diff --git a/ereuse_devicehub/cli.py b/ereuse_devicehub/cli.py
new file mode 100644
index 00000000..edf68df4
--- /dev/null
+++ b/ereuse_devicehub/cli.py
@@ -0,0 +1,28 @@
+import os
+
+import click.testing
+import flask.cli
+
+from ereuse_devicehub.config import DevicehubConfig
+from ereuse_devicehub.devicehub import Devicehub
+
+
+class DevicehubGroup(flask.cli.FlaskGroup):
+    CONFIG = DevicehubConfig
+
+    def main(self, *args, **kwargs):
+        # todo this should be taken as an argument for the cli
+        inventory = os.environ.get('dhi')
+        if not inventory:
+            raise ValueError('Please do "export dhi={inventory}"')
+        self.create_app = self.create_app_factory(inventory)
+        return super().main(*args, **kwargs)
+
+    @staticmethod
+    def create_app_factory(inventory):
+        return lambda: Devicehub(inventory)
+
+
+@click.group(cls=DevicehubGroup)
+def cli():
+    pass
diff --git a/ereuse_devicehub/config.py b/ereuse_devicehub/config.py
index 81cde720..5876da33 100644
--- a/ereuse_devicehub/config.py
+++ b/ereuse_devicehub/config.py
@@ -2,13 +2,12 @@ from distutils.version import StrictVersion
 from itertools import chain
 from typing import Set
 
-import boltons.urlutils
 from teal.auth import TokenAuth
 from teal.config import Config
 from teal.enums import Currency
 from teal.utils import import_resource
 
-from ereuse_devicehub.resources import agent, event, lot, tag, user
+from ereuse_devicehub.resources import agent, event, inventory, lot, tag, user
 from ereuse_devicehub.resources.device import definitions
 from ereuse_devicehub.resources.documents import documents
 from ereuse_devicehub.resources.enums import PriceSoftware, RatingSoftware
@@ -21,23 +20,16 @@ class DevicehubConfig(Config):
                                      import_resource(tag),
                                      import_resource(agent),
                                      import_resource(lot),
-                                     import_resource(documents))
+                                     import_resource(documents),
+                                     import_resource(inventory)),
                                )
     PASSWORD_SCHEMES = {'pbkdf2_sha256'}  # type: Set[str]
     SQLALCHEMY_DATABASE_URI = 'postgresql://dhub:ereuse@localhost/devicehub'  # type: str
-    SCHEMA = 'dhub'
     MIN_WORKBENCH = StrictVersion('11.0a1')  # type: StrictVersion
     """
     the minimum version of ereuse.org workbench that this devicehub
     accepts. we recommend not changing this value.
     """
-    ORGANIZATION_NAME = None  # type: str
-    ORGANIZATION_TAX_ID = None  # type: str
-    """
-    The organization using this Devicehub.
-    
-    It is used by default, for example, when creating tags.
-    """
     API_DOC_CONFIG_TITLE = 'Devicehub'
     API_DOC_CONFIG_VERSION = '0.2'
     API_DOC_CONFIG_COMPONENTS = {
@@ -60,19 +52,3 @@ class DevicehubConfig(Config):
     """
     Official versions
     """
-    TAG_BASE_URL = None
-    TAG_TOKEN = None
-    """Access to the tag provider."""
-
-    def __init__(self, schema: str = None, token=None) -> None:
-        if not self.ORGANIZATION_NAME or not self.ORGANIZATION_TAX_ID:
-            raise ValueError('You need to set the main organization parameters.')
-        if not self.TAG_BASE_URL:
-            raise ValueError('You need a tag service.')
-        self.TAG_TOKEN = token or self.TAG_TOKEN
-        if not self.TAG_TOKEN:
-            raise ValueError('You need a tag token')
-        self.TAG_BASE_URL = boltons.urlutils.URL(self.TAG_BASE_URL)
-        if schema:
-            self.SCHEMA = schema
-        super().__init__()
diff --git a/ereuse_devicehub/devicehub.py b/ereuse_devicehub/devicehub.py
index 5fe370ed..88520f77 100644
--- a/ereuse_devicehub/devicehub.py
+++ b/ereuse_devicehub/devicehub.py
@@ -1,16 +1,23 @@
+import uuid
 from typing import Type
 
+import boltons.urlutils
+import click
+import click_spinner
+import ereuse_utils.cli
 from ereuse_utils.session import DevicehubClient
+from flask.globals import _app_ctx_stack, g
 from flask_sqlalchemy import SQLAlchemy
 from sqlalchemy import event
-from teal.config import Config as ConfigClass
 from teal.teal import Teal
 
 from ereuse_devicehub.auth import Auth
 from ereuse_devicehub.client import Client
+from ereuse_devicehub.config import DevicehubConfig
 from ereuse_devicehub.db import db
 from ereuse_devicehub.dummy.dummy import Dummy
 from ereuse_devicehub.resources.device.search import DeviceSearch
+from ereuse_devicehub.resources.inventory import Inventory, InventoryDef
 
 
 class Devicehub(Teal):
@@ -18,7 +25,8 @@ class Devicehub(Teal):
     Dummy = Dummy
 
