<a href="README.macos">it looks like a MacOS port
would be pretty easy.</a></p>

<h2>Limitations</h2>

<ul>

<li> The following are missing: user-defined macros, eval,
     quasiquotation, 
     first-class continuations, vectors, numerical constants with
     radix prefixes, ports, "let*", "letrec",
     non-top-level defines ("internal definitions"), "do", promises,
     non-integer numbers, bignums, load, apply,
     case-insensitivity, multiple-value returns. </li>

<li> Pairs are immutable, so there ar