Is this repository still actively maintained?

Hi @donnemartin,

I noticed the last commit to this repository was over 3 years ago, and there are currently 68 open pull requests pending review.

I'm interested in contributing (specifically adding a new CLI tool), but wanted to check:

1. Is this repository still being actively maintained?
2. Are pull requests being reviewed and merged?
3. If you're looking for help with maintenance, would you consider adding additional maintainers?

This is a fantastic resource for the AWS community, and I'd love to see it continue to grow.

Thanks!