     def __init__(self,
-                 config: ConfigClass,
+                 inventory: str,
+                 config: DevicehubConfig = DevicehubConfig(),
                  db: SQLAlchemy = db,
                  import_name=__name__.split('.')[0],
                  static_url_path=None,
@@ -31,27 +39,76 @@ class Devicehub(Teal):
                  instance_relative_config=False,
                  root_path=None,
                  Auth: Type[Auth] = Auth):
-        super().__init__(config, db, import_name, static_url_path, static_folder, static_host,
+        assert inventory
+        super().__init__(config, db, inventory, import_name, static_url_path, static_folder,
+                         static_host,
                          host_matching, subdomain_matching, template_folder, instance_path,
                          instance_relative_config, root_path, Auth)
-        self.tag_provider = DevicehubClient(**self.config.get_namespace('TAG_'))
+        self.id = inventory
+        """The Inventory ID of this instance. In Teal is the app.schema."""
         self.dummy = Dummy(self)
         self.before_request(self.register_db_events_listeners)
         self.cli.command('regenerate-search')(self.regenerate_search)
+        self.cli.command('init-db')(self.init_db)
+        self.before_request(self._prepare_request)
 
     def register_db_events_listeners(self):
         """Registers the SQLAlchemy event listeners."""
         # todo can I make it with a global Session only?
         event.listen(db.session, 'before_commit', DeviceSearch.update_modified_devices)
 
-    def _init_db(self, exclude_schema=None, check=False):
-        created = super()._init_db(exclude_schema, check)
-        if created:
+    # noinspection PyMethodOverriding
+    @click.option('--name', '-n',
+                  default='Test 1',
+                  help='The human name of the inventory.')
+    @click.option('--org-name', '-on',
+                  default='My Organization',
+                  help='The name of the default organization that owns this inventory.')
+    @click.option('--org-id', '-oi',
+                  default='foo-bar',
+                  help='The Tax ID of the organization.')
+    @click.option('--tag-url', '-tu',
+                  type=ereuse_utils.cli.URL(scheme=True, host=True, path=False),
+                  default='http://example.com',
+                  help='The base url (scheme and host) of the tag provider.')
+    @click.option('--tag-token', '-tt',
+                  type=click.UUID,
+                  default='899c794e-1737-4cea-9232-fdc507ab7106',
+                  help='The token provided by the tag provider. It is an UUID.')
+    @click.option('--erase/--no-erase',
+                  default=False,
+                  help='Delete the full database before? Including all schemas and users.')
+    @click.option('--common',
+                  default=False,
+                  help='Creates common databases. Only execute if the database is empty.')
+    def init_db(self, name: str,
+                org_name: str,
+                org_id: str,
+                tag_url: boltons.urlutils.URL,
+                tag_token: uuid.UUID,
+                erase: bool,
+                common: bool):
+        """Initializes this inventory with the provided configurations."""
+        assert _app_ctx_stack.top, 'Use an app context.'
+        print('Initializing database...'.ljust(30), end='')
+        with click_spinner.spinner():
+            if erase:
+                self.db.drop_all()
+            exclude_schema = 'common' if not common else None
+            self._init_db(exclude_schema=exclude_schema)
+            InventoryDef.set_inventory_config(name, org_name, org_id, tag_url, tag_token)
             DeviceSearch.set_all_devices_tokens_if_empty(self.db.session)
-        return created
+            self._init_resources(exclude_schema=exclude_schema)
+            self.db.session.commit()
+        print('done.')
 
     def regenerate_search(self):
         """Re-creates from 0 all the search tables."""
         DeviceSearch.regenerate_search_table(self.db.session)
         db.session.commit()
         print('Done.')
+
+    def _prepare_request(self):
+        """Prepares request stuff."""
+        inv = g.inventory = Inventory.current  # type: Inventory
+        g.tag_provider = DevicehubClient(base_url=inv.tag_provider, token=inv.tag_token)
diff --git a/ereuse_devicehub/dispatchers.py b/ereuse_devicehub/dispatchers.py
new file mode 100644
index 00000000..c7465138
--- /dev/null
+++ b/ereuse_devicehub/dispatchers.py
@@ -0,0 +1,46 @@
+from threading import Lock
+
+import sqlalchemy as sa
+import werkzeug.exceptions
+from werkzeug import wsgi
+
+import ereuse_devicehub.config
+from ereuse_devicehub.devicehub import Devicehub
+from ereuse_devicehub.resources.inventory import Inventory
+
+
+class PathDispatcher:
+    NOT_FOUND = werkzeug.exceptions.NotFound()
+    INV = Inventory
+
+    def __init__(self, config_cls=ereuse_devicehub.config.DevicehubConfig) -> None:
+        self.lock = Lock()
+        self.instances = {}
+        self.CONFIG = config_cls
+        self.engine = sa.create_engine(self.CONFIG.SQLALCHEMY_DATABASE_URI)
+        with self.lock:
+            self.instantiate()
+        if not self.instances:
+            raise ValueError('There are no Devicehub instances! Please, execute `dh init-db`.')
+        self.one_app = next(iter(self.instances.values()))
+
+    def __call__(self, environ, start_response):
+        if wsgi.get_path_info(environ).startswith('/users'):
+            # Not nice solution but it works well for now
+            # Return any app, as all apps can handle login
+            return self.call(self.one_app, environ, start_response)
+        inventory = wsgi.pop_path_info(environ)
+        with self.lock:
+            if inventory not in self.instances:
+                self.instantiate()
+        app = self.instances.get(inventory, self.NOT_FOUND)
+        return self.call(app, environ, start_response)
+
+    @staticmethod
+    def call(app, environ, start_response):
+        return app(environ, start_response)
+
+    def instantiate(self):
+        sel = sa.select([self.INV.id]).where(self.INV.id.notin_(self.instances.keys()))
+        for row in self.engine.execute(sel):
+            self.instances[row.id] = Devicehub(inventory=row.id)
diff --git a/ereuse_devicehub/dummy/dummy.py b/ereuse_devicehub/dummy/dummy.py
index c7b83345..7b24cd08 100644
--- a/ereuse_devicehub/dummy/dummy.py
+++ b/ereuse_devicehub/dummy/dummy.py
@@ -5,6 +5,7 @@ from typing import Set
 
