Network-y people, I’ve got my DNS setup to point matpacker.com at Micro.blog as my custom domain. If I want it to be able to work as both matpacker.com and www.matpacker.com what record do I need to add on my DNS to make this happen?

Currently, I have an A record that points matpacker.com at Micro.blog’s IP address, per this article. I believe I need to add a CNAME for the www version to work, however, it’s not overly clear what I should use for the target, do I use Mb’s IP address or my Micro.blog URL, i.e. matpacker.micro.blog?

Thanks in advance for your help! 🤦🏼‍