Tuesday, 6th January 2026
Tool
v86 Linux Emulator
— Run Linux commands directly in your browser using x86 emulation powered by v86. The emulator boots a minimal Linux distribution and provides a terminal interface where you can execute shell commands and view their output in real-time. Boot times typically range from 10-30 seconds depending on your device and connection speed.
A field guide to sandboxes for AI (via) This guide to the current sandboxing landscape by Luis Cardoso is comprehensive, dense and absolutely fantastic.
He starts by differentiating between containers (which share the host kernel), microVMs (their own guest kernel behind hardwae virtualization), gVisor userspace kernels and WebAssembly/isolates that constrain everything within a runtime.
The piece then dives deep into terminology, approaches and the landscape of existing tools.
I think using the right sandboxes to safely run untrusted code is one of the most important problems to solve in 2026. This guide is an invaluable starting point.