diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1d48ab6f..6af04403 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -7,7 +7,6 @@ exclude: |
   ^monitoring_prometheus/|
   ^monitoring_statsd/|
   ^monitoring_status/|
-  ^session_redis/|
   ^test_base_fileurl_field/|
   # END NOT INSTALLABLE ADDONS
   # Files and folders generated by bots, to avoid loops
diff --git a/requirements.txt b/requirements.txt
index e4686695..1997842f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 # generated from manifests external_dependencies
 python-json-logger
+redis
diff --git a/session_redis/__manifest__.py b/session_redis/__manifest__.py
index de134274..d7207578 100644
--- a/session_redis/__manifest__.py
+++ b/session_redis/__manifest__.py
@@ -18,5 +18,5 @@
         "python": ["redis"],
     },
     "website": "https://github.com/camptocamp/odoo-cloud-platform",
-    "installable": False,
+    "installable": True,
 }
diff --git a/session_redis/http.py b/session_redis/http.py
index efd6c827..becfbd58 100644
--- a/session_redis/http.py
+++ b/session_redis/http.py
@@ -93,15 +93,14 @@ def purge_fs_sessions(path):
 if is_true(os.getenv("ODOO_SESSION_REDIS")):
     if sentinel_host:
         _logger.debug(
-            "HTTP sessions stored in Redis with prefix '%s'. "
-            "Using Sentinel on %s:%s",
+            "HTTP sessions stored in Redis with prefix '%s'. Using Sentinel on %s:%s",
             prefix or "",
             sentinel_host,
             sentinel_port,
         )
     else:
         _logger.debug(
-            "HTTP sessions stored in Redis with prefix '%s' on " "%s:%s",
+            "HTTP sessions stored in Redis with prefix '%s' on %s:%s",
             prefix or "",
             host,
             port,
diff --git a/session_redis/session.py b/session_redis/session.py
index e995ce69..da356479 100644
--- a/session_redis/session.py
+++ b/session_redis/session.py
@@ -1,9 +1,10 @@
 # Copyright 2016-2024 Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
+import builtins
 import json
 import logging
-from typing import TypeAlias, List
+from typing import TypeAlias
 
 import odoo.http
 from odoo.http import SESSION_LIFETIME
@@ -96,9 +97,8 @@ def save(self, session):
             "utf-8"
         )
         if self.redis.set(key, data):
-            if type(expiration) != int:
+            if not (expiration and isinstance(expiration, int)):
                 expiration = DEFAULT_SESSION_TIMEOUT_ANONYMOUS
-            if expiration == 0:
                 expiration = DEFAULT_SESSION_TIMEOUT_ANONYMOUS
             return self.redis.expire(key, expiration)
 
@@ -110,8 +110,7 @@ def delete(self, session):
     def get(self, sid):
         if not self.is_valid_key(sid):
             _logger.debug(
-                f"session with invalid sid '{sid}' has been asked, "
-                "returning a new one"
+                f"session with invalid sid '{sid}' has been asked, returning a new one"
             )
             return self.new()
 
@@ -134,7 +133,7 @@ def get(self, sid):
         return self.session_class(data, sid, False)
 
     def list(self):
-        keys = self.redis.keys("%s*" % self.prefix)
+        keys = self.redis.keys(f"{self.prefix}*")
         _logger.debug("a listing redis keys has been called")
         return [key[len(self.prefix) :] for key in keys]
 
@@ -162,7 +161,9 @@ def delete_old_sessions(self, session):
         """
         return
 
-    def get_missing_session_identifiers(self, identifiers: List[PartialSid]) -> set[PartialSid]:
+    def get_missing_session_identifiers(
+        self, identifiers: builtins.list[PartialSid]
+    ) -> set[PartialSid]:
         """
         Given a list of partial session ids, return a set of those session ids
         which no longer exist in the keystore.
@@ -188,7 +189,7 @@ def get_missing_session_identifiers(self, identifiers: List[PartialSid]) -> set[
 
         return not_found
 
-    def delete_from_identifiers(self, identifiers: List[PartialSid]):
+    def delete_from_identifiers(self, identifiers: builtins.list[PartialSid]):
         """
         Given a list of partial session ids, remove any that are in the session store.
 
@@ -198,10 +199,13 @@ def delete_from_identifiers(self, identifiers: List[PartialSid]):
         """
         patterns_to_unlink = []
         for identifier in identifiers:
-            # Avoid removing a session if it does not match an identifier.
-            # See this same comment in odoo.http.FileSessionStore.delete_from_identifiers.
+            # Avoid removing a session if it does not match an identifier. See this same
+            # comment in odoo.http.FileSessionStore.delete_from_identifiers.
             if not odoo.http._session_identifier_re.match(identifier):
-                raise ValueError("Identifier format incorrect, did you pass in a string instead of a list?")
+                raise ValueError(
+                    "Identifier format incorrect, did you pass in a string instead ",
+                    "of a list?",
+                )
             patterns_to_unlink.append(f"{self.prefix}{identifier}*")
         keys_to_unlink = []
         for pattern in patterns_to_unlink: