diff --git a/default_config.py b/default_config.py
index 881039f..5d4d125 100644
--- a/default_config.py
+++ b/default_config.py
@@ -19,3 +19,8 @@ BASE_URL="http://localhost:5000"
 
 # Session expiration, in days
 MAX_AGE=31
+
+# Instance path ie. where are all the files + the database stored
+# Keep in mind that this config option can only be loaded from default_config.py,
+# as the custom config is stored in $INSTANCE_PATH/
+INSTANCE_PATH="instance"
diff --git a/make.sh b/make.sh
index 967c26f..1da7302 100755
--- a/make.sh
+++ b/make.sh
@@ -1,25 +1,27 @@
 #!/bin/bash
 
+INSTANCE_PATH="instance"
+
 init () {
-    mkdir -p "instance"
-    mkdir -p "partitioncloud/partitions"
-    mkdir -p "partitioncloud/attachments"
-    mkdir -p "partitioncloud/search-partitions"
-    mkdir -p "partitioncloud/static/thumbnails"
-    mkdir -p "partitioncloud/static/search-thumbnails"
+    mkdir -p "$INSTANCE_PATH"
+    mkdir -p "$INSTANCE_PATH/partitions"
+    mkdir -p "$INSTANCE_PATH/attachments"
+    mkdir -p "$INSTANCE_PATH/search-partitions"
+    mkdir -p "$INSTANCE_PATH/static/thumbnails"
+    mkdir -p "$INSTANCE_PATH/static/search-thumbnails"
     
-    if ! test -f "instance/config.py"; then
-        echo "SECRET_KEY=$(python3 -c 'import secrets; print(secrets.token_hex())')" > instance/config.py
+    if ! test -f "$INSTANCE_PATH/config.py"; then
+        echo "SECRET_KEY=$(python3 -c 'import secrets; print(secrets.token_hex())')" > "$INSTANCE_PATH/config.py"
     fi
 
-    if test -f "instance/partitioncloud.sqlite"; then
+    if test -f "$INSTANCE_PATH/partitioncloud.sqlite"; then
         printf "Souhaitez vous supprimer la base de données existante ? [y/n] "
         read -r CONFIRMATION
         [[ $CONFIRMATION == y ]] || exit 1
     fi
-    sqlite3 "instance/partitioncloud.sqlite" '.read partitioncloud/schema.sql'
+    sqlite3 "$INSTANCE_PATH/partitioncloud.sqlite" '.read partitioncloud/schema.sql'
     echo "Base de données créé"
-    sqlite3 "instance/partitioncloud.sqlite" '.read partitioncloud/init.sql'
+    sqlite3 "$INSTANCE_PATH/partitioncloud.sqlite" '.read partitioncloud/init.sql'
     echo "Utilisateur root:root ajouté"
 }
 
@@ -43,7 +45,7 @@ usage () {
 if [[ $1 && $(type "$1") = *"is a"*"function"* || $(type "$1") == *"est une fonction"* ]]; then
 	# Import config
     source "default_config.py"
-    [[ ! -x instance/config.py ]] && source "instance/config.py"
+    [[ ! -x" $INSTANCE_PATH/config.py" ]] && source "$INSTANCE_PATH/config.py"
     $1 ${*:2} # Call the function
 else
 	usage
diff --git a/partitioncloud/__init__.py b/partitioncloud/__init__.py
index b7283c2..f61915d 100644
--- a/partitioncloud/__init__.py
+++ b/partitioncloud/__init__.py
@@ -3,8 +3,10 @@
 Main file
 """
 import os
+import sys
 import datetime
 import subprocess
+import importlib.util
 
 from flask import Flask, g, redirect, render_template, request, send_file, flash, session, abort
 from werkzeug.security import generate_password_hash
@@ -16,14 +18,48 @@ from .modules.db import get_db
 
 app = Flask(__name__)
 
