diff --git a/Pipfile b/Pipfile
index b5e9c5e..17fe9ee 100644
--- a/Pipfile
+++ b/Pipfile
@@ -21,6 +21,8 @@ pyjwt = ">=2.3.0,<2.4.0"
 pyyaml = ">=5.3.1,<6"
 timing-asgi = ">=0.2.1,<1"
 schema = ">=0.7.4,<1"
+toml = "*"
+pip = "*"
 
 [scripts]
 halfapi = "python -m halfapi"
diff --git a/halfapi/cli/domain.py b/halfapi/cli/domain.py
index fb1835b..832d468 100644
--- a/halfapi/cli/domain.py
+++ b/halfapi/cli/domain.py
@@ -13,7 +13,7 @@ import orjson
 
 
 from .cli import cli
-from ..conf import config, write_config, DOMAINSDICT
+from ..conf import write_config
 
 from ..lib.domain import domain_schema
 from ..lib.schemas import schema_dict_dom
@@ -61,13 +61,7 @@ def create_domain(domain_name: str, module_path: str):
         os.mkdir(router_path)
         create_init(router_path)
 
-
-    if not config.has_section('domain'):
-        config.add_section('domain')
-
-    config.set('domain', 'name', domain_name)
-    config.set('domain', 'router', module_path)
-    write_config()
+    # TODO: Generate config file
 
     domain_tree_create()
     """
@@ -113,11 +107,13 @@ def list_routes(domain, m_dom):
 def list_api_routes():
     """
     Echoes the list of all active domains.
+
+    TODO: Rewrite function
     """
 
     click.echo('# API Routes')
-    for domain, m_dom in DOMAINSDICT().items():
-        list_routes(domain, m_dom)
+    # for domain, m_dom in DOMAINSDICT().items():
+    #     list_routes(domain, m_dom)
 
 
 @click.option('--read',default=True, is_flag=True)
diff --git a/halfapi/cli/run.py b/halfapi/cli/run.py
index c43cec7..5066806 100644
--- a/halfapi/cli/run.py
+++ b/halfapi/cli/run.py
@@ -10,9 +10,10 @@ import uvicorn
 from .cli import cli
 from .domain import list_api_routes
 from ..conf import (PROJECT_NAME, HOST, PORT, SCHEMA,
-    PRODUCTION, LOGLEVEL, DOMAINSDICT, CONFIG, DOMAIN, ROUTER)
+    PRODUCTION, LOGLEVEL, CONFIG)
 from ..logging import logger
 from ..lib.schemas import schema_csv_dict
+from ..half_domain import HalfDomain
 
 @click.option('--host', default=HOST)
 @click.option('--port', default=PORT)
@@ -26,7 +27,8 @@ from ..lib.schemas import schema_csv_dict
 @click.argument('schema', type=click.File('r'), required=False)
 @click.argument('domain', required=False)
 @cli.command()
-def run(host, port, reload, secret, production, loglevel, prefix, check, dryrun, schema, domain):
+def run(host, port, reload, secret, production, loglevel, prefix, check, dryrun,
+        schema, domain):
     """
     The "halfapi run" command
     """
@@ -58,6 +60,19 @@ def run(host, port, reload, secret, production, loglevel, prefix, check, dryrun,
         for key, val in schema_csv_dict(schema, prefix).items():
             SCHEMA[key] = val
 
+    if domain:
+        # If we specify a domain to run as argument
+
+        for key in CONFIG['domain']:
+            # Disable all domains
+            CONFIG['domain'].pop(key)
+
+        # And activate the desired one, mounted without prefix
+        CONFIG['domain'][domain] = {
+            'name': domain,
+            'prefix': False
+        }
+
     # list_api_routes()
 
     click.echo(f'uvicorn.run("halfapi.app:application"\n' \
diff --git a/halfapi/conf.py b/halfapi/conf.py
index 647f9c6..6379253 100644
--- a/halfapi/conf.py
+++ b/halfapi/conf.py
@@ -10,7 +10,6 @@ It uses the following environment variables :
 It defines the following globals :
 
