It works in your browser, but there's also a windows version available: https://davidbyers.itch.io/bitmelo
I built it in react, and you can check out the source code here: https://github.com/byersdz/bitmelo-editor
Bitmelo was born from my desire to have the most friction free game development experience possible. It's heavily inspired by fantasy consoles such as Pico 8 and Tic 80, however while I love the simple nature of their API's I wanted to have a development experience that wasn't constrained by the same limitations as the games you make in them.