diff --git a/partitioncloud/__init__.py b/partitioncloud/__init__.py
index 76369e6..7d77f2d 100644
--- a/partitioncloud/__init__.py
+++ b/partitioncloud/__init__.py
@@ -12,7 +12,7 @@ from flask import Flask, g, redirect, render_template, request, send_file, flash
 from werkzeug.security import generate_password_hash
 
 from .modules.utils import User, Album, get_all_albums
-from .modules import albums, auth, partition, admin, groupe, thumbnails
+from .modules import albums, auth, partition, admin, groupe, thumbnails, logging
 from .modules.auth import admin_required, login_required
 from .modules.db import get_db
 
@@ -33,6 +33,11 @@ def load_config():
             ".",
             os.path.join(app.instance_path, "config.py")
         )
+
+        if spec is None:
+            print("[ERROR] Failed to load $INSTANCE_PATH/config.py")
+            sys.exit(1)
+
         user_config = importlib.util.module_from_spec(spec)
         spec.loader.exec_module(user_config)
 
@@ -50,6 +55,8 @@ def load_config():
         DATABASE=os.path.join(app.instance_path, f"{__name__}.sqlite"),
     )
 
+    logging.log_file = os.path.join(app.instance_path, "logs.txt")
+
 
 def get_version():
     try:
@@ -71,6 +78,8 @@ app.register_blueprint(thumbnails.bp)
 
 __version__ = get_version()
 
+logging.log([], logging.LogEntry.SERVER_RESTART)
+
 
 @app.route("/")
 def home():
@@ -96,6 +105,12 @@ def add_user():
         if error is None:
             # Success, go to the login page.
             user = User(name=username)
+
+            logging.log(
+                [user.username, user.id, True, current_user.username],
+                logging.LogEntry.NEW_USER
+            )
+
             try:
                 if album_uuid != "":
                     user.join_album(album_uuid)
diff --git a/partitioncloud/modules/albums.py b/partitioncloud/modules/albums.py
index ddeaa5e..40ca12a 100644
--- a/partitioncloud/modules/albums.py
+++ b/partitioncloud/modules/albums.py
@@ -13,7 +13,7 @@ from flask import (Blueprint, abort, flash, redirect, render_template,
 from .auth import login_required
 from .db import get_db
 from .utils import User, Album
-from . import search, utils
+from . import search, utils, logging
 
 
 bp = Blueprint("albums", __name__, url_prefix="/albums")
@@ -116,6 +116,8 @@ def create_album_req():
     db = get_db()
     error = None
 
+    user = User(user_id=session["user_id"])
+
     if not name or name.strip() == "":
         error = "Un nom est requis. L'album n'a pas été créé"
 
@@ -131,6 +133,8 @@ def create_album_req():
         )
         db.commit()
 
+        logging.log([album.name, album.uuid, user.username], logging.LogEntry.NEW_ALBUM)
+
         if "response" in request.args and request.args["response"] == "json":
             return {
                 "status": "ok",
@@ -217,7 +221,7 @@ def delete_album(uuid):
 @login_required
 def add_partition(album_uuid):
     """
-    Ajouter une partition à un album (par upload)
+    Ajouter une partition à un album (nouveau fichier)
     """
     T = TypeVar("T")
     def get_opt_string(dictionary: dict[T, str], key: T):
@@ -265,6 +269,7 @@ def add_partition(album_uuid):
     author = get_opt_string(request.form, "author")
     body = get_opt_string(request.form, "body")
 
+    partition_uuid: str
     while True:
         try:
             partition_uuid = str(uuid4())
@@ -307,6 +312,11 @@ def add_partition(album_uuid):
         except db.IntegrityError:
             pass
 
+    logging.log(
+        [request.form["name"], partition_uuid, user.username],
+        logging.LogEntry.NEW_PARTITION
+    )
+
     if "response" in request.args and request.args["response"] == "json":
         return {
             "status": "ok",
@@ -320,7 +330,7 @@ def add_partition(album_uuid):
 @login_required
 def add_partition_from_search():
     """
-    Ajout d'une partition (depuis la recherche)
+    Ajout d'une partition (depuis la recherche locale)
     """
     user = User(user_id=session.get("user_id"))
     error = None
diff --git a/partitioncloud/modules/auth.py b/partitioncloud/modules/auth.py
index b53fe64..8d08c6e 100644
--- a/partitioncloud/modules/auth.py
+++ b/partitioncloud/modules/auth.py
@@ -12,6 +12,7 @@ from werkzeug.security import check_password_hash, generate_password_hash
 
 from .db import get_db
 from .utils import User
+from . import logging
 
 bp = Blueprint("auth", __name__, url_prefix="/auth")
 
@@ -120,8 +121,15 @@ def register():
         if error is not None:
             flash(error)
         else:
+            user = User(name=username)
+
             flash("Utilisateur créé avec succès. Vous pouvez vous connecter.")
 
