APEX

Hello -
I'm playing and learning with apex - I understand that I can't keep any data there permanently.

I would like to learn how to share an application, either with folks here (if I have questions), or with anyone else.

I'm sure it's easy and possible - since I see it being done.

Can one of you please give me a nudge in the right direction, so I know what settings I need to work with to make this feasible?

I'd to be able to post or send a link, and have the user sign in with something like demo/demo (or, as ATD does, with any string and demo)

Thank you -
Marion