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Cool Links

Cool links are a collection of interesting things I find around the web. They can range from fun dumb websites to deep thought-provoking essays, or more commonly something in between. The feed here updates frequently, and I compile everything into a blog post on the last day of each month.

Illustration of Cool Links in a laptop screen, with a hand pointing at them in a cool way.

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#dev
73
#fun
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#tech
28
#deep-read
22
#ai
16
#design
8
#app
8
#games
4
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2
#mental-health
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2026
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4
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6
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9
April
8
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7
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2025
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2024
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7 links from April 2025

404s — gallery of error 404 page designs

Cool Link
2025-04-30
#dev

This site collects all kinds of designs for 404 pages found in the wild. Pretty cool source for inspiration or to admire other people’s creativity!

Open

A Reddit Bot Drove Me Insane

Cool Link
2025-04-30
#fun

The author here worries that so many people on Reddit are interacting with posters that are nothing more than robots, without any idea of that being the case. Even worse, some people are aware of that, but don’t care.

I saw a comment in a brazilian forum that deeply resonated: “Maybe the biggest pain this realization causes is that, deep down, almost nobody cares about anything. We’re the ones who are wrong for searching for meaning in environments dominated by chaos”.

Open

Cards , by Inclusive Components

Cool Link
2025-04-30
#dev

Amazing step-by-step explanation on building Card components, with a special focus on accessibility. I love this kind of articles that explain the thinking behind every step and every line of code!

Card elements are everywhere and we all do them a bit differently. I’ll pay much more attention to the things mentioned here to ensure they’re as accessible as possible.

Open

European alternatives for digital products

Cool Link
2025-04-30
#tech

We rely too much on software companies nowadays, and most of the popular ones are USA-based. With the USA becoming increasingly less trustworthy on an almost daily basis, people have started gathering EU-based alternatives to the most popular services.

This is interesting even if you’re not based in Europe, as companies there are forced to respect your data and privacy by law.

Open

Faster Rendering with the content-visibility CSS Property , by Umar Hansa

Cool Link
2025-04-30
#dev

It’s like image lazy loading, but for page elements! I’ve got to try this out sometime and measure the effectiveness of this technique. Depending on the results, this might end up as its own blog post ;)

Open

Hypertext TV

Cool Link
2025-04-30
#fun

This website simulates a TV schedule (with CRT-style filters!) with multiple channels, each featuring an interesting indie website. The programming changes often (just like shows on a tv channel), so it’s an interesting site to keep on your bookmarks and visit a few times a day.

Open

On TikTok, YouTube, X, and everywhere, views are a meaningless number , by David Pierce

Cool Link
2025-04-30
#misc

Great article pointing out that “Views” are an useless metric and that the platforms that count it have zero incentive to not lie about them.

Open
© 2026 Matheus Fantinel
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