emergeshift/mixumart is an early-stage runtime that manages isolated environments and windows on the host side so that agents can use real computer environments. It is written in Rust and follows the Apache-2.0 license. There is no latest release information in FACTS. A single desktop app and a command-line tool handle Apple Container, Docker, and WSL 2. What this repository puts forward is the job of managing, on the host, the execution environments that agents will use.
This project holds not only isolated environments but also the windows that agents will handle and the connection features. According to the description, it streams native GUI windows from Wayland to Metal, and also provides an MCP server and instant snapshot functionality. So rather than a tool that merely wraps agent execution commands, it is closer to a runtime that manages environments and GUI windows together. However, the provided information does not specify in detail what state the snapshot saves or restores.
The README describes the runtime as being at the alpha stage. The primary path in use is macOS with Apple Container, and it explicitly states that Docker and WSL 2 have not been tested to the same level. Therefore, the fact that it supports three environments does not mean the user experience or stability is the same. For now, it is close to an early-stage project worth examining for a structure that connects multiple execution environments and GUI windows to agents.