The Standard ML compiler that produces Lua/JavaScript

Hindley-Milner type inference in Scheme, for Scheme

EVM assembly as an embedded Common Lisp dsl

Clojure in Common Lisp

Let's simplify the way we write Lisp

Transducers: Ergonomic, efficient data processing.

Embedded WebAssembly runtime for Common Lisp

FUNCTIONAL PROGRAMMING: Application and Implementation, Peter Henderson, ISBN 0-13-331579-7

A naïve continuation-passing-style-transform based compiler for a language asymptotically approaching R5RS Scheme.

syn·di·cate: a language for interactive programs

3-lisp implementation from Procedural Reflection in Programming Languages, volume i., Brian Cantwell Smith

A fresh implementation of Common Lisp

A core concatenative programming language with variables and first-rank polymorphic type inference

The APL programming language (a subset thereof) compiling to Common Lisp.

Functional language for parallel programming

theseus, functional programming language with fully reversible computation

A simple functional programming language.

Wash rinse repeat

Linked data tooling for the Racket programming language (json-ld, eventually more)

awesome racket and scheme project

A purely functional programming language with first class types

a model of MIR and the Rust type/trait system

A mini-Scheme implementation designed for teaching, targeting the web

virtualenv like tool for Racket

A cron-like scheduler for Racket.

async and other concurrent tooling