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Show HN: TakoVM – Isolated model and tool execution used by enterprises

Run untrusted Python safely. Job queues and Docker isolation built-in. Run AI-generated code in isolated Docker containers with optional gVisor sandboxing.

Hacker News 3d ago

Show HN: Nucleus – A security-hardened, Nix-native container runtime

Extremely lightweight, security-hardened, declarative container runtime for agents and production services Nucleus is a minimalist container runtime for Linux. It provides isolated execution environments using Linux kernel primitives without the overhead of traditional container runtimes. For production services, it is designed around a fully declarative model: Nix builds the root filesystem, the NixOS module declares the service, and Nucleus mounts a pinned, reproducible closure at runtime.

Hacker News 17h ago

Pyro Caml Continuous Profiler for OCaml

The core SAST engine of Semgrep is written in OCaml. There are a lot of good technical and historical reasons for this that I’ll leave for another time. An important consequence of using a language with a (relatively) small ecosystem like OCaml is that there aren’t a lot of libraries for things like observability, which are critical for running industrial software like Semgrep on hundreds of thousands of code repositories, and keeping it both reliable and performant.

Hacker News 7d ago

Anthropic's open-source framework for AI-powered vulnerability discovery

A reference implementation for autonomous vulnerability discovery and remediation with Claude, based on our learnings from partnering with security teams at several organizations since launching Claude Mythos Preview. For a write up of these learnings along with best practices, see the accompanying blog post (also available in blog-post.md ). For a lightweight SDK-only walkthrough of the same recon → find → triage → report → patch loop, see the companion cookbook.

Hacker News 5d ago

The ways we contain Claude across products

Get the developer newsletter Product updates, how-tos, community spotlights, and more. Delivered monthly to your inbox. Twelve months ago, we'd have rejected out of hand the idea of granting Claude access sufficient to take down an internal Anthropic service.

Hacker News 6d ago

Self-hosted dev sandboxes with preview URLs (Docker, Go, no K8s)

The open-source engine for AI app-builder products. Give every user an isolated cloud dev environment, a built-in coding agent, and a live preview URL — self-hosted, on one machine, in one command. Think of the apps where you type "build me a todo app" and seconds later a working website appears at its own link — like Lovable, Bolt, v0, or Replit. sandboxed is the open-source backend that makes that possible, running on your own server.

Hacker News 6d ago

How we run untrusted customer code at scale

Nango is a code-first platform for building product API integrations. Customers connect their apps to Salesforce, Google Calendar, Slack, and a few hundred other APIs. Much of the code behind those integrations is written by our customers and deployed to us.

Hacker News 1d ago