Adding a custom function to .zprofile

[philcruz]

Of course, as soon as I submit the question I found the answer in

Need help understanding how to escape special characters in the list of str type

As long as it resolves to a string on eval you can put any expression in parens, and you can import external text files like so: [ (builtins.readFile ./config.exs) # or using interpolation to blend strings with code '' some import string content ${lib.fileContents ./other.txt} '' ] builtins.readFile adds an extra newline at the end of the file, if you need to avoid this you can use lib.fileContents from nixpkgs instead.