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Recursive Filters: SMA, EMA, Low‑Pass, and a Tiny Kalman

https://www.staszewski.xyz/blog/recursive-filters/
12•kamilstaszewski•1d ago

Comments

deepsun•47m ago
Too basic, I'm not sure anyone needs that to solve the task as basic would need to read an article, it's obvious.

> Tune by eyeballing lag vs. noise.

In any serious installations (more than a homelab) you want some numeric metrics, not eyeballing. E.g. management or next engineer may reasonably ask "why alpha is 0.8? what's the rationale, why not 0.85", you want some formula to show it's what we want.

Vaslo•28m ago
Too basic for who? You?

AI's top startups are barely publishing their research

https://www.science.org/content/article/ai-s-top-startups-are-barely-publishing-their-research
204•YeGoblynQueenne•4h ago•116 comments

The coolest use for the Vision Pro

https://christianselig.com/2026/07/vision-pro-house/
389•robbiet480•5h ago•188 comments

Show HN: Open-source engine running Gemma 4 26B in 2 GB RAM on any M-series Mac

https://github.com/drumih/turbo-fieldfare
657•gitpusher42•10h ago•227 comments

Superlogical

https://www.superlogical.com/
528•yan•10h ago•327 comments

LLM Honeypot

https://llm2human.pages.dev/
53•8thom•3h ago•20 comments

Keychron announces first open-source firmware for gaming mice

https://www.digitalfoundry.net/news/2026/07/keychron-announces-first-open-source-firmware-for-gam...
293•JLO64•9h ago•109 comments

The Cold Email

https://zachholman.com/posts/cold-email
89•holman•4h ago•38 comments

Anatomy of a Frontier Lab Agent Intrusion: A Timeline of the July 2026 Incident

https://huggingface.co/blog/agent-intrusion-technical-timeline
294•artninja1988•1d ago•177 comments

The Productivity Mirage

https://frantic.im/mirage/
44•msephton•2h ago•14 comments

KOReader

https://koreader.rocks/
667•Cider9986•14h ago•211 comments

Kimi K3-256k

https://www.kimi.com/code/docs/en/kimi-code/models
340•monneyboi•6h ago•99 comments

Flume Water Monitor 915 MHz Security Is Pretty Good

https://waveformsecurity.com/blog/flume/
5•credibleconure•28m ago•0 comments

Starter Homes Are Piling Up While Luxury Homes Fly Off the Market

https://www.zillow.com/research/starter-homes-price-tiers-36571/
14•toomuchtodo•52m ago•6 comments

Show HN: A local merge queue for parallel Claude Code agents

https://github.com/funador/claude-code-merge-queue
16•funador•1h ago•3 comments

A.I. companies are recruiting electricians and carpenters by the thousands

https://www.nytimes.com/2026/07/29/business/economy/data-center-electricians-training.html
216•thm•11h ago•272 comments

SalesPatriot (YC W25) Is Hiring FDEs

https://www.ycombinator.com/companies/salespatriot/jobs/M46X6YX-forward-deployed-engineer
1•maciejSz•4h ago

Recursive Filters: SMA, EMA, Low‑Pass, and a Tiny Kalman

https://www.staszewski.xyz/blog/recursive-filters/
12•kamilstaszewski•1d ago•2 comments

A pharmacy chain in Vermont implemented AI for efficiency

https://vtdigger.org/2026/07/29/a-pharmacy-chain-in-vermont-implemented-ai-for-efficiency-its-led...
4•omerhj•20m ago•0 comments

Document-borne AI worms can self-propagate through Copilot for Word

https://enklypesalt.com/posts/context-collapse-part3-ai-worming-through-word/
347•Canopy9560•14h ago•267 comments

Handbook.md shows that long policy documents do not reliably govern agents

https://arxiv.org/abs/2607.25398
294•spIrr•12h ago•182 comments

Turning a dumb AC unit smart (without losing my security deposit)

https://prilik.com/blog/post/automating-ac-nyc/
109•austinallegro•7h ago•88 comments

A Trampoline

https://dogdogfish.com/blog/2026/07/29/a-trampoline/
71•matthewsharpe3•5h ago•40 comments

Angels in Coptic Magic I: Introduction

https://www.coptic-magic.phil.uni-wuerzburg.de/index.php/2026/01/16/angels-in-coptic-magic-i-intr...
5•jruohonen•3d ago•0 comments

Show HN: CheapFoodMap – A map of good meals under $10

https://cheapfoodmap.com/
129•jaep1•8h ago•153 comments

Commodification of Intelligence: Good, Bad, and Ugly Circular AI Deals

https://www.emergingtrajectories.com/lh/commodification-and-circularity/
59•cl42•6h ago•29 comments

Darktable

https://www.darktable.org/
296•siatko•13h ago•142 comments

Refactoring cuisine: how an Iraqi stew sailed to Singapore

https://iza.ac/posts/2026/07/the-journey-of-bamya/
23•infinitewalk•3d ago•5 comments

Man and the Computer by John G. Kemeny (1972 book by the co-creator of BASIC)

https://archive.org/details/mancomputerbyjoh0000john
17•MilnerRoute•3h ago•9 comments

Launch HN: Tokenless (YC S26) – Automatic model switching to save money

https://usetokenless.com/
53•rohaga•9h ago•44 comments

Some thoughts about Anthropic's new cryptanalysis results

https://blog.cryptographyengineering.com/2026/07/29/some-notes-about-anthropics-new-results/
107•supermatou•9h ago•55 comments