Morethanevil

If you only want to start 1 service of your entire compose file just use the name in the service section. No need to comment out everything else. For Lemmy it would be: docker compose up -d postgres

This will only start the postgres container of this stack. Glad you found a way which worked for you ☺️

You need to export your DB and impirt it again. You can not simply upgrade. Switch back to v15 and make a dump.

Here is a little guide.

Pict-rs can be upgraded simply. Edit your docker-compose.yml and spin it up. After tge upgrade is complete, you can do the postgres upgrade

If you want better privacy then stay with brave. If you want maximum privacy look at LibreWolf

Vivaldi is a mix between standard privacy settings and comfort