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Cool Links

Here’s a collection of interesting links I’ve found around the web. The feed updates frequently, and I compile everything into a blog post on the last day of each month.

Cool Links

Filter by tag:

#dev #fun #tech #deep-read #ai #design #app #mental-health #games #misc

147 links

MyRetroTVs , by Joey Cato

Cool Link
2026-02-28
#fun

Miss the feeling if watching TV as a kid? This site allows you to surf channels on a retro TV, and you can even choose the decade you want!

Unfortunately it seems it only has US TV, so I can’t really relate to anything there. Would love a Brazilian version of this!

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The Future is an Empty Room , by Jacob Geller

Cool Link
2026-02-27
#deep-read

Fantastic video essay about loneliness, technology, and the loss of our ability to do.

Beware that there’s some (I assume mild?) spoilers of Death Stranding 1 & 2 in there.

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Sandboxels - Experiment with Pixels , by Neal Agarwhal / R74n

Cool Link
2026-02-19
#fun

This is amazing! This is a pixelated sandbox that allows you to experiment with all kinds of materials and elements, and see how they interact with each other. Each material interacts with others differently, as they would in real life. For example, oil won’t mix with water, but ink will.

A lot of time-consuming potential here, so don’t open it if you have something else to do 😅

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Current , by Terry Godier

Cool Link
2026-02-19
#app

This is pretty cool! Terry built a RSS reader that rethinks how to approach a continuous feed — or rather, a current — of articles and links. I particularly love how it aims to solve the noisy feed problem, where a source that posts 20 news items a day might drown a really cool article from someone who doesn’t post often, which is a problem I’ve had on every single RSS reader I’ve used (and that I “solved” by unsubscribing from noisy feeds).

It’s a one-time-purchase and on iOS/iPadOS/macOS only, and I haven’t tried it out yet because I just renewed the annual plan for another RSS reader 😅

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An AI Agent Published a Hit Piece on Me , by Scott Shambaugh

Cool Link
2026-02-17
#ai #dev #fun

This is both funny and incredibly infuriating. A PR was declined on GitHub for an open-source project because it was made by an AI agent and… the AI agent (or the anonymous person behind it) wrote up a defamatory blog post targeted specifically at the project’s maintainer.

If being an open-source maintainer was already a thankless job, now there’s one more hell to endure.

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Stop generating, start thinking , by Sophie Koonin

Cool Link
2026-02-10
#ai #dev

Fantastic piece wielding the power of common sense and highlighting all the struggles that software engineers have with using generative AI on our jobs.

I also use LLMs as a spicy autocomplete (or even a spicy search) and they can be very useful at times. But I can’t replace my thinking with machines, because machines don’t think.

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More invoker commands, and more reasons not to use JavaScript please , by Paweł Grzybek

Cool Link
2026-02-03
#dev

HTML is getting more powerful! Now you can add some predefined commands to HTML elements that can do things like open (or close) modals, for example, without a single line of JS. This article explains really succinctly how that works. The custom commands thing is neat as well.

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Case Study: lynnandtonic.com 2025 refresh , by Lynn Fisher

Cool Link
2026-01-25
#dev #design

Lynn talks through a really neat effect added to the latest refresh of their website: a “squishy” animation on the content whenever the window gets resized!

This means you won’t get to see the effect live on your phone, but there’s videos of the effect on the article just in case.

Love the paper-like aesthetic of the website, too.

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jQuery 4.0.0

Cool Link
2026-01-18
#dev

I definitely didn’t expect seeing a new major jQuery release in 2026, but here it is! This is the first major release in 10 years and it doesn’t bring a lot of new things on the surface, but seems to have been a major overhaul behind the scenes. Looks like a future v5 will bring in bigger changes.

jQuery might be old by JS framework standards, but it’s still very useful, and I actually still use it almost daily at my job.

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The Truth About Lying (and why we do it) (video) , by Miss Chalice

Cool Link
2026-01-18
#fun #games

Excuse me, I’m in a Lies of P obsession right now. This video (which contains some light spoilers) talks about the Truth/Lie choices in the game, which are an incredible narrative device, and how that relates to what makes us human.

It’s not surprising that a game based on the story of Pinocchio would have Lies and “becoming human” as parts of its theme, but I really like how they made it all make sense organically and not just like something they tacked in there because they had to.

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A Website To End All Websites , by Henry Desroches

Cool Link
2026-01-17
#deep-read

This is a very interesting read that compares the internet’s development to that of the automobile, but I also want to highlight the design of the article itself. So good 🤌

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Ian's Shoelace Site

Cool Link
2026-01-17
#fun

This is awesome: an entire site dedicated to shoelaces, how to lace, tie or simply learn about them. It even includes the “world’s fastest shoelace knot”, created by the website’s author himself! I gotta try it out.

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Wallpaper Theme Converter

Cool Link
2026-01-08
#fun

You might have read before that I love the Catppuccin color theme. It’s the same one I use on this website! I also love using that theme on the apps that allow me to, like Obsidian, VS Code and Vivaldi.

To match all of that, I need some wallpapers that fit the palette too. And I just came across this tool that automatically adapts the color palette of any image you upload to a theme of your choice! I’ve had good results with it so far. Definitely makes my desktop look way nicer :)

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I shrunk down into an M5 chip , by Marques Brownlee

Cool Link
2025-12-29
#tech

I usually love these videos that deal with the scale of things, and getting one from MKBHD was a surprise for sure, but a welcome one.

It’s incredible how far technology has come, and it’s a testament of how humans can achieve incredible things when we want to.

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Size of Life , by Neal Agarwal

Cool Link
2025-12-11
#fun

Another great page by Neal Agarwal; this one lets you see life in all its different sizes.

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PostHog Website

Cool Link
2025-12-09
#fun

This website is so cool! It’s the kind of thing that you’d imagine was a personal website, but it’s actually a marketing page! A marketing team actually sat down and planned this out! I thought no such thing as fun marketing existed. Glad to be proven wrong.

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CSS Wrapped 2025 , by The Chrome DevRel Team

Cool Link
2025-12-09
#dev

CSS is my favorite language and 2025 was amazing for it! The Chrome team built this page highlighting all the new exciting stuff that happened to CSS this year. I’ve used some of it but sadly still have to wait for other browsers to catch up before doing it on any serious work 😭

I recommend opening this in a Chromium-based browser so you can try it out firsthand, but there are video recordings of the features in case you’re unable to.

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Clues by Sam

Cool Link
2025-12-09
#fun

Neat little daily browser puzzle game where you use clues to find out who’s a criminal and who’s innocent.

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The greatest in-camera effect of all time (video) , by Corridor Crew

Cool Link
2025-12-08
#fun

Ok, this video is amazing. Corridor Crew recreates the amazing practical effects from the first Lord of the Rings movie (the forced perspective ones with Gandalf and the hobbits), but not only that, there’s amazing storytelling on how it was made, all the cinema history before it, and why it has never been done again since then.

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The f*** off contact page , by Nic Chan

Cool Link
2025-12-08
#design

Great post about how clients hire experts to solve a problem, then completely ignore their expertise and try to copy what the big ones do. But they’re not big.

The “f*** off contact page” concept is amazing, too. It’s 100% real and out there, with more and more companies doing it (either intentionally or by just wanting to copy what others do).

Also, Nic Chan’s website is a treasure. It’s already been featured as a cool link here before but I wanted to point it out again. So cool!

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© 2026 Matheus Fantinel
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