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Sandman App – Sleep-safe red filiter for Mac/lin/win, removes blue and green

https://cyrusradfar.com/labs/sandman
2•cyrusradfar•2h ago

Comments

cyrusradfar•2h ago
Good eve or good day!

tl;dr

App that only lets red light through the monitor. On Mac, has no CPU impact as it runs through display controller. Slightly different mechanisms on win/linux.

Free to install and test it out if you like it. Nothing remote in it including no telemetry. No accounts needed, totally free.

Tell me what you think (especially if it's late for you).

Screenshot of what my scren looks like:

https://x.com/cyrusradfar/status/2029478321277551005

or

https://xcancel.com/cyrusradfar/status/2029478321277551005

Looking for suggestions: project orchestration solutions

1•paulistaunb•1m ago•0 comments

Simple and Inexpensive Website Monitoring

https://updown.io/
1•jauco•2m ago•0 comments

China's new 5-year plan calls for AI throughout its economy, tech breakthroughs

https://www.reuters.com/world/asia-pacific/china-vows-accelerate-technological-self-reliance-ai-p...
1•campuscodi•3m ago•0 comments

Show HN: Unblurry – Your memory lies about how you work

https://www.unblurry.app/
1•ImaneIdrissi•4m ago•0 comments

macOS Tahoe windows have different corner radiuses

https://lapcatsoftware.com/articles/2026/3/1.html
1•giuliomagnifico•5m ago•0 comments

Show HN: Notation – Real-time AI clinical notes for physical therapists

https://fownd.care
1•Sharanxxxx•7m ago•0 comments

Show HN: AlifZetta – AI Operating System That Runs LLMs Without GPUs

https://axz.si/
2•padamkafle•7m ago•1 comments

Show HN: Mirra – AI turns ideas into social media carousels and videos

https://www.mirra.my/ko
1•gtp7473•8m ago•0 comments

Google Just Made Your Reports Watchable. and Video Editors Are Worried

https://medium.com/@tbelbek/google-just-made-your-reports-watchable-and-video-editors-are-worried...
1•rdstrtwlkr•10m ago•0 comments

Free Ways to Find Someone's Email Address

1•lakshmirk•12m ago•0 comments

Microplastics and nanoplastics in urban air originate mainly from tire abrasion

https://phys.org/news/2026-03-microplastics-nanoplastics-urban-air-abrasion.html
1•JeanKage•12m ago•0 comments

FlowLessAI – connects to GitHub, audits your codebase, delivers a PR with fixes

https://www.flowlessai.one/
1•mozinovati•13m ago•1 comments

Qwen3-ASR-Swift

https://github.com/ivan-digital/qwen3-asr-swift
2•handfuloflight•13m ago•0 comments

X Accounts with over 1M Followers

https://millionsclub.win/
1•saejox•14m ago•1 comments

Can the Most Abstract Math Make the World a Better Place?

https://www.quantamagazine.org/can-the-most-abstract-math-make-the-world-a-better-place-20260304/
1•mathgenius•14m ago•0 comments

Show HN: Compare ORMs Side-by-Side

https://orm-party.fkey.dev/?f=django-prisma
1•kuchin•17m ago•0 comments

Delta – 3D racing game for MSX2 (z80)

https://jacco.ompf2.com/delta-dodge-engage-launch-target-assault/
1•jbikker•17m ago•1 comments

Summer Academy for Intercultural Dialogue 2026

https://survey.lamapoll.de/SAID26
1•rendx•24m ago•0 comments

Trojan Source: Invisible Vulnerabilities

https://arxiv.org/abs/2111.00169
2•rbanffy•24m ago•0 comments

RemixAI – All-in-One AI Platform to Generate Images, Videos and Creative Effects

1•rosemery•27m ago•0 comments

Insightful Pipe

https://insightfulpipe.com
1•bellamoon544•27m ago•1 comments

Why every demo account is named John DOE (a 700-year-old reason)

2•deep1283•29m ago•0 comments

The One Question That Exposes Fake Product-Market Fit

https://susanjmontgomery.substack.com/p/the-one-question-that-exposes-fake
1•mgav•31m ago•3 comments

Open YouTube links directly in the app, skip the browser

https://ytopen.app
1•ssarisen•34m ago•0 comments

The US military is still using Claude – but defense-tech clients are fleeing

https://techcrunch.com/2026/03/04/the-us-military-is-still-using-claude-but-defense-tech-clients-...
1•marcofloriano•34m ago•0 comments

Child's Play

https://cinemasojourns.com/2026/03/05/childs-play/
1•jjgreen•38m ago•0 comments

RasS (Rounding-as-a-Service)

https://github.com/jtayped/raas
4•matan-h•39m ago•1 comments

Federated Systems Dissapear

https://test.roelof.info/log/how-federated-systems-dissapear/
1•OuterVale•42m ago•0 comments

Show HN: I Built Glassdoor but for Food Delivery Drivers in Dubai

https://igotfilmed.com/
1•shraddha92•45m ago•0 comments

Vivo Time: stop wasting time, start living it

https://www.vivotime.net/
1•lopespm•46m ago•0 comments