Redirect to Mypads page if anonymous pads are diabled (etherpad mypads)

My YunoHost server

Hardware: Raspberry Pi at home
YunoHost version:
**I have access to my server :**through the webadmin | direct access via keyboard / screen
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no

Description of my issue

I’ve installed Etherpad Mypads, and disabled anonymous pads in MyPads.
The problem is that it disables the page at the root url of Etherpad, and I need to manually type the mypads’s url to access mypads, otherwise I get redirected to YunoHost portal.
How could I do a redirect ? I can’t find .htaccess.

Not having a solution, I manually edited SSOwat’s conf (sudo nano /etc/ssowat/conf.json), to point to /pad/mypads/.

"": "Etherpad Mypads"

Note that this change is likely to get overwritten as soon as you do any app operation like install / remove / upgrade …

You should edit /etc/ssowat/conf.json.persistent instead

I know that it is not persistent. Thanks for the tip though, I will try that.

What exactly should I put in that file ? I only see :

    "redirected_urls":  {}