diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
@@ -0,0 +1,66 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.pot
+*.po
+
+# Odoo specific
+*.log
+filestore/
+session/
+.odoo/
+
+# System
+.DS_Store
+Thumbs.db
diff --git a/README.md b/README.md
new file mode 100644
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# POS Cash Opening Adjustment
+
+**Version:** 17.0.1.0.0  
+**Author:** Suherdy Yacob  
+**Category:** Point of Sale  
+**License:** LGPL-3
+
+## Summary
+Prevent opening cash journal entries and exclude opening float from closing totals while keeping reconciliation data.
+
+## Features
+- **Opening Cash Adjustment:** Modifies how opening cash is handled to prevent unwanted journal entries.
+- **Closing Totals:** Excludes opening float from closing totals calculation.
+- **Zero-Amount Payment Cleanup:** Automatically removes `pos.payment` lines with `0.00` amount during session verification. This prevents the creation of "Difference at closing PoS session" journal items triggered by empty payments (e.g. from 100% discount or external payment edge cases).
+
+## Technical Details
+### Zero-Amount Payment Fix
+The module overrides `_validate_session` in `pos.session`. Before the standard validation process begins, it iterates through all orders in the session and unlinks any payment lines where the amount is considered zero by the session's currency.
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diff --git a/models/__pycache__/pos_session.cpython-310.pyc b/models/__pycache__/pos_session.cpython-310.pyc
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diff --git a/models/pos_session.py b/models/pos_session.py
old mode 100644
new mode 100755
index 4f0ff3f..ce74f67
--- a/models/pos_session.py
+++ b/models/pos_session.py
@@ -132,4 +132,12 @@ class PosSession(models.Model):
                 "expected_amount": expected_total,
                 "amount": expected_total,
             })
-        return data
\ No newline at end of file
+        return data
+
+    def _validate_session(self, balancing_account=False, amount_to_balance=0, bank_payment_method_diffs=None):
+        for session in self:
+            for order in session.order_ids:
+                for payment in order.payment_ids:
+                    if session.currency_id.is_zero(payment.amount):
+                        payment.unlink()
+        return super(PosSession, self)._validate_session(balancing_account, amount_to_balance, bank_payment_method_diffs)
\ No newline at end of file
diff --git a/static/src/xml/closing_popup.xml b/static/src/xml/closing_popup.xml
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