Devin Cloud: Cloud Agent Sandboxes on macOS, Linux, and Windows

Melvin Vivas · X video post · 2026-09-23 · 0:56 · 755 views · Open on X

Topics: AI Dev Tools & Productivity, AI Agents, Tool Use & MCP · Level: beginner

Summary

Melvin Vivas shows a feature of Devin Cloud he likes: when you start a cloud agent session, you can pick a macOS, Ubuntu Linux or Windows sandbox. He says this helps when you build desktop or iOS apps that need testing on a specific operating system, and claims OpenAI's Codex cloud agent can't do this. The post closes by asking viewers which cloud agents they use.

Key points

• Devin Cloud can start sandbox environments running macOS, Linux (Ubuntu) or Windows.
• You choose the environment in the Devin Cloud interface before the agent starts working.
• Use case: a desktop app you built has to be tested on at least Windows or Mac, so the agent can do that in the matching OS sandbox.
• iOS apps need a Mac environment, which the macOS sandbox provides.
• The creator claims OpenAI Codex's cloud agent can't start Mac or Windows sandboxes. That is his comparison and isn't verified here.
• When choosing a cloud coding agent, check which operating systems its sandboxes support.

Resources mentioned

• Devin · tool · x.com · paid
  A desktop app from the makers of the Devin coding agent for planning, delegating, reviewing and shipping work across fleets of local and cloud coding agents.
  Also in: Using the Devin iOS App to Build iOS Apps (Quick Demo) (Melvin Vivas on X · notes), Use Your ChatGPT Plus/Pro Subscription to Run Devin (Melvin Vivas on X · notes), OpenAI DevDay recap: Dots, GPT-6.1 Sol, Codex Cloud, Agents API (Melvin Vivas on X · notes), Devin price cuts and top score on FrontierCode 1.1 Extended (Melvin Vivas on X · notes) and 44 more
• OpenAI Codex · tool · openai.com · paid
  OpenAI's coding agent. In the diagram it writes code, fixes review findings and drives the build loop. The creator also used it to make this video.
  Also in: An agent bot that installs and drives Codex on its own (Melvin Vivas on X · notes), Asking a Coder bot to install Codex (Melvin Vivas on X · notes), Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Codex Cloud Environments Must Be Saved & Published Before Use (Melvin Vivas on X · notes) and 240 more

Try this

• If you build desktop or iOS apps, try a cloud agent that can test them in macOS or Windows sandboxes, such as Devin Cloud.
• Compare the cloud agents you use to see which operating systems they support (the creator asks what you use for cloud agents).