(first_name=payload.first_name, last_name=payload.last_name)
+        session.add(user)
+        session.commit()
+        session.refresh(user)
+        return {"id": str(user.id), "first_name": user.first_name, "last_name": user.last_name}
+
+
+@router.put("/{user_id}")
+def update_user(user_id: str, payload: UserUpdate):
+    Session = get_session()
+    try:
+        uid = uuid.UUID(user_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        user = session.get(User, uid)
+        if not user:
+            raise HTTPException(status_code=404, detail="User not found")
+        if payload.first_name is not None:
+            user.first_name = payload.first_name
+        if payload.last_name is not None:
+            user.last_name = payload.last_name
+        session.add(user)
+        session.commit()
+        session.refresh(user)
+        return {"id": str(user.id), "first_name": user.first_name, "last_name": user.last_name}
+
+
+@router.delete("/{user_id}", status_code=204)
+def delete_user(user_id: str):
+    Session = get_session()
+    try:
+        uid = uuid.UUID(user_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        user = session.get(User, uid)
+        if not user:
+            raise HTTPException(status_code=404, detail="User not found")
+        session.delete(user)
+        session.commit()
+        return {}
+
+
+@router.get("/")
+def list_users():
+    Session = get_session()
+    with Session() as session:
+        rows = session.query(User).all()
+        return [{"id": str(u.id), "first_name": u.first_name, "last_name": u.last_name} for u in rows]
+
+
+@router.get("/{user_id}")
+def get_user(user_id: str):
+    Session = get_session()
+    try:
+        uid = uuid.UUID(user_id)
+    except Exception:
+        raise HTTPException(status_code=400, detail="Invalid UUID")
+    with Session() as session:
+        user = session.get(User, uid)
+        if not user:
+            raise HTTPException(status_code=404, detail="User not found")
+        return {"id": str(user.id), "first_name": user.first_name, "last_name": user.last_name}
diff --git a/uv.lock b/uv.lock
index 3589a5c..8eb3b5c 100644
--- a/uv.lock
+++ b/uv.lock
@@ -34,12 +34,15 @@ wheels = [
 
 [[package]]
 name = "api-copp"
-version = "0.1.0"
+version = "0.3.0"
 source = { editable = "." }
 dependencies = [
     { name = "fastapi" },
+    { name = "psycopg" },
     { name = "pydantic" },
     { name = "python-dotenv" },
+    { name = "redis" },
+    { name = "sqlalchemy" },
     { name = "uvicorn", extra = ["standard"] },
 ]
 
@@ -55,11 +58,14 @@ dev = [
 requires-dist = [
     { name = "black", marker = "extra == 'dev'", specifier = ">=23.0.0" },
     { name = "fastapi", specifier = ">=0.128.0" },
+    { name = "psycopg", specifier = ">=3.3.3" },
     { name = "pydantic", specifier = ">=2.12.5" },
     { name = "pytest", marker = "extra == 'dev'", specifier = ">=7.0.0" },
     { name = "pytest-asyncio", marker = "extra == 'dev'", specifier = ">=0.21.0" },
     { name = "python-dotenv", specifier = ">=1.2.1" },
+    { name = "redis", specifier = ">=7.1.0" },
     { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.1.0" },
+    { name = "sqlalchemy", specifier = ">=2.0.47" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.40.0" },
 ]
 provides-extras = ["dev"]
@@ -122,6 +128,31 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/5c/05/5cbb59154b093548acd0f4c7c474a118eda06da25aa75c616b72d8fcd92a/fastapi-0.128.0-py3-none-any.whl", hash = "sha256:aebd93f9716ee3b4f4fcfe13ffb7cf308d99c9f3ab5622d8877441072561582d", size = 103094, upload-time = "2025-12-27T15:21:12.154Z" },
 ]
 