 import click
 import click_spinner
+import ereuse_utils.cli
 import yaml
 from ereuse_utils.test import ANY
 
@@ -41,11 +42,25 @@ class Dummy:
         self.app = app
         self.app.cli.command('dummy', short_help='Creates dummy devices and users.')(self.run)
 
+    @click.option('--tag-url', '-tu',
+                  type=ereuse_utils.cli.URL(scheme=True, host=True, path=False),
+                  default='http://localhost:8081',
+                  help='The base url (scheme and host) of the tag provider.')
+    @click.option('--tag-token', '-tt',
+                  type=click.UUID,
+                  default='899c794e-1737-4cea-9232-fdc507ab7106',
+                  help='The token provided by the tag provider. It is an UUID.')
     @click.confirmation_option(prompt='This command (re)creates the DB from scratch.'
                                       'Do you want to continue?')
-    def run(self):
+    def run(self, tag_url, tag_token):
         runner = self.app.test_cli_runner()
-        self.app.init_db(erase=True)
+        self.app.init_db('Dummy',
+                         'ACME',
+                         'acme-id',
+                         tag_url,
+                         tag_token,
+                         erase=True,
+                         common=True)
         print('Creating stuff...'.ljust(30), end='')
         with click_spinner.spinner():
             out = runner.invoke(args=['create-org', *self.ORG], catch_exceptions=False).output
diff --git a/ereuse_devicehub/resources/agent/__init__.py b/ereuse_devicehub/resources/agent/__init__.py
index 0914bfb4..f0b48d24 100644
--- a/ereuse_devicehub/resources/agent/__init__.py
+++ b/ereuse_devicehub/resources/agent/__init__.py
@@ -1,8 +1,6 @@
 import json
 
 import click
-from flask import current_app as app
-from teal.db import SQLAlchemy
 from teal.resource import Converters, Resource
 
 from ereuse_devicehub.db import db
@@ -46,11 +44,6 @@ class OrganizationDef(AgentDef):
         print(json.dumps(o, indent=2))
         return o
 
-    def init_db(self, db: SQLAlchemy, exclude_schema=None):
-        """Creates the default organization."""
-        org = models.Organization(**app.config.get_namespace('ORGANIZATION_'))
-        db.session.add(org)
-
 
 class Membership(Resource):
     SCHEMA = schemas.Membership
diff --git a/ereuse_devicehub/resources/agent/models.py b/ereuse_devicehub/resources/agent/models.py
index 02082843..19a76ee6 100644
--- a/ereuse_devicehub/resources/agent/models.py
+++ b/ereuse_devicehub/resources/agent/models.py
@@ -3,17 +3,17 @@ from operator import attrgetter
 from uuid import uuid4
 
 from citext import CIText
-from flask import current_app as app, g
 from sqlalchemy import Column, Enum as DBEnum, ForeignKey, Unicode, UniqueConstraint
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.ext.declarative import declared_attr
 from sqlalchemy.orm import backref, relationship, validates
 from sqlalchemy_utils import EmailType, PhoneNumberType
 from teal import enums
-from teal.db import DBError, INHERIT_COND, POLYMORPHIC_ID, POLYMORPHIC_ON, check_lower
+from teal.db import INHERIT_COND, POLYMORPHIC_ID, POLYMORPHIC_ON, check_lower
 from teal.marshmallow import ValidationError
-from werkzeug.exceptions import NotImplemented, UnprocessableEntity
 
+from ereuse_devicehub.db import db
+from ereuse_devicehub.resources.inventory import Inventory
 from ereuse_devicehub.resources.models import STR_SM_SIZE, Thing
 from ereuse_devicehub.resources.user.models import User
 
@@ -46,6 +46,7 @@ class Agent(Thing):
 
     __table_args__ = (
         UniqueConstraint(tax_id, country, name='Registration Number per country.'),
+        UniqueConstraint(tax_id, name, name='One tax ID with one name.')
     )
 