     - PROJECT_NAME (str) - HALFAPI_PROJECT_NAME
-    - DOMAINSDICT ({domain_name: domain_module}) - HALFAPI_DOMAIN_NAME / HALFAPI_DOMAIN_MODULE
     - PRODUCTION (bool) - HALFAPI_PRODUCTION
     - LOGLEVEL (string) - HALFAPI_LOGLEVEL
     - BASE_DIR (str) - HALFAPI_BASE_DIR
@@ -18,7 +17,6 @@ It defines the following globals :
     - PORT (int) - HALFAPI_PORT
     - CONF_DIR (str) - HALFAPI_CONF_DIR
     - DRYRUN (bool) - HALFAPI_DRYRUN
-    - config (ConfigParser)
 
 It reads the following ressource :
 
@@ -30,43 +28,41 @@ It follows the following format :
     name = PROJECT_NAME
     halfapi_version = HALFAPI_VERSION
 
-    [domains]
-    domain_name = requirements-like-url
+    [domain.domain_name]
+    name = domain_name
+    routers = routers
+
+    [domain.domain_name.config]
+    option = Argh
+
 """
 
 import logging
 import os
 from os import environ
 import sys
-from configparser import ConfigParser
 import importlib
+import tempfile
+import uuid
+
+import toml
 
 from .lib.domain import d_domains
 from .logging import logger
 
+CONFIG = {}
 
-PROJECT_NAME = environ.get('HALFAPI_PROJECT_NAME') or os.path.basename(os.getcwd())
-DOMAINSDICT = lambda: {}
-DOMAINS = {}
 PRODUCTION = True
 LOGLEVEL = 'info'
-HOST = '127.0.0.1'
-PORT = '3000'
-SECRET = ''
 CONF_FILE = os.environ.get('HALFAPI_CONF_FILE', '.halfapi/config')
 DRYRUN = bool(os.environ.get('HALFAPI_DRYRUN', False))
 
-DOMAIN = None
-ROUTER = None
 SCHEMA = {}
 
-config = ConfigParser(allow_no_value=True)
-
 CONF_DIR = environ.get('HALFAPI_CONF_DIR', '/etc/half_api')
 HALFAPI_ETC_FILE=os.path.join(
-    CONF_DIR, 'default.ini'
+    CONF_DIR, 'config'
 )
-
 HALFAPI_DOT_FILE=os.path.join(
     os.getcwd(), '.halfapi', 'config')
 
@@ -85,59 +81,65 @@ def write_config():
     """
     Writes the current config to the highest priority config file
     """
-    with open(conf_files()[-1], 'w') as halfapi_config:
-        config.write(halfapi_config)
+    # with open(conf_files()[-1], 'w') as halfapi_config:
+    #     config.write(halfapi_config)
+    pass
 
-def config_dict():
-    """
-    The config object as a dict
-    """
-    return {
-            section: dict(config.items(section))
-            for section in config.sections()
-    }
 
 def read_config():
     """
     The highest index in "filenames" are the highest priorty
     """
-    config.read(HALFAPI_CONFIG_FILES)
-
-
+    return toml.load(HALFAPI_CONFIG_FILES)
 
 CONFIG = {}
-read_config()
 
-PROJECT_NAME = config.get('project', 'name', fallback=PROJECT_NAME)
+PROJECT_NAME = CONFIG.get('project', {}).get(
+    'name',
+    environ.get('HALFAPI_PROJECT_NAME', os.path.basename(os.getcwd())))
 
-if len(PROJECT_NAME) == 0:
-    raise Exception('Need a project name as argument')
+if len(CONFIG.get('domain', {}).keys()) == 0:
+    logger.info('No domains')
+    # logger.info('Running without domains: %s', d_domains(config) or 'empty domain dictionary')
 
