# Rhodium HDL language

**URL:** <https://racket.discourse.group/t/rhodium-hdl-language/4465>\
**Category:** Show & Tell\
**Tags:** rhombus, language\
**Created:** [November 8, 2026, 11:41am UTC](https://racket.discourse.group/t/rhodium-hdl-language/4465 "2026-11-08T11:41:14Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dharmatech](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/dharmatech/32/1996_2.png) [@dharmatech](https://racket.discourse.group/u/dharmatech)\
**Post date:** [November 8, 2026, 11:41am UTC](https://racket.discourse.group/t/rhodium-hdl-language/4465/1 "2026-11-08T11:41:14Z")

</div>

Just found this project:

> **[GitHub - jerryz123/rhodium: An HDL built on Rhombus/Racket](https://github.com/jerryz123/rhodium)**
>
> An HDL built on Rhombus/Racket

Hardware description language built on Rhombus.  
Created by Jerry Zhao, hardware engineer at OpenAI.

Example:

```scheme
#lang rhodium

circuit Adder(width :: PosInt):
  input(a, b): Bits(width)
  output sum: Bits(width)
  sum <== a + b

def program = elaborate(Adder(8))

export:
  Adder
  program

```