+            logging.log(
+                [user.username, user.id, False],
+                logging.LogEntry.NEW_USER
+            )
+
     return render_template("auth/register.html")
 
 
@@ -139,12 +147,16 @@ def login():
         ).fetchone()
 
         if (user is None) or not check_password_hash(user["password"], password):
+            logging.log([username], logging.LogEntry.FAILED_LOGIN)
             error = "Nom d'utilisateur ou mot de passe incorrect."
 
         if error is None:
             # store the user id in a new session and return to the index
             session.clear()
             session["user_id"] = user["id"]
+
+            logging.log([username], logging.LogEntry.LOGIN)
+
             return redirect(url_for("albums.index"))
 
         flash(error)
diff --git a/partitioncloud/modules/groupe.py b/partitioncloud/modules/groupe.py
index fe03429..6991f3a 100644
--- a/partitioncloud/modules/groupe.py
+++ b/partitioncloud/modules/groupe.py
@@ -9,6 +9,7 @@ from .auth import login_required
 from .db import get_db
 from .utils import User, Album, Groupe
 from . import utils
+from . import logging
 
 bp = Blueprint("groupe", __name__, url_prefix="/groupe")
 
@@ -63,6 +64,8 @@ def create_groupe():
     db = get_db()
     error = None
 
+    user = User(user_id=session["user_id"])
+
     if not name or name.strip() == "":
         error = "Un nom est requis. Le groupe n'a pas été créé"
 
@@ -93,6 +96,8 @@ def create_groupe():
             except db.IntegrityError:
                 pass
 
+        logging.log([name, uuid, user.username], logging.LogEntry.NEW_GROUPE)
+
         if "response" in request.args and request.args["response"] == "json":
             return {
                 "status": "ok",
@@ -194,6 +199,8 @@ def create_album_req(groupe_uuid):
         )
         db.commit()
 
+        logging.log([album.name, album.uuid, user.username], logging.LogEntry.NEW_ALBUM)
+
         if "response" in request.args and request.args["response"] == "json":
             return {
                 "status": "ok",
diff --git a/partitioncloud/modules/logging.py b/partitioncloud/modules/logging.py
new file mode 100644
index 0000000..4cd0e0f
--- /dev/null
+++ b/partitioncloud/modules/logging.py
@@ -0,0 +1,61 @@
+from datetime import datetime
+from typing import Union
+from enum import Enum
+
+global log_file
+global enabled
+
+
+class LogEntry(Enum):
+    LOGIN = 1
+    NEW_GROUPE = 2
+    NEW_ALBUM = 3
+    NEW_PARTITION = 4
+    NEW_USER = 5
+    SERVER_RESTART = 6
+    FAILED_LOGIN = 7
+
+
+def add_entry(entry: str) -> None:
+    date = datetime.now().strftime("%y-%b-%Y %H:%M:%S")
+
+    with open(log_file, 'a', encoding="utf8") as f:
+        f.write(f"[{date}] {entry}\n")
+
+
+def log(content: list[Union[str, bool, int]], log_type: LogEntry) -> None:
+    description: str = ""
+
+    if log_type not in enabled:
+        return
+
+    match log_type:
+        case LogEntry.LOGIN: # content = (user.name)
+            description = f"Successful login for {content[0]}"
+
+        case LogEntry.NEW_GROUPE: # content = (groupe.name, groupe.id, user.name)
+            description = f"{content[2]} added groupe '{content[0]}' ({content[1]})"
+
+        case LogEntry.NEW_ALBUM: # content = (album.name, album.id, user.name)
+            description = f"{content[2]} added album '{content[0]}' ({content[1]})"
+
+        case LogEntry.NEW_PARTITION: # content = (partition.name, partition.uuid, user.name)
+            description = f"{content[2]} added partition '{content[0]}' ({content[1]})"
+
+        case LogEntry.NEW_USER: # content = (user.name, user.id, from_register_page, admin.name if relevant)
+            if not content[2]:
+                description = f"New user {content[0]}[{content[1]}]"
+            else:
+                description = f"New user {content[0]}[{content[1]}] added by {content[3]}"
+                
+        case LogEntry.SERVER_RESTART: # content = ()
+            description = "Server just restarted"
+
+        case LogEntry.FAILED_LOGIN: # content = (user.name)
+            description = f"Failed login for {content[0]}"
+
+    add_entry(description)
+
+
+log_file = "logs.txt"
+enabled = [i for i in LogEntry]
\ No newline at end of file