diff --git a/text_element_accounting/__manifest__.py b/text_element_accounting/__manifest__.py
index efe4551..83ffefd 100644
--- a/text_element_accounting/__manifest__.py
+++ b/text_element_accounting/__manifest__.py
@@ -6,7 +6,7 @@
     "version": "16.0.1.0.0",
     "license": "AGPL-3",
     "author": "Noviat, Elneo",
-    "website": "https://www.noviat.com/",
+    "website": "https://github.com/jdideren/odoo-text-elements",
     "category": "Accounting",
     "summary": "Text Elements - Accounting module",
     "depends": ["text_element_base", "account"],
diff --git a/text_element_accounting/pyproject.toml b/text_element_accounting/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/text_element_accounting/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/text_element_base/__manifest__.py b/text_element_base/__manifest__.py
index 1848080..63d41dc 100644
--- a/text_element_base/__manifest__.py
+++ b/text_element_base/__manifest__.py
@@ -6,7 +6,7 @@
     "version": "16.0.1.0.0",
     "license": "AGPL-3",
     "author": "Noviat, Elneo",
-    "website": "https://www.noviat.com/",
+    "website": "https://github.com/jdideren/odoo-text-elements",
     "category": "Tools",
     "summary": "Text Elements - Base module",
     "depends": ["base", "web"],
diff --git a/text_element_base/models/text_element.py b/text_element_base/models/text_element.py
index 47f56d2..eb22fff 100644
--- a/text_element_base/models/text_element.py
+++ b/text_element_base/models/text_element.py
@@ -78,7 +78,8 @@ class TextElement(models.Model):
         "Placeholder Expression",
         store=False,
         readonly=False,
-        help="Final placeholder expression, to be copy-pasted in the desired template field.",
+        help="Final placeholder expression, to be "
+        "copy-pasted in the desired template field.",
         compute="_compute_dynamic_placeholder",
     )
     field_ttype = fields.Selection(
diff --git a/text_element_base/pyproject.toml b/text_element_base/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/text_element_base/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/text_element_base/wizards/add_text_element_wizard.py b/text_element_base/wizards/add_text_element_wizard.py
index 297f037..d20367b 100644
--- a/text_element_base/wizards/add_text_element_wizard.py
+++ b/text_element_base/wizards/add_text_element_wizard.py
@@ -72,7 +72,8 @@ def _onchange_text_element_id(self):
                 if (
                     wizard.text_element_id.id in current_record.text_element_ids.ids
                     or current_record.text_element_custom_ids.filtered(
-                        lambda tec: tec.text_element_id.id == wizard.text_element_id.id
+                        lambda tec, wiz=wizard: tec.text_element_id.id
+                        == wiz.text_element_id.id
                     )
                 ):
                     raise UserError(
diff --git a/text_element_purchase/__manifest__.py b/text_element_purchase/__manifest__.py
index 4f684c6..58dc3bd 100644
--- a/text_element_purchase/__manifest__.py
+++ b/text_element_purchase/__manifest__.py
@@ -6,7 +6,7 @@
     "version": "16.0.1.0.0",
     "license": "AGPL-3",
     "author": "Noviat, Elneo",
-    "website": "https://www.noviat.com/",
+    "website": "https://github.com/jdideren/odoo-text-elements",
     "category": "Purchases",
     "summary": "Text Elements - Purchases module",
     "depends": ["text_element_base", "purchase"],
diff --git a/text_element_purchase/pyproject.toml b/text_element_purchase/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/text_element_purchase/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/text_element_sale/__manifest__.py b/text_element_sale/__manifest__.py
index 4fe8283..85b2075 100644
--- a/text_element_sale/__manifest__.py
+++ b/text_element_sale/__manifest__.py
@@ -6,7 +6,7 @@
     "version": "16.0.1.0.0",
     "license": "AGPL-3",
     "author": "Noviat, Elneo",
-    "website": "https://www.noviat.com/",
+    "website": "https://github.com/jdideren/odoo-text-elements",
     "category": "Sales",
     "summary": "Text Elements - Sale module",
     "depends": ["text_element_base", "sale"],
diff --git a/text_element_sale/pyproject.toml b/text_element_sale/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/text_element_sale/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"