How Wasmer used Codex to build a Node.js runtime for the edge

Engineers at Wasmer figured out how to run Node.js workloads inside a WebAssembly sandbox, letting developers run JavaScript apps, MCPs, and agents without Docker. The effort took two weeks with Codex instead of the year it would have taken otherwise, and the company is now the first cloud host to provide full Node.js at the edge layer.

"We are actually moving out of the IDE itself. We’re not touching as much the code, we are just guiding it where we want it to go." —Syrus Akbary Nieto, Founder and CEO Wasmer is a small team with a big aim: an edge computing platform that scales across local and global environments without platform restrictions.

That ambition produced Edge.js, a JavaScript runtime that can run Node.js workloads for AI and edge computing, a project the team had long wanted to take on. "Everyone here is very, very technical, but we just didn't have the time to dedicate to these projects.

wasmer, codex, node.js, webassembly, edge.js, edge computing, javascript runtime, docker, mcps, agents