Demonstration of nix-let

chemoelectric-nixos/pipchix/___build___
❯ (cd r6rs && echo '(import (rnrs)(pipchix base))(output-nix-ast (nix-let ((`a ==> 1)(`b ==> (© `a))(`c ==> (© `b))) (© `c)))' | sagittarius | nixfmt)
(
  let
    gb4634094-27cb-41ed-925d-2a6e1d7bf5bb1 = (1);
    g2b7db5df-2f0c-422c-b8b8-f821c502d7f02 = a;
    g9c6221d2-7d51-4179-a41a-01b5540559fc3 = b;
  in
  (
    (
      let
        a = gb4634094-27cb-41ed-925d-2a6e1d7bf5bb1;
        b = g2b7db5df-2f0c-422c-b8b8-f821c502d7f02;
        c = g9c6221d2-7d51-4179-a41a-01b5540559fc3;
      in
      (c)
    )
  )
)