Maintenance Mode is a great way to display that you’re working on something exciting and at the same time allowing channels of communications open.
This is my testing site.
My personal site is here: https://www.kholwadia.co.uk/.
Don’t be surprised if things look all over the place here and there. It’s not meant to be pretty but should work.
I often go on WordPress Support to either check what users need help with and see if I can fix them or learn from them.