diff --git a/bopytex/bopytex.py b/bopytex/bopytex.py
index 3776568..c7b5260 100644
--- a/bopytex/bopytex.py
+++ b/bopytex/bopytex.py
@@ -2,14 +2,3 @@ import bopytex.default_config as DEFAULT
 from bopytex.service import orcherstrator
 
 
-def bopytex(**options):
-
-    config = options.copy()
-    config["jinja2"] = {}
-    config["jinja2"]["environment"] = DEFAULT.jinja2_env
-
-    orcherstre = orcherstrator(
-        config, planner=DEFAULT.planner, dispatcher=DEFAULT.dispatcher
-    )
-    for message in orcherstre:
-        yield message
diff --git a/bopytex/default_config.py b/bopytex/default_config.py
index 864d804..2f8b19d 100644
--- a/bopytex/default_config.py
+++ b/bopytex/default_config.py
@@ -1,4 +1,4 @@
-import jinja2
+import jinja2 as j2
 from bopytex.planner.generate_compile_join_planner import planner
 from bopytex.worker import Dispatcher
 from bopytex.worker.clean import clean
@@ -6,7 +6,9 @@ from bopytex.worker.compile import latexmk
 from bopytex.worker.generate import generate
 from bopytex.worker.join_pdf import pdfjam
 
-jinja2_env = jinja2.Environment(loader=jinja2.FileSystemLoader("./"))
+jinja2 = {
+    "environment": j2.Environment(loader=j2.FileSystemLoader("./")),
+}
 
 dispatcher = Dispatcher(
     {"GENERATE": generate, "COMPILE": latexmk, "JOIN": pdfjam, "CLEAN": clean}
diff --git a/bopytex/script.py b/bopytex/script.py
index afad745..f3e3153 100644
--- a/bopytex/script.py
+++ b/bopytex/script.py
@@ -71,14 +71,21 @@ logger.addHandler(steam_handler)
     help="Activate correction and compile only from existing subjects",
 )
 @click.option(
-    "-c",
+    "-C",
     "--corr",
     is_flag=True,
     default=False,
     help="Create and compile correction while making subjects",
 )
+@click.option(
+    "-c",
+    "--configfile",
+    type=str,
+    default="bopyptex_config.py",
+    help="Config file path",
+)
 def new(**options):
-    for message in main(**options):
+    for message in main(options):
         try:
             assert message.status == 0
         except AssertionError:
diff --git a/bopytex/service.py b/bopytex/service.py
index 9446fd7..b7243ba 100755
--- a/bopytex/service.py
+++ b/bopytex/service.py
@@ -5,8 +5,10 @@
 Producing then compiling templates
 """
 
+import importlib.util
+from pathlib import Path
 from bopytex.scheduler import Scheduler
-import bopytex.default_config as DEFAULT
+from bopytex import default_config
 
 
 def orcherstrator(
@@ -22,18 +24,63 @@ def orcherstrator(
     for message in scheduler.backlog():
         yield message
 
+
+def load_module(modulefile: str):
+    spec = importlib.util.spec_from_file_location("module.name", modulefile)
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
+def clean_vars_keys(
+    vars: dict,
+    keys: list[str] = [
+        "__name__",
+        "__doc__",
+        "__package__",
+        "__loader__",
+        "__spec__",
+        "__file__",
+        "__cached__",
+        "__builtins__",
+    ],
+) -> dict:
+    new_dict = vars.copy()
+    for k in keys:
+        del new_dict[k]
+    return new_dict
+
+
+def get_config(options: dict) -> dict:
+    """ Look for options["configfile"] to load it with default_config and options """
+    try:
+        options["configfile"]
+    except KeyError:
+        local_config = {}
+    else:
+        if Path(options["configfile"]).exists():
+            local_config = vars(load_module(options["configfile"]))
+            local_config = clean_vars_keys(local_config)
+        else:
+            local_config = {}
+
+    config = clean_vars_keys(vars(default_config))
+    config.update(local_config)
+    config.update(options)
+    return config
+
+
 def main(**options):
 
-    config = options.copy()
-    config["jinja2"] = {}
-    config["jinja2"]["environment"] = DEFAULT.jinja2_env
+    config = get_config(options)
 
     orcherstre = orcherstrator(
-        config, planner=DEFAULT.planner, dispatcher=DEFAULT.dispatcher
+        config, planner=default_config.planner, dispatcher=default_config.dispatcher
     )
     for message in orcherstre:
         yield message
 
+
 # -----------------------------
 # Reglages pour 'vim'
 # vim:set autoindent expandtab tabstop=4 shiftwidth=4:
diff --git a/test/test_service.py b/test/test_service.py
index 80138f3..3828f18 100644
--- a/test/test_service.py
+++ b/test/test_service.py
@@ -1,5 +1,8 @@
+import os
+import pytest
+
 from bopytex.planner import fake_planner
-from bopytex.service import orcherstrator
+from bopytex.service import get_config, orcherstrator
 from bopytex.tasks import Task
 from bopytex.worker import Dispatcher
 from .fakes.workers import fake_worker
@@ -14,3 +17,43 @@ def test_service():
     for i, message in enumerate(service):
         assert message.status == 0
         assert message.out == [f"FAKE - {{'number': {i}}} - [] - {i}"]
+
+
+def test_get_config_no_configfile():
+    pass
+
+
+@pytest.fixture
+def config_file(tmp_path):
+    config_file = tmp_path / "bopytex_config.py"
+    with open(config_file, "w") as f:
+        f.write(
+            """
+from bopytex.jinja2_env.texenv import texenv
+jinja2 = {
+    "environment": texenv,
+}
+                """
+        )
+    return config_file
+
+
+def test_get_config_with_configfile(config_file, tmp_path):
+    os.chdir(tmp_path)
+    config = get_config({"from_option": "config", "configfile": str(config_file)})
+    assert type(config) == dict
+    assert set(config.keys()) == {
+        "generate",
+        "configfile",
+        "Dispatcher",
+        "planner",
+        "latexmk",
+        "clean",
+        "j2",
+        "dispatcher",
+        "pdfjam",
+        "jinja2",
+        "texenv",
+        "from_option",
+    }
+    assert list(config["jinja2"].keys()) == ["environment"]