diff --git a/ereuse_devicehub/commands/adduser.py b/ereuse_devicehub/commands/adduser.py
new file mode 100644
index 00000000..21c4b25d
--- /dev/null
+++ b/ereuse_devicehub/commands/adduser.py
@@ -0,0 +1,24 @@
+import click
+
+from ereuse_devicehub.db import db
+from ereuse_devicehub.resources.agent.models import Person
+from ereuse_devicehub.resources.user.models import User
+
+
+class AddUser:
+    def __init__(self, app) -> None:
+        super().__init__()
+        self.app = app
+        self.schema = app.config.get('DB_SCHEMA')
+        self.app.cli.command('adduser', short_help='add a user.')(self.run)
+
+    @click.argument('email')
+    @click.argument('password')
+    def run(self, email, password):
+        name = email.split('@')[0]
+
+        user = User(email=email, password=password)
+        user.individuals.add(Person(name=name))
+        db.session.add(user)
+
+        db.session.commit()
diff --git a/ereuse_devicehub/commands/initdatas.py b/ereuse_devicehub/commands/initdatas.py
new file mode 100644
index 00000000..4e199fa4
--- /dev/null
+++ b/ereuse_devicehub/commands/initdatas.py
@@ -0,0 +1,40 @@
+from uuid import uuid4
+
+from boltons.urlutils import URL
+
+from ereuse_devicehub.db import db
+from ereuse_devicehub.resources.agent.models import Person
+from ereuse_devicehub.resources.inventory.model import Inventory
+from ereuse_devicehub.resources.user.models import User
+
+
+class InitDatas:
+    def __init__(self, app) -> None:
+        super().__init__()
+        self.app = app
+        self.schema = app.config.get('DB_SCHEMA')
+        self.app.cli.command(
+            'initdata', short_help='Save a minimum structure of datas.'
+        )(self.run)
+
+    def run(self):
+        inv = Inventory(
+            id=self.schema,
+            name="usody",
+            tag_provider=URL('http://localhost:8081'),
+            tag_token=uuid4(),
+            org_id=uuid4(),
+        )
+
+        db.session.add(inv)
+        db.session.commit()
+
+        email = 'user@dhub.com'
+        password = '1234'
+        name = 'user'
+
+        user = User(email=email, password=password)
+        user.individuals.add(Person(name=name))
+        db.session.add(user)
+
+        db.session.commit()
diff --git a/ereuse_devicehub/devicehub.py b/ereuse_devicehub/devicehub.py
index e5e76145..a6c6b7c9 100644
--- a/ereuse_devicehub/devicehub.py
+++ b/ereuse_devicehub/devicehub.py
@@ -5,20 +5,22 @@ from typing import Type
 import boltons.urlutils
 import click
 import click_spinner
-import ereuse_devicehub.ereuse_utils.cli
-from ereuse_devicehub.ereuse_utils.session import DevicehubClient
 from flask import _app_ctx_stack, g
 from flask_login import LoginManager, current_user
 from flask_sqlalchemy import SQLAlchemy
 
+import ereuse_devicehub.ereuse_utils.cli
 from ereuse_devicehub.auth import Auth
 from ereuse_devicehub.client import Client, UserClient
+from ereuse_devicehub.commands.adduser import AddUser
+from ereuse_devicehub.commands.initdatas import InitDatas
 
 # from ereuse_devicehub.commands.reports import Report
 from ereuse_devicehub.commands.users import GetToken
 from ereuse_devicehub.config import DevicehubConfig
 from ereuse_devicehub.db import db
 from ereuse_devicehub.dummy.dummy import Dummy
+from ereuse_devicehub.ereuse_utils.session import DevicehubClient
 from ereuse_devicehub.resources.device.search import DeviceSearch
 from ereuse_devicehub.resources.inventory import Inventory, InventoryDef
 from ereuse_devicehub.resources.user.models import User
@@ -73,6 +75,8 @@ class Devicehub(Teal):
         self.dummy = Dummy(self)
         # self.report = Report(self)
         self.get_token = GetToken(self)
+        self.initdata = InitDatas(self)
+        self.adduser = AddUser(self)
 
         @self.cli.group(
             short_help='Inventory management.',
diff --git a/ereuse_devicehub/migrations/versions/fbb7e2a0cde0_initial.py b/ereuse_devicehub/migrations/versions/fbb7e2a0cde0_initial.py
index 08758ec3..dc39795b 100644
--- a/ereuse_devicehub/migrations/versions/fbb7e2a0cde0_initial.py
+++ b/ereuse_devicehub/migrations/versions/fbb7e2a0cde0_initial.py
@@ -8,12 +8,11 @@ Create Date: 2020-05-07 10:04:40.269511
 import citext
 import sqlalchemy as sa
 import sqlalchemy_utils
-from ereuse_devicehub import teal
-from alembic import context
-from alembic import op
+from alembic import context, op
 from sqlalchemy.dialects import postgresql
 
-from ereuse_devicehub.resources.enums import TransferState, Severity
+from ereuse_devicehub import teal
+from ereuse_devicehub.resources.enums import Severity, TransferState
 
 # revision identifiers, used by Alembic.
 revision = 'fbb7e2a0cde0'
@@ -348,6 +347,7 @@ def upgrade():
         postgresql_using='hash',
         schema=f'{get_inv()}',
     )
+    op.execute(f"CREATE SEQUENCE {get_inv()}.device_seq START 1;")
     op.create_table(
         'agent',
         sa.Column(