Brig
A MicroVM sandbox for AI coding agents on Mac and Linux
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
Hi HN, I’m Spiros from NOFire AI. We’ve open-sourced Brig under Apache 2.0.Brig runs AI coding agents inside a microVM on Mac (Apple Silicon) and Linux (x86_64/ARM). It came out of our work on controlled autonomy for production remediation. The same isolation is useful when running coding agents with auto-approval on your own machine.The agent gets its own Linux kernel. You choose the project and credentials to share. The shared project remains writable, and the default network allows internet access.After installation, brig run claude starts Claude Code inside the sandbox.All components are Apache 2.0, including the microVMM, which is under 20,000 lines of code. The README covers installation, the architecture and the security model.
HN · launched Sep 22, 2026 · 9 upvotes (top 46%) · 0 views
Niche: ai agent execution sandboxes · 137 launches, 6 in the last 7 days ▼ -25% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Commercial product
More like this: all 137 launches in ai agent execution sandboxes →
Could you build this?
No Brig requires deep systems virtualization expertise, low-level hypervisor management (Apple Hypervisor.framework on macOS and KVM on Linux), and guest-host IPC bridging to securely run isolated microVMs.
What it would actually take: Building Brig requires low-level systems programming in Rust, C, or Go, interfacing with macOS Virtualization.framework and Linux KVM/Firecracker/Cloud-Hypervisor. Hard aspects include custom rootfs creation, kernel configuration, virtio-fs shared filesystem mounting, networking bridging, and secure guest-to-host process orchestration.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one : 1282 launches clear the similarity bar, closest 8 shown.
Attention rank: #611 of 1283 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 323 days after the earliest competitor.
- opencode-rust · github · 2026-10-13 · 72 upvotes · similarity 0.54
- Dock · ph · 2026-10-27 · 1 upvotes · similarity 0.53
- Krill · ph · 2026-10-28 · 1 upvotes · similarity 0.53
- Run coding agents in microVM sandboxes instead of your host machine · hn · 2026-04-23 · 63 upvotes · similarity 0.52
- AgentBox · ph · 2026-09-25 · 1 upvotes · similarity 0.52
- We instrumented Claude Agent SDK using a tiny Rust proxy · hn · 2025-12-04 · 6 upvotes · similarity 0.51
- lingcage · github · 2026-09-12 · 11 upvotes · similarity 0.51
- Agentty · ph · 2026-10-03 · 1 upvotes · similarity 0.50
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.