[porkbrain]

Many reasons are already mentioned in other comments. I'd add the following nice-to-have. Sometimes you'd find it easier/preferable to run some scripts with some other shell.

You can set the shell for some commands, for example:

```

set shell := [ "python3", "-c"]

# I can run python!

[no-cd]

foo-bar:

    @import sys; major, minor = sys.version_info[:2];

    assert (major, minor) >= (3, 7), "This script requires at least Python 3.7. Please link \"python3\" to Python 3.7 or higher and try again."

```

And the API for your commands stays consistent for a very little effort. Of course you can achieve all this with just bash scripts but I find it faster and easier to provide a good devex this way.