-app.config.from_mapping(
-    DATABASE=os.path.join(app.instance_path, f"{__name__}.sqlite"),
-)
-app.config.from_object('default_config')
-if os.path.exists("instance/config.py"):
-    app.config.from_object('instance.config')
-else:
-    print("[WARNING] Using default config")
+
+def load_config():
+    app.config.from_object('default_config')
+    app.instance_path = os.path.abspath(app.config["INSTANCE_PATH"])
+
+    if not os.path.exists(app.instance_path):
+        print("[ERROR] Instance path does not exist. Make sure to use an existing directory.")
+        sys.exit(1)
+
+    if os.path.exists(f"{app.instance_path}/config.py"):
+        # Load module from instance_path/config.py in user_config object
+        spec = importlib.util.spec_from_file_location(
+            ".",
+            os.path.join(app.instance_path, "config.py")
+        )
+        user_config = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(user_config)
+
+        app.config.from_object(user_config)
+
+        if os.path.abspath(app.config["INSTANCE_PATH"]) != app.instance_path:
+            print("[ERROR] Using two different instance path. \
+            \nPlease modify INSTANCE_PATH only in default_config.py and remove it from $INSTANCE_PATH/config.py")
+            sys.exit(1)
+    else:
+        print("[WARNING] Using default config")
+
+    app.config.from_mapping(
+        DATABASE=os.path.join(app.instance_path, f"{__name__}.sqlite"),
+    )
+
+
+def get_version():
+    try:
+        result = subprocess.run(["git", "describe", "--tags"], stdout=subprocess.PIPE, check=True)
+        return result.stdout.decode('utf8')
+    except (FileNotFoundError, subprocess.CalledProcessError):
+        # In case git not found or any platform specific weird error
+        return "unknown"
+
+
+load_config()
 
 app.register_blueprint(auth.bp)
 app.register_blueprint(admin.bp)
@@ -31,13 +67,7 @@ app.register_blueprint(groupe.bp)
 app.register_blueprint(albums.bp)
 app.register_blueprint(partition.bp)
 
-
-try:
-    result = subprocess.run(["git", "describe", "--tags"], stdout=subprocess.PIPE, check=True)
-    __version__ = result.stdout.decode('utf8')
-except (FileNotFoundError, subprocess.CalledProcessError):
-    # In case git not found or any platform specific weird error
-    __version__ = "unknown"
+__version__ = get_version()
 
 
 @app.route("/")
@@ -99,7 +129,7 @@ def search_thumbnail(uuid):
             f'/usr/bin/convert -thumbnail\
             "178^>" -background white -alpha \
             remove -crop 178x178+0+0 \
-            partitioncloud/search-partitions/{uuid}.pdf[0] \
+            {app.instance_path}/search-partitions/{uuid}.pdf[0] \
             partitioncloud/static/search-thumbnails/{uuid}.jpg'
         )
 
diff --git a/partitioncloud/modules/albums.py b/partitioncloud/modules/albums.py
index 7561ec7..defa440 100644
--- a/partitioncloud/modules/albums.py
+++ b/partitioncloud/modules/albums.py
@@ -42,7 +42,7 @@ def search_page():
 
     query = request.form["query"]
     nb_queries = abs(int(request.form["nb-queries"]))
-    search.flush_cache()
+    search.flush_cache(current_app.instance_path)
     partitions_local = search.local_search(query, utils.get_all_partitions())
 
     user = User(user_id=session.get("user_id"))
@@ -52,7 +52,7 @@ def search_page():
             nb_queries = min(current_app.config["MAX_ONLINE_QUERIES"], nb_queries)
         else:
             nb_queries = min(10, nb_queries) # Query limit is 10 for an admin
-        google_results = search.online_search(query, nb_queries)
+        google_results = search.online_search(query, nb_queries, current_app.instance_path)
     else:
         google_results = []
 
@@ -207,7 +207,7 @@ def delete_album(uuid):
         flash(error)
         return redirect(request.referrer)
 
-    album.delete()
+    album.delete(current_app.instance_path)
 
     flash("Album supprimé.")
     return redirect("/albums")
@@ -278,20 +278,32 @@ def add_partition(album_uuid):
             )
             db.commit()
 
+            partition_path = os.path.join(
+                current_app.instance_path,
+                "partitions",
+                f"{partition_uuid}.pdf"
+            )
+
             if partition_type == "file":
                 file = request.files["file"]
-                file.save(f"partitioncloud/partitions/{partition_uuid}.pdf")
+                file.save(partition_path)
             else:
+                search_partition_path = os.path.join(
+                    current_app.instance_path,
+                    "search-partitions",
+                    f"{search_uuid}.pdf"
+                )
+
                 shutil.copyfile(
-                    f"partitioncloud/search-partitions/{search_uuid}.pdf",
-                    f"partitioncloud/partitions/{partition_uuid}.pdf"
+                    search_partition_path,
+                    partition_path
                 )
 
             os.system(
                 f'/usr/bin/convert -thumbnail\
                 "178^>" -background white -alpha \
                 remove -crop 178x178+0+0 \
-                partitioncloud/partitions/{partition_uuid}.pdf[0] \
+                {partition_path}[0] \
                 partitioncloud/static/thumbnails/{partition_uuid}.jpg'
             )
             db.commit()
diff --git a/partitioncloud/modules/classes/album.py b/partitioncloud/modules/classes/album.py
index cdb03f8..7e048fd 100644
--- a/partitioncloud/modules/classes/album.py
+++ b/partitioncloud/modules/classes/album.py
@@ -82,7 +82,7 @@ class Album():
         ).fetchall()
 