-DOMAINSDICT = lambda: d_domains(config)
-DOMAINS = DOMAINSDICT()
-if len(DOMAINS) == 0:
-    logger.info('Running without domains: %s', d_domains(config) or 'empty domain dictionary')
 
-HOST = config.get('project', 'host', fallback=environ.get('HALFAPI_HOST', '127.0.0.1'))
-PORT = config.getint('project', 'port', fallback=environ.get('HALFAPI_PORT', '3000'))
+# Bind
+HOST = CONFIG.get('project', {}).get(
+    'host',
+    environ.get('HALFAPI_HOST', '127.0.0.1'))
+PORT = int(CONFIG.get('project', {}).get(
+    'port',
+    environ.get('HALFAPI_PORT', '3000')))
+
+
+# Secret
+SECRET = CONFIG.get('project', {}).get(
+    'secret',
+    environ.get('HALFAPI_SECRET'))
+
+if not SECRET:
+    # TODO: Create a temporary secret
+    _, SECRET = tempfile.mkstemp()
+    with open('SECRET', 'w') as secret_file:
+        secret_file.write(str(uuid.uuid4()))
 
-secret_path = config.get('project', 'secret', fallback=environ.get('HALFAPI_SECRET', ''))
 try:
-    with open(secret_path, 'r') as secret_file:
-
-        SECRET = secret_file.read().strip()
+    with open(SECRET, 'r') as secret_file:
         CONFIG['secret'] = SECRET.strip()
 except FileNotFoundError as exc:
-    logger.info('Running without secret file: %s', secret_path or 'no file specified')
+    logger.info('Running without secret file: %s', SECRET or 'no file specified')
 
-PRODUCTION = config.getboolean('project', 'production',
-    fallback=environ.get('HALFAPI_PROD', True))
+PRODUCTION = bool(CONFIG.get('project', {}).get(
+    'production',
+    environ.get('HALFAPI_PROD', True)))
 
-LOGLEVEL = config.get('project', 'loglevel',
-    fallback=environ.get('HALFAPI_LOGLEVEL', 'info')).lower()
+LOGLEVEL = CONFIG.get('project', {}).get(
+    'loglevel',
+    environ.get('HALFAPI_LOGLEVEL', 'info')).lower()
 
-BASE_DIR = config.get('project', 'base_dir',
-    fallback=environ.get('HALFAPI_BASE_DIR', '.'))
+BASE_DIR = CONFIG.get('project', {}).get(
+    'base_dir',
+    environ.get('HALFAPI_BASE_DIR', '.'))
 
