…he size of

the final image. This is because the build dependencies, which are not required
in the final image, are excluded.

You can create tags for each stage separately using the `--target` option:
```bash
docker build --target builder -t pyceres:builder .
docker build --target runtime -t pyceres:runtime .
```

However, if you run the `docker build` command without the `--target` option, it
will build up to the last stage defined in the Dockerfile. So, running:
```bash
docker build -t pyceres:latest .
```
is equivalent to specifying `--target runtime`, as runtime is the final stage in
the Dockerfile.

…stages