 
-    def delete(self):
+    def delete(self, instance_path):
         """
         Supprimer l'album
         """
@@ -130,9 +130,9 @@ class Album():
             attachments = [Attachment(data=i) for i in data]
 
             for attachment in attachments:
-                attachment.delete()
+                attachment.delete(instance_path)
 
-            os.remove(f"partitioncloud/partitions/{partition['uuid']}.pdf")
+            os.remove(f"{instance_path}/partitions/{partition['uuid']}.pdf")
             if os.path.exists(f"partitioncloud/static/thumbnails/{partition['uuid']}.jpg"):
                 os.remove(f"partitioncloud/static/thumbnails/{partition['uuid']}.jpg")
 
diff --git a/partitioncloud/modules/classes/attachment.py b/partitioncloud/modules/classes/attachment.py
index 902b264..44adf79 100644
--- a/partitioncloud/modules/classes/attachment.py
+++ b/partitioncloud/modules/classes/attachment.py
@@ -29,7 +29,7 @@ class Attachment():
         self.filetype = data["filetype"]
         self.partition_uuid = data["partition_uuid"]
 
-    def delete(self):
+    def delete(self, instance_path):
         db = get_db()
         db.execute(
             """
@@ -40,7 +40,7 @@ class Attachment():
         )
         db.commit()
 
-        os.remove(f"partitioncloud/attachments/{self.uuid}.{self.filetype}")
+        os.remove(f"{instance_path}/attachments/{self.uuid}.{self.filetype}")
 
     def __repr__(self):
         return f"{self.name}.{self.filetype}"
diff --git a/partitioncloud/modules/classes/groupe.py b/partitioncloud/modules/classes/groupe.py
index 19398a8..1ba9301 100644
--- a/partitioncloud/modules/classes/groupe.py
+++ b/partitioncloud/modules/classes/groupe.py
@@ -21,7 +21,7 @@ class Groupe():
         self.albums = None
         self.admins = None
 
-    def delete(self):
+    def delete(self, instance_path):
         """
         Supprime le groupe, et les albums laissés orphelins (sans utilisateur)
         """
@@ -63,7 +63,7 @@ class Groupe():
 
         for i in data:
             album = Album(id=i["id"])
-            album.delete()
+            album.delete(instance_path)
 
 
     def get_users(self):
diff --git a/partitioncloud/modules/classes/partition.py b/partitioncloud/modules/classes/partition.py
index 9815f91..b8465b2 100644
--- a/partitioncloud/modules/classes/partition.py
+++ b/partitioncloud/modules/classes/partition.py
@@ -29,7 +29,7 @@ class Partition():
         else:
             raise LookupError
 
-    def delete(self):
+    def delete(self, instance_path):
         self.load_attachments()
 
         db = get_db()
@@ -42,7 +42,7 @@ class Partition():
         )
         db.commit()
 
-        os.remove(f"partitioncloud/partitions/{self.uuid}.pdf")
+        os.remove(f"{instance_path}/partitions/{self.uuid}.pdf")
         if os.path.exists(f"partitioncloud/static/thumbnails/{self.uuid}.jpg"):
             os.remove(f"partitioncloud/static/thumbnails/{self.uuid}.jpg")
 
@@ -56,7 +56,7 @@ class Partition():
         db.commit()
 
         for attachment in self.attachments:
-            attachment.delete()
+            attachment.delete(instance_path)
 
     def update(self, name=None, author="", body=""):
         if name is None:
diff --git a/partitioncloud/modules/groupe.py b/partitioncloud/modules/groupe.py
index f30c19f..fe03429 100644
--- a/partitioncloud/modules/groupe.py
+++ b/partitioncloud/modules/groupe.py
@@ -3,7 +3,7 @@
 Groupe module
 """
 from flask import (Blueprint, abort, flash, redirect, render_template,
-                   request, session)
+                   request, session, current_app)
 
 from .auth import login_required
 from .db import get_db
@@ -155,7 +155,7 @@ def delete_groupe(uuid):
         flash(error)
         return redirect(request.referrer)
 