+[[package]]
+name = "greenlet"
+version = "3.3.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/a3/51/1664f6b78fc6ebbd98019a1fd730e83fa78f2db7058f72b1463d3612b8db/greenlet-3.3.2.tar.gz", hash = "sha256:2eaf067fc6d886931c7962e8c6bede15d2f01965560f3359b27c80bde2d151f2", size = 188267, upload-time = "2026-02-20T20:54:15.531Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/3f/ae/8bffcbd373b57a5992cd077cbe8858fff39110480a9d50697091faea6f39/greenlet-3.3.2-cp314-cp314-macosx_11_0_universal2.whl", hash = "sha256:8d1658d7291f9859beed69a776c10822a0a799bc4bfe1bd4272bb60e62507dab", size = 279650, upload-time = "2026-02-20T20:18:00.783Z" },
+    { url = "https://files.pythonhosted.org/packages/d1/c0/45f93f348fa49abf32ac8439938726c480bd96b2a3c6f4d949ec0124b69f/greenlet-3.3.2-cp314-cp314-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:18cb1b7337bca281915b3c5d5ae19f4e76d35e1df80f4ad3c1a7be91fadf1082", size = 650295, upload-time = "2026-02-20T20:47:34.036Z" },
+    { url = "https://files.pythonhosted.org/packages/b3/de/dd7589b3f2b8372069ab3e4763ea5329940fc7ad9dcd3e272a37516d7c9b/greenlet-3.3.2-cp314-cp314-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:c2e47408e8ce1c6f1ceea0dffcdf6ebb85cc09e55c7af407c99f1112016e45e9", size = 662163, upload-time = "2026-02-20T20:56:01.295Z" },
+    { url = "https://files.pythonhosted.org/packages/cd/ac/85804f74f1ccea31ba518dcc8ee6f14c79f73fe36fa1beba38930806df09/greenlet-3.3.2-cp314-cp314-manylinux_2_24_s390x.manylinux_2_28_s390x.whl", hash = "sha256:e3cb43ce200f59483eb82949bf1835a99cf43d7571e900d7c8d5c62cdf25d2f9", size = 675371, upload-time = "2026-02-20T21:02:49.664Z" },
+    { url = "https://files.pythonhosted.org/packages/d2/d8/09bfa816572a4d83bccd6750df1926f79158b1c36c5f73786e26dbe4ee38/greenlet-3.3.2-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:63d10328839d1973e5ba35e98cccbca71b232b14051fd957b6f8b6e8e80d0506", size = 664160, upload-time = "2026-02-20T20:21:04.015Z" },
+    { url = "https://files.pythonhosted.org/packages/48/cf/56832f0c8255d27f6c35d41b5ec91168d74ec721d85f01a12131eec6b93c/greenlet-3.3.2-cp314-cp314-musllinux_1_2_aarch64.whl", hash = "sha256:8e4ab3cfb02993c8cc248ea73d7dae6cec0253e9afa311c9b37e603ca9fad2ce", size = 1619181, upload-time = "2026-02-20T20:49:36.052Z" },
+    { url = "https://files.pythonhosted.org/packages/0a/23/b90b60a4aabb4cec0796e55f25ffbfb579a907c3898cd2905c8918acaa16/greenlet-3.3.2-cp314-cp314-musllinux_1_2_x86_64.whl", hash = "sha256:94ad81f0fd3c0c0681a018a976e5c2bd2ca2d9d94895f23e7bb1af4e8af4e2d5", size = 1687713, upload-time = "2026-02-20T20:21:11.684Z" },
+    { url = "https://files.pythonhosted.org/packages/f3/ca/2101ca3d9223a1dc125140dbc063644dca76df6ff356531eb27bc267b446/greenlet-3.3.2-cp314-cp314-win_amd64.whl", hash = "sha256:8c4dd0f3997cf2512f7601563cc90dfb8957c0cff1e3a1b23991d4ea1776c492", size = 232034, upload-time = "2026-02-20T20:20:08.186Z" },
+    { url = "https://files.pythonhosted.org/packages/f6/4a/ecf894e962a59dea60f04877eea0fd5724618da89f1867b28ee8b91e811f/greenlet-3.3.2-cp314-cp314-win_arm64.whl", hash = "sha256:cd6f9e2bbd46321ba3bbb4c8a15794d32960e3b0ae2cc4d49a1a53d314805d71", size = 231437, upload-time = "2026-02-20T20:18:59.722Z" },
+    { url = "https://files.pythonhosted.org/packages/98/6d/8f2ef704e614bcf58ed43cfb8d87afa1c285e98194ab2cfad351bf04f81e/greenlet-3.3.2-cp314-cp314t-macosx_11_0_universal2.whl", hash = "sha256:e26e72bec7ab387ac80caa7496e0f908ff954f31065b0ffc1f8ecb1338b11b54", size = 286617, upload-time = "2026-02-20T20:19:29.856Z" },
+    { url = "https://files.pythonhosted.org/packages/5e/0d/93894161d307c6ea237a43988f27eba0947b360b99ac5239ad3fe09f0b47/greenlet-3.3.2-cp314-cp314t-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:8b466dff7a4ffda6ca975979bab80bdadde979e29fc947ac3be4451428d8b0e4", size = 655189, upload-time = "2026-02-20T20:47:35.742Z" },
+    { url = "https://files.pythonhosted.org/packages/f5/2c/d2d506ebd8abcb57386ec4f7ba20f4030cbe56eae541bc6fd6ef399c0b41/greenlet-3.3.2-cp314-cp314t-manylinux_2_24_ppc64le.manylinux_2_28_ppc64le.whl", hash = "sha256:b8bddc5b73c9720bea487b3bffdb1840fe4e3656fba3bd40aa1489e9f37877ff", size = 658225, upload-time = "2026-02-20T20:56:02.527Z" },
+    { url = "https://files.pythonhosted.org/packages/d1/67/8197b7e7e602150938049d8e7f30de1660cfb87e4c8ee349b42b67bdb2e1/greenlet-3.3.2-cp314-cp314t-manylinux_2_24_s390x.manylinux_2_28_s390x.whl", hash = "sha256:59b3e2c40f6706b05a9cd299c836c6aa2378cabe25d021acd80f13abf81181cf", size = 666581, upload-time = "2026-02-20T21:02:51.526Z" },
+    { url = "https://files.pythonhosted.org/packages/8e/30/3a09155fbf728673a1dea713572d2d31159f824a37c22da82127056c44e4/greenlet-3.3.2-cp314-cp314t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:b26b0f4428b871a751968285a1ac9648944cea09807177ac639b030bddebcea4", size = 657907, upload-time = "2026-02-20T20:21:05.259Z" },
+    { url = "https://files.pythonhosted.org/packages/f3/fd/d05a4b7acd0154ed758797f0a43b4c0962a843bedfe980115e842c5b2d08/greenlet-3.3.2-cp314-cp314t-musllinux_1_2_aarch64.whl", hash = "sha256:1fb39a11ee2e4d94be9a76671482be9398560955c9e568550de0224e41104727", size = 1618857, upload-time = "2026-02-20T20:49:37.309Z" },
+    { url = "https://files.pythonhosted.org/packages/6f/e1/50ee92a5db521de8f35075b5eff060dd43d39ebd46c2181a2042f7070385/greenlet-3.3.2-cp314-cp314t-musllinux_1_2_x86_64.whl", hash = "sha256:20154044d9085151bc309e7689d6f7ba10027f8f5a8c0676ad398b951913d89e", size = 1680010, upload-time = "2026-02-20T20:21:13.427Z" },
+    { url = "https://files.pythonhosted.org/packages/29/4b/45d90626aef8e65336bed690106d1382f7a43665e2249017e9527df8823b/greenlet-3.3.2-cp314-cp314t-win_amd64.whl", hash = "sha256:c04c5e06ec3e022cbfe2cd4a846e1d4e50087444f875ff6d2c2ad8445495cf1a", size = 237086, upload-time = "2026-02-20T20:20:45.786Z" },
+]
+
 [[package]]
 name = "h11"
 version = "0.16.0"
@@ -209,6 +240,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/54/20/4d324d65cc6d9205fabedc306948156824eb9f0ee1633355a8f7ec5c66bf/pluggy-1.6.0-py3-none-any.whl", hash = "sha256:e920276dd6813095e9377c0bc5566d94c932c33b27a3e3945d8389c374dd4746", size = 20538, upload-time = "2025-05-15T12:30:06.134Z" },
 ]
 