     @declared_attr
@@ -80,21 +81,18 @@ class Agent(Thing):
 
 
 class Organization(JoinedTableMixin, Agent):
+    default_of = db.relationship(Inventory,
+                                 single_parent=True,
+                                 uselist=False,
+                                 primaryjoin=lambda: Organization.id == Inventory.org_id)
+
     def __init__(self, name: str, **kwargs) -> None:
         super().__init__(**kwargs, name=name)
 
     @classmethod
     def get_default_org_id(cls) -> UUID:
         """Retrieves the default organization."""
-        try:
-            return g.setdefault('org_id',
-                                Organization.query.filter_by(
-                                    **app.config.get_namespace('ORGANIZATION_')
-                                ).one().id)
-        except (DBError, UnprocessableEntity):
-            # todo test how well this works
-            raise NotImplemented('Error in getting the default organization. '
-                                 'Is the DB initialized?')
+        return cls.query.filter_by(default_of=Inventory.current).one().id
 
 
 class Individual(JoinedTableMixin, Agent):
diff --git a/ereuse_devicehub/resources/agent/schemas.py b/ereuse_devicehub/resources/agent/schemas.py
index 459319db..24109c18 100644
--- a/ereuse_devicehub/resources/agent/schemas.py
+++ b/ereuse_devicehub/resources/agent/schemas.py
@@ -21,6 +21,7 @@ class Agent(Thing):
 
 class Organization(Agent):
     members = NestedOn('Membership')
+    default_of = NestedOn('Inventory')
 
 
 class Membership(Thing):
diff --git a/ereuse_devicehub/resources/inventory/__init__.py b/ereuse_devicehub/resources/inventory/__init__.py
index e69de29b..28eed958 100644
--- a/ereuse_devicehub/resources/inventory/__init__.py
+++ b/ereuse_devicehub/resources/inventory/__init__.py
@@ -0,0 +1,79 @@
+import uuid
+
+import boltons.urlutils
+import click
+import ereuse_utils.cli
+from flask import current_app
+from teal.db import ResourceNotFound
+from teal.resource import Resource
+
+from ereuse_devicehub.db import db
+from ereuse_devicehub.resources.inventory import schema
+from ereuse_devicehub.resources.inventory.model import Inventory
+
+
+class InventoryDef(Resource):
+    SCHEMA = schema.Inventory
+    VIEW = None
+
+    def __init__(self, app, import_name=__name__.split('.')[0], static_folder=None,
+                 static_url_path=None,
+                 template_folder=None, url_prefix=None, subdomain=None, url_defaults=None,
+                 root_path=None):
+        cli_commands = (
+            (self.set_inventory_config_cli, 'set-inventory-config'),
+        )
+        super().__init__(app, import_name, static_folder, static_url_path, template_folder,
+                         url_prefix, subdomain, url_defaults, root_path, cli_commands)
+
+    @click.option('--name', '-n',
+                  default='Test 1',
+                  help='The human name of the inventory.')
+    @click.option('--org-name', '-on',
+                  default=None,
+                  help='The name of the default organization that owns this inventory.')
+    @click.option('--org-id', '-oi',
+                  default=None,
+                  help='The Tax ID of the organization.')
+    @click.option('--tag-url', '-tu',
+                  type=ereuse_utils.cli.URL(scheme=True, host=True, path=False),
+                  default=None,
+                  help='The base url (scheme and host) of the tag provider.')
+    @click.option('--tag-token', '-tt',
+                  type=click.UUID,
+                  default=None,
+                  help='The token provided by the tag provider. It is an UUID.')
+    def set_inventory_config_cli(self, **kwargs):
+        """Sets the inventory configuration. Only updates passed-in
+        values.
+        """
+        self.set_inventory_config(**kwargs)
+        db.session.commit()
+
+    @classmethod
+    def set_inventory_config(cls,
+                             name: str = None,
+                             org_name: str = None,
+                             org_id: str = None,
+                             tag_url: boltons.urlutils.URL = None,
+                             tag_token: uuid.UUID = None):
+        try:
+            inventory = Inventory.current
+        except ResourceNotFound:  # No inventory defined in db yet
+            inventory = Inventory(id=current_app.id,
+                                  name=name,
+                                  tag_provider=tag_url,
+                                  tag_token=tag_token)
+            db.session.add(inventory)
+        if org_name or org_id:
+            from ereuse_devicehub.resources.agent.models import Organization
+            try:
+                org = Organization.query.filter_by(tax_id=org_id, name=org_name).one()
+            except ResourceNotFound:
+                org = Organization(tax_id=org_id, name=org_name)
+            org.default_of = inventory
+            db.session.add(org)
+        if tag_url:
+            inventory.tag_provider = tag_url
+        if tag_token:
+            inventory.tag_token = tag_token
diff --git a/ereuse_devicehub/resources/inventory/model.py b/ereuse_devicehub/resources/inventory/model.py
index b1c583ed..70a75aae 100644
--- a/ereuse_devicehub/resources/inventory/model.py
+++ b/ereuse_devicehub/resources/inventory/model.py
@@ -1,3 +1,6 @@
+from boltons.typeutils import classproperty
+from flask import current_app
+
 from ereuse_devicehub.db import db
 from ereuse_devicehub.resources.models import Thing
 
