diff --git a/multi_user/bl_types/dump_anything.py b/multi_user/bl_types/dump_anything.py
index 3da447c..0c29e84 100644
--- a/multi_user/bl_types/dump_anything.py
+++ b/multi_user/bl_types/dump_anything.py
@@ -26,8 +26,8 @@ import numpy as np
 BPY_TO_NUMPY_TYPES = {
     'FLOAT': np.float32,
     'INT': np.int32,
-    'BOOL': np.bool,
-    'BOOLEAN': np.bool}
+    'BOOL': bool,
+    'BOOLEAN': bool}
 
 PRIMITIVE_TYPES = ['FLOAT', 'INT', 'BOOLEAN']
 
diff --git a/multi_user/environment.py b/multi_user/environment.py
index 79e57cc..34eb71d 100644
--- a/multi_user/environment.py
+++ b/multi_user/environment.py
@@ -31,13 +31,11 @@ DEFAULT_CACHE_DIR = os.path.join(
     os.path.dirname(os.path.abspath(__file__)), "cache")
 REPLICATION_DEPENDENCIES = {
     "zmq",
-    "deepdiff==5.7.0"
+    "deepdiff"
 }
 LIBS = os.path.join(os.path.dirname(os.path.abspath(__file__)), "libs")
 REPLICATION = os.path.join(LIBS,"replication")
 
-PYTHON_PATH = None
-SUBPROCESS_DIR = None
 
 rtypes = []
 
@@ -50,13 +48,13 @@ def module_can_be_imported(name: str) -> bool:
         return False
 
 
-def install_pip():
+def install_pip(python_path):
     # pip can not necessarily be imported into Blender after this
-    subprocess.run([str(PYTHON_PATH), "-m", "ensurepip"])
+    subprocess.run([str(python_path), "-m", "ensurepip"])
 
 
-def install_package(name: str, install_dir: str):
-    logging.info(f"installing {name} version...")
+def install_requirements(python_path:str, module_requirement: str, install_dir: str):
+    logging.info(f"Installing {module_requirement} dependencies in {install_dir}")
     env = os.environ
     if "PIP_REQUIRE_VIRTUALENV" in env:
         # PIP_REQUIRE_VIRTUALENV is an env var to ensure pip cannot install packages outside a virtual env
@@ -65,23 +63,7 @@ def install_package(name: str, install_dir: str):
         # env var for the subprocess.
         env = os.environ.copy()
         del env["PIP_REQUIRE_VIRTUALENV"]
-    subprocess.run([str(PYTHON_PATH), "-m", "pip", "install", f"{name}", "-t", install_dir], env=env)
-
-    if name in sys.modules:
-        del sys.modules[name]
-
-
-def check_package_version(name: str, required_version: str):
-    logging.info(f"Checking {name} version...")
-    out = subprocess.run([str(PYTHON_PATH), "-m", "pip", "show", name], capture_output=True)
-
-    version = VERSION_EXPR.search(out.stdout.decode())
-    if version and version.group() == required_version:
-        logging.info(f"{name} is up to date")
-        return True
-    else:
-        logging.info(f"{name} need an update")
-        return False
+    subprocess.run([str(python_path), "-m", "pip", "install", "-r", f"{install_dir}/{module_requirement}/requirements.txt", "-t", install_dir], env=env)
 
 
 def get_ip():
@@ -117,21 +99,7 @@ def remove_paths(paths: list):
         if path in sys.path:
             logging.debug(f"Removing {path} dir from the path.")
             sys.path.remove(path)
-
-
-def install_modules(dependencies: list, python_path: str, install_dir: str):
-    global PYTHON_PATH, SUBPROCESS_DIR
-
-    PYTHON_PATH = Path(python_path)
-    SUBPROCESS_DIR = PYTHON_PATH.parent
-
-    if not module_can_be_imported("pip"):
-        install_pip()
-
-    for package_name in dependencies:
-        if not module_can_be_imported(package_name):
-            install_package(package_name, install_dir=install_dir)
-            module_can_be_imported(package_name)
+      
 
 def register():
     if bpy.app.version >= (2,91,0):
@@ -139,12 +107,21 @@ def register():
     else:
         python_binary_path = bpy.app.binary_path_python
 
+    python_path = Path(python_binary_path)
+
     for module_name in list(sys.modules.keys()):
         if 'replication' in module_name:
             del sys.modules[module_name]
 
     setup_paths([LIBS, REPLICATION])
-    install_modules(REPLICATION_DEPENDENCIES, python_binary_path, install_dir=LIBS)
+
+    if not module_can_be_imported("pip"):
+        install_pip(python_path)
+
+    deps_not_installed = [package_name for package_name in REPLICATION_DEPENDENCIES if not module_can_be_imported(package_name)]
+    if any(deps_not_installed):
+        install_requirements(python_path, module_requirement='replication', install_dir=LIBS)
+    
 
 def unregister():
     remove_paths([REPLICATION, LIBS])
\ No newline at end of file
diff --git a/multi_user/libs/replication b/multi_user/libs/replication
index b60feea..3e9eb4f 160000
--- a/multi_user/libs/replication
+++ b/multi_user/libs/replication
@@ -1 +1 @@
-Subproject commit b60feead9d30c0888767fa9ad1df21a40b89c05f
+Subproject commit 3e9eb4f5c052177c2fe1e16ff5d1f042456c30d0
diff --git a/multi_user/preferences.py b/multi_user/preferences.py
index b41b0c8..3e5f80c 100644
--- a/multi_user/preferences.py
+++ b/multi_user/preferences.py
@@ -44,13 +44,6 @@ DEFAULT_PRESETS = {
         "admin_password": "admin",
         "server_password": ""
     },
-    "public session" : {
-        "server_name": "public session",
-        "ip": "51.75.71.183",
-        "port": 5555,
-        "admin_password": "",
-        "server_password": ""
-    },
 }
 
 def randomColor():