The Order SMS That Resent Itself on Every Page Refresh

A confirmation message fired from a filter instead of an action, so every reload of the thank-you page sent it again. The fix is one guard and one better hook.
Manual bKash, Nagad and Rocket Payments in WooCommerce

One gateway base class powering three mobile money methods, with transaction capture, admin verification and instructions carried into the order email.
Sending WooCommerce Orders to a Courier via WhatsApp — No API Required

How we added a one-click WhatsApp handoff to WooCommerce that pre-fills courier messages with order details, with no paid Business API required.