@@ -8,5 +11,12 @@ class Inventory(Thing):
     id.comment = """The name of the inventory as in the URL and schema."""
     name = db.Column(db.CIText(), nullable=False, unique=True)
     name.comment = """The human name of the inventory."""
-    tag_token = db.Column(db.UUID(as_uuid=True), unique=True)
+    tag_provider = db.Column(db.URL(), nullable=False)
+    tag_token = db.Column(db.UUID(as_uuid=True), unique=True, nullable=False)
     tag_token.comment = """The token to access a Tag service."""
+    org_id = db.Column(db.UUID(as_uuid=True), db.ForeignKey('organization.id'), nullable=False)
+
+    @classproperty
+    def current(cls) -> 'Inventory':
+        """The inventory of the current_app."""
+        return Inventory.query.filter_by(id=current_app.id).one()
diff --git a/ereuse_devicehub/resources/inventory/schema.py b/ereuse_devicehub/resources/inventory/schema.py
new file mode 100644
index 00000000..7d7a7dea
--- /dev/null
+++ b/ereuse_devicehub/resources/inventory/schema.py
@@ -0,0 +1,11 @@
+import teal.marshmallow
+from marshmallow import fields as mf
+
+from ereuse_devicehub.resources.schemas import Thing
+
+
+class Inventory(Thing):
+    id = mf.String(dump_only=True)
+    name = mf.String(dump_only=True)
+    tag_provider = teal.marshmallow.URL(dump_only=True, data_key='tagProvider')
+    tag_token = mf.UUID(dump_only=True, data_key='tagToken')
diff --git a/ereuse_devicehub/resources/tag/view.py b/ereuse_devicehub/resources/tag/view.py
index 6fae8e88..7140573b 100644
--- a/ereuse_devicehub/resources/tag/view.py
+++ b/ereuse_devicehub/resources/tag/view.py
@@ -1,5 +1,4 @@
-from ereuse_utils.session import DevicehubClient
-from flask import Response, current_app, current_app as app, jsonify, redirect, request
+from flask import Response, current_app as app, g, jsonify, redirect, request
 from teal.marshmallow import ValidationError
 from teal.resource import View, url_for_resource
 
@@ -19,9 +18,8 @@ class TagView(View):
         return res
 
     def _create_many_regular_tags(self, num: int):
-        tag_provider = current_app.tag_provider  # type: DevicehubClient
-        tags_id, _ = tag_provider.post('/', {}, query=[('num', num)])
-        tags = [Tag(id=tag_id, provider=current_app.config['TAG_BASE_URL']) for tag_id in tags_id]
+        tags_id, _ = g.tag_provider.post('/', {}, query=[('num', num)])
+        tags = [Tag(id=tag_id, provider=g.inventory.tag_provider) for tag_id in tags_id]
         db.session.add_all(tags)
         db.session.commit()
         response = jsonify(items=self.schema.dump(tags, many=True, nested=1))  # type: Response
diff --git a/ereuse_devicehub/resources/user/__init__.py b/ereuse_devicehub/resources/user/__init__.py
index f3c4b61f..d749bb59 100644
--- a/ereuse_devicehub/resources/user/__init__.py
+++ b/ereuse_devicehub/resources/user/__init__.py
@@ -1,8 +1,11 @@
+from typing import Iterable
+
 from click import argument, option
 from flask import current_app
 from teal.resource import Converters, Resource
 
 from ereuse_devicehub.db import db
+from ereuse_devicehub.resources.inventory import Inventory
 from ereuse_devicehub.resources.user import schemas
 from ereuse_devicehub.resources.user.models import User
 from ereuse_devicehub.resources.user.views import UserView, login
@@ -23,13 +26,21 @@ class UserDef(Resource):
         self.add_url_rule('/login/', view_func=login, methods={'POST'})
 
     @argument('email')
+    @option('-i', '--inventory',
+            multiple=True,
+            help='Inventories user has access to. By default this one.')
     @option('-a', '--agent', help='The name of an agent to create with the user.')
     @option('-c', '--country', help='The country of the agent (if --agent is set).')
     @option('-t', '--telephone', help='The telephone of the agent (if --agent is set).')
     @option('-t', '--tax-id', help='The tax id of the agent (if --agent is set).')
     @option('-p', '--password', prompt=True, hide_input=True, confirmation_prompt=True)
-    def create_user(self, email: str, password: str, agent: str = None, country: str = None,
-                    telephone: str = None, tax_id: str = None) -> dict:
+    def create_user(self, email: str,
+                    password: str,
+                    inventory: Iterable[str] = tuple(),
+                    agent: str = None,
+                    country: str = None,
+                    telephone: str = None,
+                    tax_id: str = None) -> dict:
         """Creates an user.
 