 CONFIG = {
     'project_name': PROJECT_NAME,
@@ -146,4 +148,5 @@ CONFIG = {
     'host': HOST,
     'port': PORT,
     'dryrun': DRYRUN,
+    'domain': {}
 }
diff --git a/halfapi/half_domain.py b/halfapi/half_domain.py
new file mode 100644
index 0000000..16394d2
--- /dev/null
+++ b/halfapi/half_domain.py
@@ -0,0 +1,57 @@
+import importlib
+
+from starlette.applications import Starlette
+from starlette.routing import Router
+
+from .half_route import HalfRoute
+from .lib.routes import gen_domain_routes, gen_schema_routes
+from .lib.domain_middleware import DomainMiddleware
+from .logging import logger
+
+class HalfDomain(Starlette):
+    def __init__(self, app, domain, router=None, config={}):
+        self.app = app
+
+        self.m_domain = importlib.import_module(domain)
+        self.name = getattr('__name__', domain, domain)
+
+        if not router:
+            self.router = getattr('__router__', domain, '.routers')
+        else:
+            self.router = router
+
+        self.m_router = importlib.import_module(self.router, domain)
+
+        self.m_acl = importlib.import_module(f'{domain}.acl')
+
+        self.config = config
+
+        """
+        if domain:
+            m_domain = importlib.import_module(domain)
+            if not router:
+                router = getattr('__router__', domain, '.routers')
+            m_domain_router = importlib.import_module(router, domain)
+            m_domain_acl = importlib.import_module(f'{domain}.acl')
+
+        if not(m_domain and m_domain_router and m_domain_acl):
+            raise Exception('Cannot import domain')
+
+        self.schema = domain_schema(m_domain)
+
+        routes = [ Route('/', JSONRoute(self.schema)) ]
+        """
+
+        logger.info('HalfDomain creation %s %s', domain, config)
+        super().__init__(
+            routes=gen_domain_routes(self.m_router),
+            middleware=[
+                (DomainMiddleware,
+                    {
+                    'domain': self.name,
+                    'config': self.config
+                    }
+                )
+            ]
+        )
+
diff --git a/halfapi/halfapi.py b/halfapi/halfapi.py
index a588e6a..b16d2a0 100644
--- a/halfapi/halfapi.py
+++ b/halfapi/halfapi.py
@@ -40,13 +40,14 @@ from .lib.domain import domain_schema_dict, NoDomainsException, domain_schema
 from .lib.routes import gen_domain_routes, gen_schema_routes, JSONRoute
 from .lib.schemas import schema_json, get_acls
 from .logging import logger, config_logging
+from .half_domain import HalfDomain
 from halfapi import __version__
 
 
 
 class HalfAPI:
     def __init__(self, config,
-        routes_dict=None):
+        d_routes=None):
         config_logging(logging.DEBUG)
 
         SECRET = config.get('secret')
@@ -55,27 +56,28 @@ class HalfAPI:
         DRYRUN = config.get('dryrun', False)
 
         self.PRODUCTION = PRODUCTION
-        self.CONFIG = CONFIG
+        self.CONFIG = config
         self.SECRET = SECRET
 
         self.__application = None
 
 
+        # Domains
+
         """ HalfAPI routes (if not PRODUCTION, includes debug routes)
         """
         routes = []
         routes.append(
-            Route('/', JSONRoute({}))
+            Mount('/halfapi', routes=list(self.halfapi_routes()))
         )
 
-        routes.append(
-            Mount('/halfapi', routes=list(self.routes()))
-        )
+        logger.info('Config: %s', config)
+        logger.info('Active domains: %s', config.get('domain', {}))
 
-        if routes_dict:
-            # Mount the routes from the routes_dict argument - domain-less mode
+        if d_routes:
+            # Mount the routes from the d_routes argument - domain-less mode
             logger.info('Domain-less mode : the given schema defines the activated routes')
-            for route in gen_schema_routes(routes_dict):
+            for route in gen_schema_routes(d_routes):
                 routes.append(route)
         else:
             """
@@ -104,6 +106,24 @@ class HalfAPI:
             on_startup=startup_fcts
         )
 
+        for key, domain in config.get('domain', {}).items():
+            dom_name = domain.get('name', key)
+            if domain.get('prefix', False):
+                path = f'/{dom_name}'
+            else:
+                path = '/'
+
+            self.__application.mount(path,
+                Mount('/',
+                    HalfDomain(
+                        self.application,
+                        domain.get('name', key),
+                        domain.get('router'),
+                        config=domain.get('config', {})
+                    )
+                )
+            )
+
         """
         self.__application.add_middleware(
             DomainMiddleware,
@@ -139,7 +159,7 @@ class HalfAPI:
     def application(self):
         return self.__application
 
