GitHub Classroom has integrated with online integrated development environments (IDEs) like Repl.it and Microsoft MakeCode Arcade to facilitate coding assignments for students across different devices without software conflicts. These online IDEs allow students to work within a web browser, enabling them to start assignments quickly and collaborate in real-time, regardless of their device. Repl.it supports multiple programming languages and offers features like private and public assignments, and real-time group collaboration through its Multiplayer sessions, while MakeCode Arcade provides an accessible interface for developing retro arcade games using block programming, supporting a variety of physical computing devices. These integrations allow educators to manage student assignments effectively and utilize GitHub's collaboration features to track both individual and group work, streamlining the teaching process and enhancing the learning experience.