If you’d rather not build your own from scratch, I’ve put together a lightweight Bash script that extends git log with a few extra features to streamline multi-repo browsing:

• Customizable hooks for running commands before and after each repository’s logs are processed
• Support for multiple root directories
• Flexible exclusion patterns to skip certain repos
• Parallel processing for faster results
• Clear, formatted headers per repo to simplify scanning the output

Feel free to give it a try: https://github.com/thomasklein/mgitlog/