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dhavalt

Re:Ask HN: What Are You Working On? (July 2026) on Monday July 13, 2026 @09:21AM (#48892287)
Working on a desktop application for llm evaluations.

Show HN: AptSelect – A local LLM client for parallel testing and evaluation

https://aptselect.com

I built AptSelect to stop writing throwaway scripts every time I needed to test how different LLMs handle specific instructions and prompt edge cases.What it does:Parallel Execution: Send a single prompt to OpenAI, Anthropic, Mistral, and Gemini simultaneously. Compare the outputs, latency, and exact token usage side-by-side.Batch Evaluations: Upload a CSV dataset to run bulk tests across...

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Always curious about which llms perform best in specific scenarios, so I built a local desktop app to benchmark and evaluate prompts and llms side by side.
Re:Ask HN: What Are You Working On? (April 2026) on Sunday April 12, 2026 @11:35PM (#47747273)
Love seeing more local desktop apps in these threads, especially ones tackling local network sync like Kitted. I'm a solo dev also in the trenches building a local desktop tool right now, so I know how fun (and painful) those architecture choices can be. Would love to compare notes sometime if you're ever up to chat. Either way, the app looks super solid.

Show HN: AptSelect – A local desktop app to test LLMs side-by-side

https://aptselect.com/

Hi HN,Whenever I needed an LLM to reliably output JSON or follow strict formatting rules, I kept having to write throwaway JavaScript scripts just to test the same prompt against OpenAI, Anthropic, and Google APIs to see who actually followed the instructions. It was a tedious workflow, so I built a local desktop UI to just do it for me.What it does:* Sends one prompt to OpenAI, Anthropic,...

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Re:Ask HN: How did you learn to debug production incidents? on Thursday December 18, 2025 @05:50AM (#46311135)
While debugging a crash or incident, I used to get lost in the specific line of code and trying to fixing symptoms. TLA+ gave me new prespective towards debugging, and started treating system crashes as a state problems rather than just code errors. I stop asking 'Why is this line failing?' and start asking 'How did the system get into this state?'.

And whenever a fix or patch feel like a duct-tape to me, start looking at the architecture and keep asking myself how can this be refactor to make it more resilient.

I realized my brain naturally wants to 'fill in the gaps' with assumptions. Learning to suppress that urge and force myself to verify what is actually happening rather than what I think is happening has been the most important part of my growth.

Its a continues process, you never stop learning.

Show HN: Latent Logbook – Prompt Puzzles Built with Hapi.js and SQLite

https://latentlogbook.com

Hi HN,Longtime lurker here.I built a tiny website called Latent Logbook. It's inspired by the spirit of Advent of Code, but focused on LLMs instead of algorithms.The idea is simple: You get a puzzle (like parsing a messy log file), you solve it using any model you like, and then you share your strategy. The goal isn't just to solve them but to see how different models handle them. It's...

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