-    def routes(self):
+    def halfapi_routes(self):
         """ Halfapi default routes
         """
 
diff --git a/halfapi/lib/domain.py b/halfapi/lib/domain.py
index 2587ab6..01ab6d1 100644
--- a/halfapi/lib/domain.py
+++ b/halfapi/lib/domain.py
@@ -56,9 +56,8 @@ def route_decorator(fct: FunctionType, ret_type: str = 'json') -> Coroutine:
             fct_args['halfapi'] = {
                 'user': request.user if
                     'user' in request else None,
-                'config': request.scope['config'],
-                'domain': request.scope['domain'],
-
+                'config': request.scope.get('config', {}),
+                'domain': request.scope.get('domain', 'unknown'),
             }
 
 
diff --git a/halfapi/lib/domain_middleware.py b/halfapi/lib/domain_middleware.py
index 56be847..b1478bd 100644
--- a/halfapi/lib/domain_middleware.py
+++ b/halfapi/lib/domain_middleware.py
@@ -32,8 +32,7 @@ class DomainMiddleware(BaseHTTPMiddleware):
         """
 
         request.scope['domain'] = self.domain
-        request.scope['config'] = self.config['domain_config'][self.domain] \
-            if self.domain in self.config.get('domain_config', {}) else {}
+        request.scope['config'] = self.config.copy()
 
         response = await call_next(request)
 
diff --git a/halfapi/lib/routes.py b/halfapi/lib/routes.py
index 2fc8b16..58b89a9 100644
--- a/halfapi/lib/routes.py
+++ b/halfapi/lib/routes.py
@@ -19,11 +19,11 @@ from types import ModuleType, FunctionType
 
 import yaml
 
-from .domain import gen_router_routes, domain_acls, route_decorator
+from .domain import gen_router_routes, domain_acls, route_decorator, domain_schema_dict
 from .responses import ORJSONResponse
 from .acl import args_check
 from ..half_route import HalfRoute
-from ..conf import DOMAINSDICT
+from . import acl
 
 from ..logging import logger
 
@@ -58,6 +58,11 @@ def gen_domain_routes(m_domain: ModuleType):
     Returns:
         Generator(HalfRoute)
     """
+    yield HalfRoute(f'/',
+        JSONRoute(domain_schema_dict(m_domain)),
+        [{'acl': acl.public}],
+        'GET'
+    )
     for path, method, m_router, fct, params in gen_router_routes(m_domain, []):
         yield HalfRoute(f'/{path}', fct, params, method)
 
@@ -144,9 +149,11 @@ def api_routes(m_dom: ModuleType) -> Tuple[Dict, Dict]:
 
 def api_acls(request):
     """ Returns the list of possible ACLs
+
+    # TODO: Rewrite
     """
     res = {}
-    domains = DOMAINSDICT()
+    domains = {}
     doc = 'doc' in request.query_params
     for domain, m_domain in domains.items():
         res[domain] = {}
diff --git a/setup.py b/setup.py
index b71ea57..a3e4aff 100755
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,8 @@ setup(
         "orjson>=3.4.7,<4",
         "pyyaml>=5.3.1,<6",
         "timing-asgi>=0.2.1,<1",
-        "schema>=0.7.4,<1"
+        "schema>=0.7.4,<1",
+        "toml>=0.7.1,<0.8"
     ],
     classifiers=[
         "Development Status :: 3 - Alpha",
diff --git a/tests/cli/test_cli_run.py b/tests/cli/test_cli_run.py
index 6c7269f..378a728 100644
--- a/tests/cli/test_cli_run.py
+++ b/tests/cli/test_cli_run.py
@@ -12,7 +12,7 @@ def test_run_noproject(cli_runner):
 
         result = cli_runner.invoke(cli, ['run'])
         try:
-            assert result.exit_code == 1
+            assert result.exit_code == 0
         except AssertionError as exc:
             print(result.stdout)
             raise exc
diff --git a/tests/conftest.py b/tests/conftest.py
index 74098ad..0f89d1b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -39,7 +39,10 @@ from halfapi.lib.jwt_middleware import (
 def dummy_domain():
     yield {
         'name': 'dummy_domain',
-        'router': 'dummy_domain.routers'
+        'router': 'dummy_domain.routers',
+        'config': {
+            'test': True
+        }
     }
 
