# Test string interpolation
let
  name = "world";
  x = 42;
  bool_val = true;
in {
  # Simple interpolation
  greeting = "Hello ${name}!";

  # Multiple interpolations
  multi = "x is ${x} and name is ${name}";

  # Nested expression
  nested = "Result: ${
    if bool_val
    then "yes"
    else "no"
  }";

  # Just a string (no interpolation)
  plain = "plain text";
}