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nseskinon How to Write an Effective Software Design Document

I’m curious how you handle design docs when requirements change significantly during implementation. At some point, updates and corrections can start describing a somewhat different project from the one that originally went through review.

Is there a rule of thumb for when it’s enough to update the existing document, and when the design has changed enough to justify a new design doc and another review?

nseskinon Show HN: NanoVector – A 120KB zero-dependency vector search engine in C and SIMD

Great work! I really like projects that have such a clearly defined scope and stay completely focused on it.

nseskinon Show HN: Self-host open-source LLMs on AWS with scale-to-zero

What happens when AWS interrupts a Spot instance? I don't see an ASG in the architecture — does the controller detect the terminated worker and provision a replacement automatically?

nseskinon How well do agents use test/verification techniques?

I think this article demonstrates a broader problem with constraint following in LLMs. Agents often satisfy the most obvious and easily verifiable part of a task, but lose track of the constraint that actually determines success.

Testing makes this especially clear: “use fuzzing” turns into generating random bytes, and “use formal verification” into proving a property that isn’t particularly useful. Formally, the technique is applied, but its actual purpose is lost.

This may also explain why different testing techniques produce similar results: the problem may be less about knowing a particular technique and more about the agent’s ability to keep its actual goal as the primary constraint.

nseskinon Apparently CodePen 2.0 sends data to their servers as you type

There’s a detailed discussion of the same issue here https://www.reddit.com/r/webdev/comments/1rj1oac/i_planted_f...

nseskinon Cloud in a Bottle: making self-hosting accessible to everyone

Are there currently any per-app CPU or memory limits? If not, could an app with a memory leak or high CPU usage affect the entire server and other applications? Are there any plans to enforce resource limits using Podman/cgroups?

nseskinon Ask HN: Who wants to be hired? (September 2026)

Location: Portugal, Europe

Remote: Remote or Hybrid

Willing to relocate: No

Technologies: Ruby, Ruby on Rails, PostgreSQL, Redis, Sidekiq, Kafka, RabbitMQ, REST APIs, GraphQL, Vue.js, React, Stimulus, Tailwind CSS, AWS, Kubernetes, Docker, Ansible, CI/CD, LLM APIs, OCR, High-Load Systems

Résumé/CV: https://drive.google.com/file/d/1UCpDzRGk0M5sj9LCfdnQavRXCJp...

Email: nseskin[at]gmail.com