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Description
Is your feature request related to a problem? Please describe.
I'd like syntax highlighting for bash scripts and similar, which I don't get in TOML.
Also, I'd like it if the scripts were invokable by people who don't want to use nix, provided they have a properly configured environment.
Describe the solution you'd like
instead of command = '''...'''
, I'd like commandFile = './scripts/foo.sh'
Describe alternatives you've considered
perhaps some toml import synatx something or other, but that seems too complex.
Additional context