-    groupe.delete()
+    groupe.delete(current_app.instance_path)
 
     flash("Groupe supprimé.")
     return redirect("/albums")
diff --git a/partitioncloud/modules/partition.py b/partitioncloud/modules/partition.py
index f6076d9..700b221 100644
--- a/partitioncloud/modules/partition.py
+++ b/partitioncloud/modules/partition.py
@@ -4,7 +4,8 @@ Partition module
 """
 import os
 from uuid import uuid4
-from flask import Blueprint, abort, send_file, render_template, request, redirect, flash, session
+from flask import (Blueprint, abort, send_file, render_template,
+                    request, redirect, flash, session, current_app)
 
 from .db import get_db
 from .auth import login_required, admin_required
@@ -21,9 +22,11 @@ def get_partition(uuid):
         abort(404)
 
 
-    return send_file(
-        os.path.join("partitions", f"{uuid}.pdf"),
-        download_name = f"{partition.name}.pdf"
+    return send_file(os.path.join(
+            current_app.instance_path,
+            "partitions",
+            f"{uuid}.pdf"
+        ), download_name = f"{partition.name}.pdf"
     )
 
 @bp.route("/<uuid>/attachments")
@@ -51,7 +54,7 @@ def add_attachment(uuid):
     user = User(user_id=session.get("user_id"))
 
     if user.id != partition.user_id and user.access_level != 1:
-        flash("Cette partition ne vous appartient pas")
+        flash("Cette partition ne vous current_appartient pas")
         return redirect(request.referrer)
 
     error = None # À mettre au propre
@@ -90,7 +93,11 @@ def add_attachment(uuid):
             db.commit()
 
             file = request.files["file"]
-            file.save(f"partitioncloud/attachments/{attachment_uuid}.{ext}")
+            file.save(os.path.join(
+                current_app.instance_path,
+                "attachments",
+                f"{attachment_uuid}.{ext}"
+            ))
             break
 
         except db.IntegrityError:
@@ -114,9 +121,11 @@ def get_attachment(uuid, filetype):
 
     assert filetype == attachment.filetype
 
-    return send_file(
-        os.path.join("attachments", f"{uuid}.{attachment.filetype}"),
-        download_name = f"{attachment.name}.{attachment.filetype}"
+    return send_file(os.path.join(
+            current_app.instance_path,
+            "attachments",
+            f"{uuid}.{attachment.filetype}"
+        ), download_name = f"{attachment.name}.{attachment.filetype}"
     )
 
 
@@ -223,7 +232,7 @@ def delete(uuid):
     if request.method == "GET":
         return render_template("partition/delete.html", partition=partition, user=user)
 
-    partition.delete()
+    partition.delete(current_app.instance_path)
 
     flash("Partition supprimée.")
     return redirect("/albums")
@@ -245,7 +254,13 @@ def partition_search(uuid):
         abort(404)
     if request.args.get("redirect") == "true" and partition["url"] is not None:
         return redirect(partition["url"])
-    return send_file(os.path.join("search-partitions", f"{uuid}.pdf"))
+
+    return send_file(os.path.join(
+            current_app.instance_path,
+            "search-partitions",
+            f"{uuid}.pdf"
+        )
+    )
 
 
 @bp.route("/")
diff --git a/partitioncloud/modules/search.py b/partitioncloud/modules/search.py
index 2b24b90..27c8b22 100644
--- a/partitioncloud/modules/search.py
+++ b/partitioncloud/modules/search.py
@@ -49,19 +49,19 @@ def local_search(query, partitions):
     return selection
 
 
-def download_search_result(element):
+def download_search_result(element, instance_path):
     uuid = element["uuid"]
     url = element["url"]
 
     try:
-        urllib.request.urlretrieve(url, f"partitioncloud/search-partitions/{uuid}.pdf")
+        urllib.request.urlretrieve(url, f"{instance_path}/search-partitions/{uuid}.pdf")
 
     except (urllib.error.HTTPError, urllib.error.URLError):
-        with open(f"partitioncloud/search-partitions/{uuid}.pdf", 'a', encoding="utf8") as _:
+        with open(f"{instance_path}/search-partitions/{uuid}.pdf", 'a', encoding="utf8") as _:
             pass # Create empty file
 
 
-def online_search(query, num_queries):
+def online_search(query, num_queries, instance_path):
     """
     Renvoie les 3 résultats les plus pertinents depuis google
     """
@@ -103,7 +103,12 @@ def online_search(query, num_queries):
     except urllib.error.URLError: # Unable to access network
         return []
 
