Can this one be rewritten to avoid .configured now?

defs = Definitions(
    assets=load_assets_from_modules(...),
    executor=multiprocess_executor.configured(
        config_or_config_fn={
            "start_method": {"forkserver": {}},
            "max_concurrent": 8,
        }
    ),
)

This might be a good one to add to concurrency examples once it's in the new pythonic config style - I found it was really helpful to apply a kind of default run-level concurrency at the code location level, which then kicks in for jobs and ad-hoc runs. Nice and simple.