How can I make it so that there are optimal work with files?

Question

linux

I have a problem that I save, I have the following project, if I write data (i.e. create, update files and delete), then you need to give access rights sudo chown -R ruslan.www-data rsi
If you need to upload a file in the browser through a form, then give access rights to the next user sudo chown -R www-data.www-data rsi
Question, How can I make the rights to be normal and not change them?

Answer 1

chmod -R g+rwx rsi

Answer 2

The web server must be configured correctly.
Get an admin.