-    threads = [threading.Thread(target=download_search_result, args=(elem,)) for elem in partitions]
+    threads = [
+        threading.Thread(
+            target=download_search_result,
+            args=(elem, instance_path)
+        ) for elem in partitions
+    ]
 
     for thread in threads:
         thread.start()
@@ -114,7 +119,7 @@ def online_search(query, num_queries):
     for element in partitions.copy():
         uuid = element["uuid"]
         url = element["url"]
-        if os.stat(f"partitioncloud/search-partitions/{uuid}.pdf").st_size == 0:
+        if os.stat(f"{instance_path}/search-partitions/{uuid}.pdf").st_size == 0:
             print("An error occured", url)
             db.execute(
                 """
@@ -125,14 +130,14 @@ def online_search(query, num_queries):
             )
             db.commit()
 
-            os.remove(f"partitioncloud/search-partitions/{uuid}.pdf")
+            os.remove(f"{instance_path}/search-partitions/{uuid}.pdf")
 
             partitions.remove(element)
 
     return partitions
 
 
-def flush_cache():
+def flush_cache(instance_path):
     """
     Supprimer les résultats de recherche datant de plus de 15 minutes
     """
@@ -146,7 +151,7 @@ def flush_cache():
     for element in expired_cache:
         uuid = element["uuid"]
         try:
-            os.remove(f"partitioncloud/search-partitions/{uuid}.pdf")
+            os.remove(f"{instance_path}/search-partitions/{uuid}.pdf")
         except FileNotFoundError:
             pass
         try:
diff --git a/scripts/hooks/v1.py b/scripts/hooks/v1.py
index 1a5613b..b9050f7 100644
--- a/scripts/hooks/v1.py
+++ b/scripts/hooks/v1.py
@@ -1,4 +1,5 @@
 import os
+import shutil
 import sqlite3
 from hooks import utils
 from colorama import Fore, Style
@@ -142,3 +143,21 @@ def base_url_parameter_added():
 
 def install_qrcode():
     os.system("pip install qrcode -qq")
+
+
+"""
+ v1.5.*
+"""
+
+
+def move_instance():
+    paths = [
+        "attachments",
+        "partitions",
+        "search-partitions"
+    ]
+    for path in paths:
+        shutil.move(
+            os.path.join("partitioncloud", path),
+            os.path.join("instance", path)
+        )
\ No newline at end of file
diff --git a/scripts/migration.py b/scripts/migration.py
index 096aa73..0ac6a94 100644
--- a/scripts/migration.py
+++ b/scripts/migration.py
@@ -33,6 +33,7 @@ hooks = [
         ],
     ),
     ("v1.4.1", [("Install qrcode", v1_hooks.install_qrcode)]),
+    ("v1.5.0", [("Move to instance directory", v1_hooks.move_instance)])
 ]
 
 
@@ -86,10 +87,10 @@ def backup_instance(version, verbose=True):
             os.path.join(dest, "search-partitions"),
         ),
     ]
-    for src, dst in paths:
+    for src, dst in paths: # Only the first one exists after v1.5.0
         if os.path.exists(src):
             print_verbose(f"\tBacking up {src}")
-            shutil.copy_tree(src, dst)
+            shutil.copytree(src, dst)
 
 
 def print_hooks(hooks_list):
@@ -108,7 +109,7 @@ def apply_hooks(hooks_list):
 
 
 def migrate(current, target, skip_backup=False, prog_name="scripts/migration.py"):
-    """"""
+    """Migrate from one version to another"""
     print(f"Trying to migrate from {current} to {target}")
 
     assert is_newer(target, current)
@@ -132,7 +133,7 @@ def migrate(current, target, skip_backup=False, prog_name="scripts/migration.py"
         )
         print(
             f"If something goes wrong, recover with {Style.BRIGHT}{Fore.BLUE}{prog_name}\
-                 --restore {current}{Style.RESET_ALL}"
+ --restore {current}{Style.RESET_ALL}"
         )
     else:
         print("Skipping automatic backup")
@@ -168,13 +169,13 @@ def restore(version):
             os.path.join(dest, "search-partitions"),
         ),
     ]
-    for src, dst in paths:
+    for src, dst in paths: # Only the first one exists after v1.5.0
         if os.path.exists(src):
             shutil.rmtree(src)
 
         if os.path.exists(dst):
             print(f"\tRestoring {src}")
-            shutil.copy_tree(dst, src)
+            shutil.copytree(dst, src)
         else:
             print(
                 f"\t{Fore.RED}No available backup for {src}, \