How to Write Unmaintainable Code – a 2015 guide to bad programming practices

A GitHub repository titled “How to Write Unmaintainable Code” was published in 2015. The project catalogs patterns that make software difficult to understand and modify. It includes examples of tangled logic, excessive coupling, and obscure naming. The guide serves as a cautionary reference for developers seeking to avoid such pitfalls. Each entry demonstrates how the anti‑pattern harms readability and future maintenance. Contributors illustrate the impact through concise code snippets. The repository is intended for educational purposes within the programming community. Readers are encouraged to recognize and refactor these patterns in real projects.