This is a remix of Customizable L-Corner Bracket | Shelf Bracket by @MatthewGhost - the remix includes changes in the code adding configurable countersinks and hole positions, allowing for precise screw placement and a secure fit in various materials. I didn't take anything from Fully Customizable Wall Shelf Bracket but searching MW for Openscad Shelf Bracket I found it, so I just list it here as a remix so it will not be reported for being a one not listing it. Basically it also has fully adjustable dimensions and can be resized to fit any shelf adding holes when scaled up, ensuring a perfect fit for your specific needs. Whether you're reinforcing furniture, building custom shelves, or adding support to existing structures, this bracket offers the flexibility and strength required for any project. Its sleek, durable design ensures both functionality and aesthetic appeal. Adapt it to your specific measurements and holes and print.