Ask HN: What are you working on? (March 2025)

Re:Ask HN: What are you working on? (March 2025) by benno128 on Sunday March 30, 2025 @07:04PM (#43528671)

Working on Runno (https://runno.dev/) as a side project. It's a tool for running code in the browser for educational use.

[Edit]: I wrote a re-introduction to Runno: The WebComponent for Code over the weekend (https://runno.dev/articles/web-component/)

I've been playing around with turning it into a sandbox for running code in Python (https://runno.dev/articles/sandbox-python/). This would allow you to safely execute AI generated code.

Generally thinking about more ways to run code in sandbox environments, as I think this will become more important as we are generating a lot of "untrusted" code using Gen AI.

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Re:Ask HN: What are you working on? (March 2025) by kmad on Sunday March 30, 2025 @07:34PM (#43528907)

Awesome! Have you considered pyodide[1]? Pydantic uses this for sandboxing its AI agents [2].

1. https://pyodide.org/en/stable/ 2. https://ai.pydantic.dev/mcp/run-python/

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Re:Ask HN: What are you working on? (March 2025) by benno128 on Sunday March 30, 2025 @08:01PM (#43529115)

Thanks! Yeah I'm very aware of Pyodide and interested in adopting some of their techniques.

A big difference between my approach and their approach is that Runno is generic across programming languages. Pyodide only works for Python (and can only work for Python).

Big interesting development in this space is the announcement of Endor at WASM IO which I'd like to try out: https://endor.dev/

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Re:Ask HN: What are you working on? (March 2025) by lhmiles on Sunday March 30, 2025 @07:11PM (#43528720)

Amazing!

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