Tbe usual 512MB

NC 16.0.x
Installed on Synology NAS
“The current PHP memory limit is below the recommended value of 512MB.”

Have looked and changed in the php.ini files that I could find
here is it 512M, but obviously this does not work. Spent a few hours googling but can’t figure out how to find the magic incantation to change.

How to find the actual php.ini file I should be modifying?

Using the search function of this forum in the upper right corner, I found this which might help you getting everything configured correctly: