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Riza
Company blog · riza.io/blog · on HN as conroyaiprogrammingsecurity
Riza is the company blog at riza.io, writing about ai, programming and security. Since 2024, 4 different Hacker News readers have linked it 15 times, most often “Claude computer use first impressions”. It is still writing: the last post was on 2025-08-11, and you can follow it by feed.
Riza is the production-ready isolated runtime for untrusted code.
Most-linked posts?
- /2 people · 4 mentions · first linked 2024-07-24
- Claude computer use first impressions2 people · 2 mentions · first linked 2024-10-31
What Hacker News says?
Yes, we are doing this at Riza[0] (via WASM). I'd love to have folks try our downloadable CLI which wraps isolated Python/JS runtimes (also Ruby/PHP but LLMs don't seem to write those very well). Shoot me an email[1] or say hi in Discord[1]. [0]: https://riza.io [1]:mailto:andrew@riza.io [2]: https://discord.gg/4P6PUeJFW5
Comment linking /
on “Large Enough”Submitted Show HN: Riza - Safely run untrusted code from your app as a story · 24 points
HN discussionRiza, Inc. ( https://riza.io ) | SWEs and DevRel Engineers | Full-time or part-time | San Francisco We use WASM to provide isolated runtimes for executing untrusted code, mostly generated by LLMs. Our customers do things like extract data from log lines at run time by asking claude-3-5-sonnet to generate a parsing function on-the-fly and then sending it to us for execution. Things we need help with: * Our janky acco…
Comment linking /
on “Ask HN: Who is hiring? (August 2024)”Submitted Show HN: Riza – Safely run untrusted code from your app as a story · 11 points
HN discussionRiza | San Francisco | Full-Time | System, Backend, and Full-Stack Engineers | https://riza.io We provide isolated runtimes for executing untrusted code, mostly generated by LLMs. Our sandboxing is powered by a combination of WebAssembly, V8, and microVMs. Our customers do things like extract data from log lines at run time by asking claude-3-7-sonnet to generate a parsing function on-the-fly and then sending it to…
Comment linking /
on “Ask HN: Who is hiring? (April 2025)”Submitted Riza raises $2.7M to power the next generation of AI-written code as a story · 3 points
HN discussionRiza | San Francisco | Full-Time | System, Backend, and Full-Stack Engineers | https://riza.io We provide isolated runtimes for executing untrusted code, mostly generated by LLMs. Our sandboxing is powered by a combination of WebAssembly, V8, and microVMs. Our customers do things like extract data from log lines at run time by asking claude-3-7-sonnet to generate a parsing function on-the-fly and then sending it to…
Comment linking /
on “Ask HN: Who is hiring? (May 2025)”Submitted Building an AI agent that writes its own tools as a story · 3 points
HN discussionwasmtime works as long as you make sure to include the lib directory % wasmtime run --dir .::/ python.wasm -c 'print("hello world")' hello world disclaimer: I run a code execution API service ( https://riza.io/playground ) that does this and more (HTTP, packages, etc.)
Comment linking /playground
on “Spin 3.0 – open-source tooling for building and running WASM apps”Submitted Just-in-time programming as a story · 3 points
HN discussionSubmitted Updating Simon Willison's ReAct implementation for 2024 as a story · 2 points
HN discussionSubmitted Getting Started with Claude Computer Use as a story · 2 points
HN discussionSubmitted Claude computer use first impressions as a story · 2 points
HN discussionSubmitted What GPT-4o Can't Code as a story · 1 points
HN discussionSubmitted Running HumanEval Safely with Riza as a story · 1 points
HN discussion
