Shortest path to staging & testing

Not the solution we really want for hosting data on S3 but it'll do for now.
Is there something we can do upstream in kconfig to make this less icky?  One thing I've seen ops do in configs where a list is expected is to force a newline, something like:

```
[section]
foo_list = \
    bar
```

But that's still pretty fragile and we'd have to handle it cleanly here anyway.