 @pytest.fixture
@@ -253,10 +256,10 @@ def dummy_project():
             f'secret = {halfapi_secret}\n',
             'port = 3050\n',
             'loglevel = debug\n',
-            '[domain]\n',
+            '[domain.dummy_domain]\n',
             f'name = {domain}\n',
             'router = dummy_domain.routers\n',
-            f'[{domain}]\n',
+            f'[domain.dummy_domain.config]\n',
             'test = True'
         ])
 
@@ -271,8 +274,10 @@ def application_debug(project_runner):
         'secret':'turlututu',
         'production':False,
         'domain': {
-            'name': 'test_domain',
-            'router': 'test_domain.routers'
+            'domain': {
+                'name': 'test_domain',
+                'router': 'test_domain.routers'
+            }
         },
         'config':{
             'domain_config': {'test_domain': {'test': True}}
@@ -288,9 +293,13 @@ def application_domain(dummy_domain):
     return HalfAPI({
         'secret':'turlututu',
         'production':True,
-        'domain': dummy_domain,
-        'config':{
-            'domain_config': {'dummy_domain': {'test': True}}
+        'domain': {
+            'domain': {
+                **dummy_domain,
+                'config': {
+                    'test': True
+                }
+            }
         }
     }).application
 
diff --git a/tests/test_app.py b/tests/test_app.py
index d2eabeb..5c3ed96 100644
--- a/tests/test_app.py
+++ b/tests/test_app.py
@@ -8,6 +8,7 @@ from halfapi.lib.domain import NoDomainsException
 def test_halfapi_dummy_domain(dummy_domain):
     with patch('starlette.applications.Starlette') as mock:
         mock.return_value = MagicMock()
-        halfapi = HalfAPI({
-            'domain': dummy_domain
-        })
+        config = {}
+        config['domain'] = {}
+        config['domain'][dummy_domain['name']] = dummy_domain
+        halfapi = HalfAPI(config)
diff --git a/tests/test_conf.py b/tests/test_conf.py
index f68087d..5984a2f 100644
--- a/tests/test_conf.py
+++ b/tests/test_conf.py
@@ -5,10 +5,12 @@ from halfapi.halfapi import HalfAPI
 
 class TestConf(TestCase):
     def setUp(self):
-        self.args = { 
+        self.args = {
             'domain': {
-                'name': 'dummy_domain',
-                'router': 'dummy_domain.routers'
+                'dummy_domain': {
+                    'name': 'dummy_domain',
+                    'router': '.routers'
+                }
             }
         }
     def tearDown(self):
@@ -39,7 +41,6 @@ class TestConf(TestCase):
             CONFIG,
             SCHEMA,
             SECRET,
-            DOMAINSDICT,
             PROJECT_NAME,
             HOST,
             PORT,
@@ -49,9 +50,8 @@ class TestConf(TestCase):
         assert isinstance(CONFIG, dict)
         assert isinstance(SCHEMA, dict)
         assert isinstance(SECRET, str)
-        assert isinstance(DOMAINSDICT(), dict)
         assert isinstance(PROJECT_NAME, str)
         assert isinstance(HOST, str)
-        assert isinstance(PORT, str)
-        assert str(int(PORT)) == PORT
+        assert isinstance(PORT, int)
+        assert int(str(int(PORT))) == PORT
         assert isinstance(CONF_DIR, str)
diff --git a/tests/test_halfapi.py b/tests/test_halfapi.py
index adea751..eb6ca97 100644
--- a/tests/test_halfapi.py
+++ b/tests/test_halfapi.py
@@ -2,6 +2,5 @@ from halfapi.halfapi import HalfAPI
 
 def test_methods():
     assert 'application' in dir(HalfAPI)
-    assert 'routes' in dir(HalfAPI)
     assert 'version' in dir(HalfAPI)
     assert 'version_async' in dir(HalfAPI)