TechBrief — تازه‌ترین اخبار فناوری

The Best Kindle Accessories (2026): Cases, Page Turners, Stickers

Looking to better protect your Kindle or add a little personality to your favorite e-reader? From cases and covers to page-turners and even charms, this is the guide for you.

The Smart Bird Feeders Everyone’s Talking About (and Actually Buying) (2026)

These bird feeders come with cameras and connected apps to let you see and learn about the birds in your neighborhood.

Asahi Linux Progress Linux 7.0

Article URL: https://asahilinux.org/2026/04/progress-report-7-0/

Comments URL: https://news.ycombinator.com/item?id=47909226

Points: 9

# Comments: 0

The Best Permanent Outdoor Lights (2026): Govee, Eufy, Cync

Permanent eave lights that attach to the exterior of your home are becoming more popular. But are they worth the effort and cost?

Ikea's New Blow-Up Chair Was Tested by Cats

Part of the new PS 2026 collection, it's taken the Swedish company 26 years to finally nail inflatable furniture.

Show HN: A free ESG stock screener that publishes its losses and methodology

Hey HN, JSS(JumpstartSignal) is a free, ESG-filtered daily stock screener. I built it after some really badly-timed quantum computing stock buys, so I felt I needed to learn more about systematic, longer-horizon approaches and the underlying technicals instead of chasing themes. Three things about it that might be of interest:

1. Methodology is fully documented at https://jumpstartsignal.com/how-it-works/ 5-stage pipeline, 54 signals tested individually plus 1,836 combinations evaluated, walk-forward validation across 25 hold periods. Nothing hand-tuned to a single backtest window.

2. Many wins, misses, and losses are published as case studies e.g. https://jumpstartsignal.com/case-studies/nvda/ walks through the 32 times the system flagged NVDA starting at $5.44 in 2018. https://jumpstartsignal.com/case-studies/sedg/ shows a -49% loss, and https://jumpstartsignal.com/case-studies/tsla/ explains why the system never flagged Tesla (it passed Stages 1 and 2 on 207 days but only peaked at 20/100 in scoring vs the 70 needed for OPPORTUNITY tier). https://jumpstartsignal.com/results/ also shows the 10 best entries alongside the 10 worst.

3. A genetic algorithm picked the signal weights, but constrained to maintain alpha across multiple market regimes (otherwise it overfits to a single bull market). The constraint dropped some "best in backtest" configurations that only worked 2018-2021.

Topline: 2012-2025 backtest at SPOTLIGHT + OPPORTUNITY tier produced +163% alpha vs SPY (results page has the per-trade breakdown).

Daily watchlist emailed free; reports + results + case studies are publicly browsable without signup.

Happy to take questions about methodology, what the system gets wrong, or why specific tickers landed where they did.

Comments URL: https://news.ycombinator.com/item?id=47908912

Points: 4

# Comments: 2

Della Optima TP Series Mini-Split AC Review: Cheap, Smart, and (Mostly) Reliable

Ductless AC systems get smart tech features—and the growing pains that come with them.

Statecharts: hierarchical state machines

Article URL: https://statecharts.dev/

Comments URL: https://news.ycombinator.com/item?id=47908833

Points: 65

# Comments: 11

What Type of Mattress Is Right for You? (2026)

Here’s how to pick the best mattress for your sleep needs, straight from a professional mattress tester.

Eden AI – European Alternative to OpenRouter

Article URL: https://www.edenai.co

Comments URL: https://news.ycombinator.com/item?id=47908433

Points: 69

# Comments: 39