You can set environment variables either through the command line, the Nix flake (if you are running nix/NixOS), _or_ the `.env` file
## Create migration database
Run:
```
sqlx database create
```
Only run this if the `DATABASE_URL` environment variable is set (with the `postgres://` protocol) and if the database migration has _not_ been set up yet.
## Create a new migration file
Run:
```
sqlx migrate add -r <name>
```
where `<name>` is the name of the database file name given.
This new migration will be placed in the `migrations/` directory.
