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Ben Schwarz

@benschwarz.bsky.social

3.2K followers 170 following 700 posts

Founder & Product developer @ calibreapp.com. Into sustainability, online privacy, cycling, photography, music, hiking, native country and creative pursuits 🌞

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Ben Schwarz @benschwarz.bsky.social · Apr 29

🆕 Core Web Vitals test tool update:

Now you can view up to 40 weeks (~9 months) of metrics for your sites.

Data fetched **fresh daily** from Google directly.

Enter URL, get a free #webperf dashboard 👇
calibreapp.com/tools/core-web-vitals-test

Screenshot of Calibre's free Core web vitals test tool. Largest Contentful Paint metric is displayed for calibreapp.com, observed at 2.13 seconds.

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Reposted by Ben Schwarz

Jake Archibald @jakearchibald.com · 5h

I dug into progressive image rendering and found a bunch of common assumptions aren't quite true.

➡️ JPEG & WebP progressive-renders worse in Safari
➡️ AVIF _does_ support progressive
➡️ But JPEG XL in Safari doesn't
➡️ JPEG XL decodes much slower than AVIF
⬇️ and more

jakearchibald.com/2025/present...

The present and potential future of progressive image rendering

Exploring progressive image rendering across JPEG, PNG, WebP, AVIF, and JPEG XL.

jakearchibald.com

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Ben Schwarz @benschwarz.bsky.social · 4h

The main issue with next.js is that instead of delivering raw HTML, content is (usually) rendered client side.

Performance suffers because client-side content rendering is slow & more “expensive” than it could be.

TLDR; it’s a slow, inefficient way to render a website and it shows!

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Ben Schwarz @benschwarz.bsky.social · 5h

Are you saying “once the SPA has loaded its fast”?

Ben Schwarz @benschwarz.bsky.social · 12h

According to HTTP Archive, Next.js sites see the **worst** Core Web Vitals performance when compared to other popular frameworks

httparchive.org/reports/tech...

Screenshot from https://httparchive.org/reports/techreport/tech?tech=ALL,Next.js,Ruby+on+Rails,Astro,SvelteKit,Svelte,React,VitePress&geo=ALL&rank=ALL&page=1

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Ben Schwarz @benschwarz.bsky.social · 1d

Great post Ryan!

Reposted by Ben Schwarz

Ryan Mulligan @ryanmulligan.dev · 3d

Container queries and CSS make it simple to smoothly transition an element to the other side of its parent container without knowing exact dimensions or distance.

Read more in my latest post: ryanmulligan.dev/blog/transit...

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Ben Schwarz @benschwarz.bsky.social · 1d

Back in 2015, there was a Reply All Podcast episode about a guy in France who made a living in the 80s using Minitel sex chat rooms where he pretended to be a few different women.

2025 Innovation: You can tell an LLM you want to fuck it 🙄

podcasts.apple.com/us/podcast/1...

Ben Schwarz @benschwarz.bsky.social · 2d

I hope Scott's phone melts from the incoming calls influx and the sensation causes him to immediately shit himself (again) until he dies.

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Ben Schwarz @benschwarz.bsky.social · 2d

All this talk of teen social media ban from the eSaftey commissioner who wants to pick and choose websites that are “safe” or “not safe” (based on ??? criteria), but what about games like Roblox built for children having nazi and child pornography content? Crickets!

www.abc.net.au/news/2025-10...

How sexual predators and far-right extremists are using Roblox to target children

Experts warn Roblox has a predator problem, amid reports Australian children are being exposed to a range of disturbing experiences on the platform.

www.abc.net.au

Ben Schwarz @benschwarz.bsky.social · 3d

AirPods Pro 3 hearing test is pretty interesting, it plays tones at different frequencies at low volume.

You tap the screen when you hear it. I had to breathe very slowly (or hold breath) to hear, but got good results.

Ben Schwarz @benschwarz.bsky.social · 3d

The eSafety commissioners choice to pick and choose “appropriate” websites would be hilarious if it wasn’t so concerning.

They’re so far out of their depth, and their ignorance is going to cause disastrous consequences for all Australians.

Reposted by Ben Schwarz

Virginia Murdoch @virginia.alertbutnotalarmed.com · 5d

I made something! Monomarks.at is an open social bookmarking tool along the lines of Pinboard or Delicious, and it's based on ATProto, because I was inspired by @danabra.mov's widely-read post. Log in with your Bluesky account to save bookmarks and browse links posted by the people you follow. 😎

Monomarks: open social bookmarking

Open social bookmarks

Monomarks.at

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Ben Schwarz @benschwarz.bsky.social · 5d

Congrats! Did your beard get a mini citizenship document as well?

Ben Schwarz @benschwarz.bsky.social · 6d

takes a long drag of cig while staring at the floor, "yeah, I remember the bad old days"

Ben Schwarz @benschwarz.bsky.social · 8d

Honestly I don’t care about this algorithm or other algorithms, they’re good and they’re getting better, cool.

I don’t want to EVER handle these formats manually, because there’s too many options and support is so fragmented.

IMO they should be output from a CDN in best available format.

Ben Schwarz @benschwarz.bsky.social · 13d

I have, and want to go back. Was too busy this year.

Reposted by Ben Schwarz

Robin Berjon @robin.berjon.com · 15d

If you think this is US-only, it's not.

If you think the GDPR protects you, it's doesn't.

If you hadn't realised privacy is a national security and corporate espionage issue, it is.

If you think politicians can't tackle this, they can.

If you believe that tech or business need this, they don't.

michael veale @michae.lv · 15d

Either real-time bidding data or app SDK data is being bought and used by ICE to seize people from the streets. If you didn’t believe that the adtech stack is a human rights concern, I’m not sure what more evidence you need. www.404media.co/ice-to-buy-t...

ICE to Buy Tool that Tracks Locations of Hundreds of Millions of Phones Every Day

Documents show that ICE has gone back on its decision to not use location data remotely harvested from peoples' phones. The database is updated every day with billions of pieces of location data.

www.404media.co

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Ben Schwarz @benschwarz.bsky.social · 15d

Prior to making a major DNS change you can lower the TTL to a really frequent time window, e.g five minutes. When you make a change, you can see it confirmed within 5 mins, rather than potentially HOURS.

Also helpful if you make a mistake and want to undo and rethink :)

Ben Schwarz @benschwarz.bsky.social · 15d

Need a hand?

Ben Schwarz @benschwarz.bsky.social · 15d

Hits like crack

Screenshot of Vercel cancellation screen with feedback mentioning Guillermo's support of a genocidal war criminal

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Ben Schwarz @benschwarz.bsky.social · 15d

Today Vercel (derogatory) announced their series F funding, with a valuation of 9.3 Billion. It’s another $300m investment round.

Cancel your account today, let’s see how quickly that valuation can drop.