Smelter

Run Coalton Without the Setup

No SBCL. No Quicklisp. No Lisp environment. Just run.

brew tap abacusnoir/smelter && brew install smelter
curl -fsSL https://github.com/abacusnoir/smelter/releases/latest/download/install.sh | bash

⚡ Zero Setup

No SBCL install. No Quicklisp config. One curl command and you're running Coalton.

🎯 Share Examples

Try coalton.app, copy your code, run it locally. Perfect for learning and sharing.

🚀 Scripts That Work

Write automation, tools, and utilities. Type-safe by default, batteries included.

Quick Start

#!/usr/bin/env smt run
(declare fibonacci (Integer -> Integer))
(define (fibonacci n)
  (match n
    (0 0)
    (1 1)
    (n (+ (fibonacci (- n 1))
          (fibonacci (- n 2))))))

(define main
  (println (show (fibonacci 10))))

# Try it at coalton.app, then run it here. No setup needed.