         If ``--agent`` is passed, it creates an ``Individual`` agent
@@ -38,7 +49,9 @@ class UserDef(Resource):
         from ereuse_devicehub.resources.agent.models import Individual
         u = self.SCHEMA(only={'email', 'password'}, exclude=('token',)) \
             .load({'email': email, 'password': password})
-        user = User(**u)
+        if inventory:
+            inventory = Inventory.query.filter(Inventory.id.in_(inventory))
+        user = User(**u, inventories=inventory)
         agent = Individual(**current_app.resources[Individual.t].schema.load(
             dict(name=agent, email=email, country=country, telephone=telephone, taxId=tax_id)
         ))
diff --git a/ereuse_devicehub/resources/user/models.py b/ereuse_devicehub/resources/user/models.py
index 26e641b2..da5555dd 100644
--- a/ereuse_devicehub/resources/user/models.py
+++ b/ereuse_devicehub/resources/user/models.py
@@ -19,16 +19,24 @@ class User(Thing):
                                        schemes=app.config['PASSWORD_SCHEMES'],
                                        **kwargs
                                    )))
-    """
-    Password field.
-    From `here <https://sqlalchemy-utils.readthedocs.io/en/latest/
-    data_types.html#module-sqlalchemy_utils.types.password>`_
-    """
-    token = Column(UUID(as_uuid=True), default=uuid4, unique=True)
+    token = Column(UUID(as_uuid=True), default=uuid4, unique=True, nullable=False)
     inventories = db.relationship(Inventory,
                                   backref=db.backref('users', lazy=True, collection_class=set),
                                   secondary=lambda: UserInventory.__table__,
                                   collection_class=set)
+    # todo set restriction that user has, at least, one active db
+
+    def __init__(self, email, password=None, inventories=None) -> None:
+        """
+        Creates an user.
+        :param email:
+        :param password:
+        :param inventories: A set of Inventory where the user has
+        access to. If none, the user is granted access to the current
+        inventory.
+        """
+        inventories = inventories or {Inventory.current}
+        super().__init__(email=email, password=password, inventories=inventories)
 
     def __repr__(self) -> str:
         return '<User {0.email}>'.format(self)
diff --git a/ereuse_devicehub/resources/user/models.pyi b/ereuse_devicehub/resources/user/models.pyi
index f7057e2b..c6dd4754 100644
--- a/ereuse_devicehub/resources/user/models.pyi
+++ b/ereuse_devicehub/resources/user/models.pyi
@@ -2,9 +2,11 @@ from typing import Set, Union
 from uuid import UUID
 
 from sqlalchemy import Column
+from sqlalchemy.orm import relationship
 from sqlalchemy_utils import Password
 
 from ereuse_devicehub.resources.agent.models import Individual
+from ereuse_devicehub.resources.inventory import Inventory
 from ereuse_devicehub.resources.models import Thing
 
 
@@ -13,14 +15,17 @@ class User(Thing):
     email = ...  # type: Column
     password = ...  # type: Column
     token = ...  # type: Column
+    inventories = ...  # type: relationship
 
-    def __init__(self, **kwargs) -> None:
-        super().__init__(**kwargs)
+    def __init__(self, email: str, password: str = None,
+                 inventories: Set[Inventory] = None) -> None:
+        super().__init__()
         self.id = ...  # type: UUID
         self.email = ...  # type: str
         self.password = ...  # type: Password
         self.individuals = ...  # type: Set[Individual]
         self.token = ...  # type: UUID
+        self.inventories = ...  # type: Set[Inventory]
 
     @property
     def individual(self) -> Union[Individual, None]:
diff --git a/ereuse_devicehub/resources/user/schemas.py b/ereuse_devicehub/resources/user/schemas.py
index db6497af..91a7be92 100644
--- a/ereuse_devicehub/resources/user/schemas.py
+++ b/ereuse_devicehub/resources/user/schemas.py
@@ -5,6 +5,7 @@ from teal.marshmallow import SanitizedStr
 from ereuse_devicehub import auth
 from ereuse_devicehub.marshmallow import NestedOn
 from ereuse_devicehub.resources.agent.schemas import Individual
+from ereuse_devicehub.resources.inventory.schema import Inventory
 from ereuse_devicehub.resources.schemas import Thing
 
 
@@ -17,6 +18,7 @@ class User(Thing):
     token = String(dump_only=True,
                    description='Use this token in an Authorization header to access the app.'
                                'The token can change overtime.')
+    inventories = NestedOn(Inventory, many=True, dump_only=True)
 
     def __init__(self,
                  only=None,
diff --git a/examples/apache.conf b/examples/apache.conf
index cfda5300..01e2e403 100644
--- a/examples/apache.conf
+++ b/examples/apache.conf
@@ -8,7 +8,7 @@ Define appdir /home/devicetag/sites/${servername}/source/
 # The path where the app directory is. Apache must have access to this folder.
 Define wsgipath ${appdir}/wsgi.wsgi
 # The location of the .wsgi file
-Define pyvenv ${appdir}/venv/
+Define pyvenv ${appdir}../venv/
 # The path where the virtual environment is (the folder containing bin/activate)
 
 <VirtualHost *:80>
diff --git a/examples/app.py b/examples/app.py
index cc057684..31608a8b 100644
--- a/examples/app.py
+++ b/examples/app.py
@@ -1,4 +1,3 @@
-from ereuse_devicehub.config import DevicehubConfig
 from ereuse_devicehub.devicehub import Devicehub
 