+[[package]]
+name = "psycopg"
+version = "3.3.3"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "tzdata", marker = "sys_platform == 'win32'" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/d3/b6/379d0a960f8f435ec78720462fd94c4863e7a31237cf81bf76d0af5883bf/psycopg-3.3.3.tar.gz", hash = "sha256:5e9a47458b3c1583326513b2556a2a9473a1001a56c9efe9e587245b43148dd9", size = 165624, upload-time = "2026-02-18T16:52:16.546Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/c8/5b/181e2e3becb7672b502f0ed7f16ed7352aca7c109cfb94cf3878a9186db9/psycopg-3.3.3-py3-none-any.whl", hash = "sha256:f96525a72bcfade6584ab17e89de415ff360748c766f0106959144dcbb38c698", size = 212768, upload-time = "2026-02-18T16:46:27.365Z" },
+]
+
 [[package]]
 name = "pydantic"
 version = "2.12.5"
@@ -354,6 +397,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f1/12/de94a39c2ef588c7e6455cfbe7343d3b2dc9d6b6b2f40c4c6565744c873d/pyyaml-6.0.3-cp314-cp314t-win_arm64.whl", hash = "sha256:ebc55a14a21cb14062aa4162f906cd962b28e2e9ea38f9b4391244cd8de4ae0b", size = 149341, upload-time = "2025-09-25T21:32:56.828Z" },
 ]
 
+[[package]]
+name = "redis"
+version = "7.1.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/43/c8/983d5c6579a411d8a99bc5823cc5712768859b5ce2c8afe1a65b37832c81/redis-7.1.0.tar.gz", hash = "sha256:b1cc3cfa5a2cb9c2ab3ba700864fb0ad75617b41f01352ce5779dabf6d5f9c3c", size = 4796669, upload-time = "2025-11-19T15:54:39.961Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/89/f0/8956f8a86b20d7bb9d6ac0187cf4cd54d8065bc9a1a09eb8011d4d326596/redis-7.1.0-py3-none-any.whl", hash = "sha256:23c52b208f92b56103e17c5d06bdc1a6c2c0b3106583985a76a18f83b265de2b", size = 354159, upload-time = "2025-11-19T15:54:38.064Z" },
+]
+
 [[package]]
 name = "ruff"
 version = "0.14.14"
@@ -380,6 +432,32 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/9e/6a/40fee331a52339926a92e17ae748827270b288a35ef4a15c9c8f2ec54715/ruff-0.14.14-py3-none-win_arm64.whl", hash = "sha256:56e6981a98b13a32236a72a8da421d7839221fa308b223b9283312312e5ac76c", size = 10920448, upload-time = "2026-01-22T22:30:15.417Z" },
 ]
 
+[[package]]
+name = "sqlalchemy"
+version = "2.0.47"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "greenlet", marker = "platform_machine == 'AMD64' or platform_machine == 'WIN32' or platform_machine == 'aarch64' or platform_machine == 'amd64' or platform_machine == 'ppc64le' or platform_machine == 'win32' or platform_machine == 'x86_64'" },
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