Enhancements to Elixir IEx Shell History

The author nhpip revisited an early Elixir project aimed at enhancing the IEx shell experience. The original project was broken due to improvements made by the OTP team to the shell, prompting nhpip to update the project. The enhancements include features like saving shell history and shell variable bindings between virtual machine and shell restarts, as well as implementing more efficient navigation and editing capabilities within the shell. These features are particularly beneficial for debugging directly from the shell. The project seems to be helpful for Elixir developers who rely on the interactive shell for their work, providing both convenience and time-saving functionalities. It is shared through GitHub and Hex.pm for other developers to utilize and contribute to.