How to customize the directory used for nextcloud files?

Currently my umbrel works on a pc with 1 ssd of 1tb and a hd of 4 tb.

I want my installation to continue the 1 tb ssd, however I want the nextcloud files to be saved 4tb hd.

I took a look at docker-compose.yml from next coud and saw the following line:

  • ${APP_DATA_DIR}/data/nextcloud:/var/www/html

Is this where I should change?