submitted 1 year ago by paequ2@lemmy.today to c/programming@programming.dev

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cross-posted from: https://lemmy.today/post/34279957

guix shell sees to it that all of the dependencies (listed in the inputs and native-inputs sections) are available within the shell session it creates by downloading (or building, if necessary) the entire dependency tree.

Should you want/need more isolation from the host system, guix shell has you covered. The --pure flag will clear out most existing environments variables, such as $PATH, so that the resulting environment does not contain pointers to places like /usr. For more Docker-like isolation, the --container flag can be used, which will run the new shell session within a set of Linux namespaces so that the host system is inaccessible.

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[-] HaraldvonBlauzahn@feddit.org 1 points 1 year ago* (last edited 1 year ago)

As a first approximation, there is not much to learn. The lisp syntax thing is a scarecrow for the uninformed

In Python, you write:

a = atan2(x, y)
b = sin(x)
c = b if x > a else 1
# use values of a, b and c here

Where the indentation is a block.

In Scheme, you write:

(let ((a (atan2 x y))
      (b (sin x))
      (c (if (> x a) b 1)))
       ; use values of a, b, and c here
)

Where the outer paren around "let" determines the scope of the binding, and the scope serves as an expression with a value (like in Rust), and scopes can be nested arbitrarily deep.

this post was submitted on 25 Jul 2025

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