 """
@@ -7,10 +6,4 @@ Example app with minimal configuration.
 Use this as a starting point.
 """
 
-
-class MyConfig(DevicehubConfig):
-    ORGANIZATION_NAME = 'My org'
-    ORGANIZATION_TAX_ID = 'foo-bar'
-
-
-app = Devicehub(MyConfig())
+app = Devicehub(inventory='db1')
diff --git a/requirements.txt b/requirements.txt
index baa432ca..631e7e39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ click==6.7
 click-spinner==0.1.8
 colorama==0.3.9
 colour==0.1.5
-ereuse-utils==0.4.0b14
+ereuse-utils[naming, test, session, cli]==0.4.0b14
 Flask==1.0.2
 Flask-Cors==3.0.6
 Flask-SQLAlchemy==2.3.2
@@ -15,7 +15,6 @@ marshmallow==3.0.0b11
 marshmallow-enum==1.4.1
 passlib==1.7.1
 phonenumbers==8.9.11
-pySMART.smartx==0.3.9
 pytest==3.7.2
 pytest-runner==4.2
 python-dateutil==2.7.3
@@ -25,9 +24,10 @@ requests==2.19.1
 requests-mock==1.5.2
 SQLAlchemy==1.2.14
 SQLAlchemy-Utils==0.33.6
-teal==0.2.0a34
+teal==0.2.0a35
 webargs==4.0.0
 Werkzeug==0.14.1
 sqlalchemy-citext==1.3.post0
 flask-weasyprint==0.5
 weasyprint==44
+psycopg2-binary==2.7.5
diff --git a/setup.py b/setup.py
index 54282ddc..1cce365e 100644
--- a/setup.py
+++ b/setup.py
@@ -29,10 +29,10 @@ setup(
     long_description=long_description,
     long_description_content_type='text/markdown',
     install_requires=[
-        'teal>=0.2.0a34',  # teal always first
+        'teal>=0.2.0a35',  # teal always first
         'click',
         'click-spinner',
-        'ereuse-utils[Naming]>=0.4b14',
+        'ereuse-utils[naming, test, session, cli]>=0.4b14',
         'hashids',
         'marshmallow_enum',
         'psycopg2-binary',
@@ -57,6 +57,11 @@ setup(
         'test': test_requires
     },
     tests_require=test_requires,
+    entry_points={
+        'console_scripts': [
+            'dh = ereuse_devicehub.cli:cli'
+        ]
+    },
     setup_requires=[
         'pytest-runner'
     ],
diff --git a/tests/conftest.py b/tests/conftest.py
index d4ec0e36..63005389 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,8 +1,10 @@
 import io
+import uuid
 from contextlib import redirect_stdout
 from datetime import datetime
 from pathlib import Path
 
+import boltons.urlutils
 import pytest
 import yaml
 from psycopg2 import IntegrityError
@@ -26,13 +28,8 @@ T = {'start_time': STARTT, 'end_time': ENDT}
 
 class TestConfig(DevicehubConfig):
     SQLALCHEMY_DATABASE_URI = 'postgresql://dhub:ereuse@localhost/dh_test'
-    SCHEMA = 'test'
     TESTING = True
-    ORGANIZATION_NAME = 'FooOrg'
-    ORGANIZATION_TAX_ID = 'foo-org-id'
     SERVER_NAME = 'localhost'
-    TAG_BASE_URL = 'https://example.com'
-    TAG_TOKEN = 'tagToken'
 
 
 @pytest.fixture(scope='session')
@@ -42,7 +39,7 @@ def config():
 
 @pytest.fixture(scope='session')
 def _app(config: TestConfig) -> Devicehub:
-    return Devicehub(config=config, db=db)
+    return Devicehub(inventory='test', config=config, db=db)
 
 
 @pytest.fixture()
@@ -52,14 +49,23 @@ def app(request, _app: Devicehub) -> Devicehub:
         with _app.app_context():
             db.drop_all()
 
+    def _init():
+        _app.init_db(name='Test Inventory',
+                     org_name='FooOrg',
+                     org_id='foo-org-id',
+                     tag_url=boltons.urlutils.URL('https://example.com'),
+                     tag_token=uuid.UUID('52dacef0-6bcb-4919-bfed-f10d2c96ecee'),
+                     erase=False,
+                     common=True)
+
     with _app.app_context():
         try:
             with redirect_stdout(io.StringIO()):
-                _app.init_db()
+                _init()
         except (ProgrammingError, IntegrityError):
             print('Database was not correctly emptied. Re-empty and re-installing...')
             _drop()
-            _app.init_db()
+            _init()
 
