diff --git a/account_usability_akretion/pyproject.toml b/account_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/account_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/base_partner_ref/pyproject.toml b/base_partner_ref/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/base_partner_ref/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/base_usability_akretion/pyproject.toml b/base_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/base_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/mrp_usability_akretion/pyproject.toml b/mrp_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/mrp_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/partner_tree_default_account/pyproject.toml b/partner_tree_default_account/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/partner_tree_default_account/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/partner_tree_default_base/pyproject.toml b/partner_tree_default_base/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/partner_tree_default_base/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/partner_tree_default_contacts/pyproject.toml b/partner_tree_default_contacts/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/partner_tree_default_contacts/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/pos_check_deposit/pyproject.toml b/pos_check_deposit/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/pos_check_deposit/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/pos_usability_akretion/pyproject.toml b/pos_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/pos_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/product_usability_akretion/pyproject.toml b/product_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/product_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/purchase_stock_usability_akretion/pyproject.toml b/purchase_stock_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/purchase_stock_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/purchase_usability_akretion/pyproject.toml b/purchase_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/purchase_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/sale_stock_usability_akretion/pyproject.toml b/sale_stock_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/sale_stock_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/sale_usability_akretion/pyproject.toml b/sale_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/sale_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/stock_usability_akretion/pyproject.toml b/stock_usability_akretion/pyproject.toml
new file mode 100644
index 0000000..4231d0c
--- /dev/null
+++ b/stock_usability_akretion/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"