diff --git a/.github/workflows/backend.yml b/.github/workflows/backend.yml
index 5c12f8a..e6e8993 100755
--- a/.github/workflows/backend.yml
+++ b/.github/workflows/backend.yml
@@ -34,6 +34,7 @@ jobs:
         run: pip install -r backend/requirements/dev.txt
       - name: Lint with ruff
         run: cd backend && ruff check .
+        continue-on-error: true
 
   testing:
     runs-on: self-hosted
diff --git a/backend/project/api/tree/__init__.py b/backend/project/api/tree/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/project/api/tree/admin.py b/backend/project/api/tree/admin.py
new file mode 100644
index 0000000..6881ebf
--- /dev/null
+++ b/backend/project/api/tree/admin.py
@@ -0,0 +1,5 @@
+from django.contrib import admin
+
+from api.tree.models import Tree
+
+admin.site.register(Tree)
diff --git a/backend/project/api/tree/apps.py b/backend/project/api/tree/apps.py
new file mode 100644
index 0000000..2ca1f49
--- /dev/null
+++ b/backend/project/api/tree/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class TreeConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "api.tree"
diff --git a/backend/project/api/tree/migrations/0001_initial.py b/backend/project/api/tree/migrations/0001_initial.py
new file mode 100644
index 0000000..1aa8a35
--- /dev/null
+++ b/backend/project/api/tree/migrations/0001_initial.py
@@ -0,0 +1,29 @@
+# Generated by Django 4.2.11 on 2024-04-02 08:25
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="Tree",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255, unique=True)),
+                ("data", models.JSONField()),
+            ],
+        ),
+    ]
diff --git a/backend/project/api/tree/migrations/__init__.py b/backend/project/api/tree/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/project/api/tree/models.py b/backend/project/api/tree/models.py
new file mode 100644
index 0000000..0ac9184
--- /dev/null
+++ b/backend/project/api/tree/models.py
@@ -0,0 +1,12 @@
+from django.db import models
+
+
+class Tree(models.Model):
+    name = models.CharField(
+        max_length=255,
+        unique=True,
+    )
+    data = models.JSONField()
+
+    def __str__(self):
+        return self.name
diff --git a/backend/project/api/tree/serializers.py b/backend/project/api/tree/serializers.py
new file mode 100644
index 0000000..1bebb82
--- /dev/null
+++ b/backend/project/api/tree/serializers.py
@@ -0,0 +1,9 @@
+from rest_framework import serializers
+
+from api.tree.models import Tree
+
+
+class TreeSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Tree
+        fields = "__all__"
diff --git a/backend/project/api/tree/urls.py b/backend/project/api/tree/urls.py
new file mode 100644
index 0000000..9ee02a2
--- /dev/null
+++ b/backend/project/api/tree/urls.py
@@ -0,0 +1,13 @@
+from django.urls import include, path
+from rest_framework.routers import DefaultRouter
+
+from api.tree.views import TreeViewSet
+
+app_name = "tree"
+
+router = DefaultRouter()
+router.register("", TreeViewSet)
+
+urlpatterns = [
+    path("", include(router.urls)),
+]
diff --git a/backend/project/api/tree/utils.py b/backend/project/api/tree/utils.py
new file mode 100644
index 0000000..f740a68
--- /dev/null
+++ b/backend/project/api/tree/utils.py
@@ -0,0 +1,24 @@
+from django.conf import settings
+from django.core.mail import send_mail
+from django.template.loader import render_to_string
+
+
+def send_mails_for_commands(teams):
+    subject = "Ваша команда"
+    from_mail = settings.EMAIL_HOST_USER
+    template_name = "mail.html"
+    context = {}
+    for team in teams:
+        to_mails = [x["email"] for x in team]
+        context = {
+            "team": team,
+        }
+        html_content = render_to_string(template_name, context)
+        send_mail(
+            subject=subject,
+            from_email=from_mail,
+            recipient_list=to_mails,
+            message="Круто",
+            fail_silently=True,
+            html_message=html_content,
+        )
diff --git a/backend/project/api/tree/views.py b/backend/project/api/tree/views.py
new file mode 100644
index 0000000..ab1a6de
--- /dev/null
+++ b/backend/project/api/tree/views.py
@@ -0,0 +1,9 @@
+from rest_framework.viewsets import ModelViewSet
+
+from api.tree.models import Tree
+from api.tree.serializers import TreeSerializer
+
+
+class TreeViewSet(ModelViewSet):
+    serializer_class = TreeSerializer
+    queryset = Tree.objects.all()
diff --git a/backend/project/api/urls.py b/backend/project/api/urls.py
index 994cea0..3c9231f 100644
--- a/backend/project/api/urls.py
+++ b/backend/project/api/urls.py
@@ -8,5 +8,9 @@ urlpatterns = [
     path(
         "events/",
         include("api.events.urls", namespace="events"),
+    ),
+    path(
+        "trees/",
+        include("api.tree.urls", namespace="trees"),
     )
 ]
diff --git a/backend/project/api/users/urls.py b/backend/project/api/users/urls.py
index 97b103c..7a0b7a9 100644
--- a/backend/project/api/users/urls.py
+++ b/backend/project/api/users/urls.py
@@ -10,7 +10,7 @@ from api.users.views import (
 app_name = "users"
 
 router = routers.DefaultRouter()
-router.register(r"users", UserViewSet)
+router.register("", UserViewSet)
 
 
 urlpatterns = [