A friendly little systems language with first-class types. Very WIP! 🚧 🚧 🚧

Normalization by evaluation for Martin-Löf Type Theory with dependent records

bidirectional type checking algorithms for higher-ranked polymorphism

Bidirectional type checker for the simply typed lambda calculus

Tina, a programming language with typed algebraic effects and handlers.

Lambda Calculus compiler targeting x86, written in Racket

Contextual Typing, formalised in Agda

Bidirectional type checking for predicative System F

↔️ An implementation of "Sound and Complete Bidirectional Typechecking for Higher-Rank Polymorphism with Existentials and Indexed Types" in Rust.

A blossoming type system.

Junu Spaghetti, a language that types spaghetti code

A prototypal object oriented language that borrows heavily from functional programming concepts and languages

Various implementations of the lambda calculus and friends