diff --git a/conmorfeusz/conmorfeusz/cli/__init__.py b/conmorfeusz/conmorfeusz/cli/__init__.py
new file mode 100644
index 0000000..0620489
--- /dev/null
+++ b/conmorfeusz/conmorfeusz/cli/__init__.py
@@ -0,0 +1,30 @@
+import os
+import click
+import conmorfeusz.web as web
+import conmorfeusz.concraft as ccpl
+
+@click.command()
+@click.option('--port', default=5000, help='Port on which the application will be listening to.')
+@click.option('--ccpl-port', default=3000, help='Port on which internal concraft-pl server will be listening to.')
+@click.option('--ccpl-model', default=None, help='Model used by concraft-pl. It will fallback to CONCRAFT_PL_MODEL envvar if not specified.')
+@click.option('--ccpl-bin', default=None, help='Concraft-pl binary file. It will fallback to CONCRAFT_PL_BIN envvar if not specified.')
+@click.option('--ccpl-core-num', default=1, help='Number of cores used to run Concraft-pl logic.')
+@click.option('--ccpl-alloc-size', default=64, help='Allocation size for Concraft-pl.')
+def run(port, ccpl_port, ccpl_model, ccpl_bin, ccpl_core_num, ccpl_alloc_size):
+  """
+  Glues all services together and starts the holistic app.
+  """
+
+  ccpl_model = ccpl_model or os.environ.get('CONCRAFT_PL_MODEL')
+  ccpl_bin = ccpl_bin or os.environ.get('CONCRAFT_PL_BIN')
+
+  if ccpl_model is None:
+    raise Exception("Model must be specified either by --ccpl-model option or by CONCRAFT_PL_MODEL environment variable")
+
+  if ccpl_bin is None:
+    raise Exception("Concraft-pl binary file must be specified either by --ccpl-bin option or by CONCRAFT_PL_BIN environment variable")
+
+  concraft_cfg = (ccpl_model, ccpl_bin, ccpl_port, ccpl_core_num, ccpl_alloc_size)
+
+  with ccpl.start_server(*concraft_cfg):
+    web.start(port)
diff --git a/conmorfeusz/conmorfeusz/main.py b/conmorfeusz/conmorfeusz/main.py
index 6d325e7..39aac1c 100644
--- a/conmorfeusz/conmorfeusz/main.py
+++ b/conmorfeusz/conmorfeusz/main.py
@@ -1,14 +1,5 @@
-import os
-from . import runner
+from . import cli
 
 def main():
-  exe = os.environ.get('CONCRAFT_PL_BIN')
-  model = os.environ.get('CONCRAFT_PL_MODEL')
-  port=3000
-  core_num=1
-  allocation_size=64
-
-  concraft_cfg = (model, exe, port, core_num, allocation_size)
-  runner.run(concraft_cfg)
-
+  cli.run()
   
\ No newline at end of file
diff --git a/conmorfeusz/conmorfeusz/runner/__init__.py b/conmorfeusz/conmorfeusz/runner/__init__.py
deleted file mode 100644
index 32cb3cc..0000000
--- a/conmorfeusz/conmorfeusz/runner/__init__.py
+++ /dev/null
@@ -1,9 +0,0 @@
-import conmorfeusz.web as web
-import conmorfeusz.concraft as cc
-
-def run(concraft):
-  """
-  Glues all services together and starts the holistic app.
-  """
-  with cc.start_server(*concraft):
-    web.start()
\ No newline at end of file
diff --git a/conmorfeusz/conmorfeusz/web/__init__.py b/conmorfeusz/conmorfeusz/web/__init__.py
index fedbfa4..cf26804 100644
--- a/conmorfeusz/conmorfeusz/web/__init__.py
+++ b/conmorfeusz/conmorfeusz/web/__init__.py
@@ -11,6 +11,6 @@ def create_app():
 
   return app
 
-def start():
+def start(port):
   app = create_app()
-  app.run()
\ No newline at end of file
+  app.run(port=port)
\ No newline at end of file
diff --git a/conmorfeusz/default.nix b/conmorfeusz/default.nix
index 134cdcc..b8e2420 100644
--- a/conmorfeusz/default.nix
+++ b/conmorfeusz/default.nix
@@ -48,6 +48,7 @@ in
       morfeusz2
       flask
       requests
+      click
     ];
 
     nativeBuildInputs = with pythonPackages; [
diff --git a/conmorfeusz/pyproject.toml b/conmorfeusz/pyproject.toml
index 6790162..9642be3 100644
--- a/conmorfeusz/pyproject.toml
+++ b/conmorfeusz/pyproject.toml
@@ -11,7 +11,8 @@ requires-python = "==3.6"
 dependencies = [
   "morfeusz2==1.99.12",
   "flask",
-  "requests"
+  "requests",
+  "click"
 ]
 
 [tool.setuptools.packages.find]