Self Hosting appwrite on digital ocean

When uploading files does the file get stored on the droplet or it stores on digital ocean storage?
Same question for the database does everything get stored on the droplets ssd or you have to create outside db for it

By default everything is stored in the Droplet

You can setup an external mariadb database and connect it to your appwrite instance inside the droplet and for files you can setup S3, backblaze or digitalocean spaces

But will it be a good practice to leave everything stored on the droplet

It's not a good or bad practice. It depends on your needs

Okay thanks

Also is it possible to migrate project from another cloud to a different cloud ?