Htmx 4.0, the first JavaScript library to release exclusively on the Game Boy | Hacker News

htmx 4.0 was announced in a surprising form: a physical Game Boy and Game Boy Color cartridge rather than a traditional software release.

The retro game includes four levels across three biomes, a final boss, and a bonus feature that unlocks the source code after completion.

Built as a playful promotional stunt, the release is designed to draw attention to the htmx project through a collectible indie-style game.

The project blends software marketing with vintage hardware, making the release notable for both htmx fans and retro gaming collectors.