     request.addfinalizer(_drop)
     return _app
diff --git a/tests/test_agent.py b/tests/test_agent.py
index d379c7b5..bb6b7714 100644
--- a/tests/test_agent.py
+++ b/tests/test_agent.py
@@ -107,8 +107,7 @@ def test_default_org_exists(config: DevicehubConfig):
     initialization and that is accessible for the method
     :meth:`ereuse_devicehub.resources.user.Organization.get_default_org`.
     """
-    assert models.Organization.query.filter_by(name=config.ORGANIZATION_NAME,
-                                               tax_id=config.ORGANIZATION_TAX_ID).one()
+    assert models.Organization.query.filter_by(name='FooOrg', tax_id='foo-org-id').one()
     assert isinstance(models.Organization.get_default_org_id(), UUID)
 
 
diff --git a/tests/test_basic.py b/tests/test_basic.py
index 7fc1a29c..e1f3daab 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -42,4 +42,4 @@ def test_api_docs(client: Client):
         'scheme': 'basic',
         'name': 'Authorization'
     }
-    assert 95 == len(docs['definitions'])
+    assert len(docs['definitions']) == 96
diff --git a/tests/test_dispatcher.py b/tests/test_dispatcher.py
new file mode 100644
index 00000000..cf9a735e
--- /dev/null
+++ b/tests/test_dispatcher.py
@@ -0,0 +1,48 @@
+from unittest.mock import Mock
+
+import pytest
+
+from ereuse_devicehub.devicehub import Devicehub
+from ereuse_devicehub.dispatchers import PathDispatcher
+from tests.conftest import TestConfig
+
+
+def noop():
+    pass
+
+
+@pytest.fixture()
+def dispatcher(app: Devicehub, config: TestConfig) -> PathDispatcher:
+    print('whoho')
+    PathDispatcher.call = Mock(side_effect=lambda *args: args[0])
+    return PathDispatcher(config_cls=config)
+
+
+def test_dispatcher_default(dispatcher: PathDispatcher):
+    """The dispatcher returns not found for an URL that does not
+    route to an app.
+    """
+    app = dispatcher({'SCRIPT_NAME:': '/', 'PATH_INFO': '/'}, noop)
+    assert app == PathDispatcher.NOT_FOUND
+    app = dispatcher({'SCRIPT_NAME:': '/', 'PATH_INFO': '/foo/foo'}, noop)
+    assert app == PathDispatcher.NOT_FOUND
+
+
+def test_dispatcher_return_app(dispatcher: PathDispatcher):
+    """The dispatcher returns the correct app for the URL"""
+    # Note that the dispatcher does not check if the URL points
+    # to a well-known endpoint for the app.
+    # Only if can route it to an app. And then the app checks
+    # if the path exists
+    app = dispatcher({'SCRIPT_NAME:': '/', 'PATH_INFO': '/test/foo/'}, noop)
+    assert isinstance(app, Devicehub)
+    assert app.id == 'test'
+
+
+def test_dispatcher_users(dispatcher: PathDispatcher):
+    """Users special endpoint returns an app"""
+    # For now returns the first app, as all apps
+    # can answer {}/users/login
+    app = dispatcher({'SCRIPT_NAME:': '/', 'PATH_INFO': '/users/'}, noop)
+    assert isinstance(app, Devicehub)
+    assert app.id == 'test'
diff --git a/tests/test_inventory.py b/tests/test_inventory.py
new file mode 100644
index 00000000..28e6c6d8
--- /dev/null
+++ b/tests/test_inventory.py
@@ -0,0 +1,16 @@
+import pytest
+
+
+@pytest.mark.xfail(reason='Test not developed')
+def test_create_inventory():
+    """Tests creating an inventory with an user."""
+
+
+@pytest.mark.xfail(reason='Test not developed')
+def test_create_existing_inventory():
+    pass
+
+
+@pytest.mark.xfail(reason='Test not developed')
+def test_delete_inventory():
+    pass
diff --git a/tests/test_tag.py b/tests/test_tag.py
index faf525e4..5353db25 100644
--- a/tests/test_tag.py
+++ b/tests/test_tag.py
@@ -241,7 +241,9 @@ def test_crate_num_regular_tags(user: UserClient, requests_mock: requests_mock.m
     """
     requests_mock.post('https://example.com/',
                        # request
-                       request_headers={'Authorization': 'Basic tagToken'},
+                       request_headers={
+                           'Authorization': 'Basic 52dacef0-6bcb-4919-bfed-f10d2c96ecee'
+                       },
                        # response
                        json=['tag1id', 'tag2id'],
                        status_code=201)
diff --git a/tests/test_user.py b/tests/test_user.py
index a92ecd70..8f56e66f 100644
--- a/tests/test_user.py
+++ b/tests/test_user.py
@@ -82,6 +82,7 @@ def test_login_success(client: Client, app: Devicehub):
     assert user['individuals'][0]['name'] == 'Timmy'
     assert user['individuals'][0]['type'] == 'Person'
     assert len(user['individuals']) == 1
+    assert user['inventories'][0]['id'] == 'test'
 
 
 def test_login_failure(client: Client, app: Devicehub):
@@ -99,3 +100,8 @@ def test_login_failure(client: Client, app: Devicehub):
     client.post({'email': 'this is not an email', 'password': 'nope'},
                 uri='/users/login/',
                 status=ValidationError)
+
+
+@pytest.mark.xfail(reason='Test not developed')
+def test_user_at_least_one_inventory():
+    pass