[Tiki-devel] testing tiki version and virtualmin (switching)

Hello,

I was wondering if someone has a good recipes for this.

I have a Tiki22 in production built from a git repo and set with a virtualmin (Debian) server.
I want to start testing a Tiki23 of this website.

I need to setup a Tiki 23 and copy there some files (themes, etc) and use a clone of the db.

Knowing that if it is working fine I want to use it instead of the actual Tiki22 what will be the best move ?
- Create a domain for the Tiki23 and if it work fine, back to the main domain => rename the public_html (to keep it safe) and then copy the public_html file of the Tiki23 in the main domain ?
-  Rename the existing public_html (to keep it safe) and then with a new public_html install a Tiki23. (so I can mv the directories when I want to use the existing Tiki22 or new Tiki23)

All this look a bit risky hazardous.

Any good recipes more safe  ?

Bernard