From Lume to Containerization: Our Journey Meets Apple's Vision

Published on June 10, 2025 by Francesco Bonacci Yesterday, Apple announced their new Containerization framework at WWDC.

Since then, our Discord and X users have been asking what this means for Cua virtualization capabilities on Apple Silicon.

We've been working in this space for months - from Lume to Lumier to Cua Cloud Sandbox .

Here's our take on Apple's announcement.

When we started Cua, we wanted to solve a simple problem: make it easy to run VMs on Apple Silicon, with a focus on testing and deploying computer-use agents without dealing with complicated setups.

We decided to build on Apple's Virtualization framework because it was fast and well-designed.

This became Lume, which we launched on Hacker News .

Four months later, we're happy with our choice.

Users are running VMs with great performance and low memory usage.

Now Apple's new Containerization framework builds on the same foundation - showing we were on the right track.

Apple's Containerization framework changes how containers work on macOS.

Here's what's different: Instead of running all containers in one shared VM (like Docker or Colima), Apple runs each container in its own tiny VM: …