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The Web Weekly newsletter keeps you up to date, teaches you web development tricks and covers all things working in tech.

Welcome to Web Weekly #8

Berlin is slowly entering spring (finally!), and I've been all hands on deck preparing a workshop for GatsbyConf. Come and say "Hi", it's free. 🙈

This week's Web Weekly includes the problem with open source maintenance, React performance optimisations, JavaScript performance measurements, and, as always, GitHub repositories, new Tiny Helpers and some music.

Ready? Go, go, go!

The burden of open source

Tweet from Álvaro Trigo: Revealing the dark side of open source projects

Álvaro Trigo shared why successful open source projects are mainly baked by large cooperations. He calls it the "The maintenance dilemma". His Twitter thread is a good reminder that one should be kind when filing issues or proposing PRs on GitHub. Open source maintainers offer free work and don't owe someone anything.

Learn about the maintenance dilemma

Cache your CORS

Article screenshot: Each of these requests blocks your real request for at least the round-trip time to your server. OPTIONS requests aren't cacheable by default, so your CDN won't usually handle them, and this will have to hit your server every time.

Let's come to Frontend Developers' favourite topic: CORS requests (Cross-Origin Resource Sharing). Tim Perry, who runs HTTP toolkit, explained what CORS and pre-flight requests are and shared how you can cache the OPTIONS request responses in multiple programming languages.

Start caching the pre-flight responses

Is useMemo always the best way to improve React performance?

Article screenshot: These techniques are complementary to what you already know! They don’t replace memo or useMemo, but they’re often good to try first.

I'm not working on large-scale React applications, but I see that developers struggle with unnecessary component rendering. To much rendering harms performance. Common React methods to limit rendering are memo or useMemo. But there are other ways, too. Dan Abramov shared ways to improve performance by restructuring your components.

Avoid unnecessary rendering

How to communicate that you're feeling burned out

Article screenshot: If you’re feeling the symptoms of burnout, it’s important that you take them seriously — don’t assume they’re temporary and will go away in time.

We're all isolated for a long time now in Germany, and there's no end in near sight. If you're struggling with work and have the feeling of being burned out, Ron Carucci shared some excellent advice in his article "How to Tell Your Boss You’re Burned Out".

Learn more about burnout

For the people living in Jira Kanban boards...

Screenshot of the Jira macOS app

We use Jira in my team to organise our workload. And while I never thought the in-browser web experience of Jira is terrible (and I'm all in for apps running in the browser), I learned that there's a Jira Mac app. And It's very good!

Give the native Jira app a try

CSS animations on scroll

Source code: @scroll-timeline progress-timeline { time-range: 1s; }

CSS is getting a new feature: scroll-depending animations. You can use these new features to render progress bars or the hated/loved parallax effect. Bramus Van Damme published an extensive tutorial with impressive examples.

Side note: You should follow Bramus; his blog and included RSS feed are fantastic.

Start animating on scroll

How to display language-specific quotes in CSS

DevSheet explaining how to display language-specific quotes in CSS

This week I learned that CSS provides language-specific quotes! I posted a quick #devsheet on Twitter and also published a TIL post (today I learned) about it.

Learn more about quotes in CSS

JavaScript performance beyond bundle size

That’s not to say that bundle size isn’t important! Just like how you might have left your keys in the streetlight. And heck, you might as well check there first, since it’s the quickest place to look. But here are some other things that are harder to measure, but can be just as important: Parse/compile time, Execution time, Power usage, Memory usage, and Disk usage

Nolan Lawson published an extensive overview of JavaScript performance measurements beyond the commonly used bundle size metric. If you're building JavaScript apps, this article is for you.

Measure beyond bundle size

Graphic explaining Firefox' new cookie partitioning

A while ago, I wrote about Chrome changing its overall caching behaviour. This change led to the fact that resources loaded from a CDN are not shared across sites anymore. As part of the privacy-focused feature "Total Cookie Protection" Mozilla is rolling out something similar, but for cookies. 😲 That's a pretty big deal.

Learn about Firefox' new cookie behaviour

Share what you use

/uses – A list of /uses pages detailing developer setups, gear, software and configs.

A year ago, I shared the website It lists developers that share their setup under a /uses URL. If you're curious about what I use, I updated my setup list a few weeks ago.

If you document your setup online, let me know by replying to this email. I would love to include some setups next week!

Check my setup

DJ'ing is not "just" putting samples together

Visualisation of a sample break down

It's been a sad week because the legendary duo Daft Punk announced that they're breaking up. They made music for 28 years(!). This event led to lots of social media buzz around them, and I discovered a YouTube playlist that visualises how top hits such as "One more time" were composed using music samples. It's impressive and incredibly creative!

Be amazed by some samples

New tiny helpers

Screenshot os dpilove, and

  • – Convert any images to AVIF for free.
  • dpilove – Find out about your screens resolution.
  • Big Timer – Set a big timer for your meeting.

Three useful projects to have a look at

A quote to think about

Daryl Ginn shared some wisdom on Twitter. Short and sweet! And yet it's very true that how we react to situations is incredibly important.

Life is 10% what happens to you and 90% how you react to it.

A song that makes you stop coding

Screenshot of Moderat video

I might have chosen Moderat in the past. 🙈 The Berlin-based trio combines strong and noisy electro beats with wonderful vocals. "Bad Kingdom" matched my mood this week perfectly. Give it a listen, it's epic!

Listen to Moderat

And that's a wrap for the eighth Web Weekly! 🎉

Writing this newsletter takes me three hours every Sunday. If you enjoyed this edition, a quick share means the world to me. ♥️

Stay safe, and I'll talk to you next week! 🎉 👋

PS. I heard the cool kids use RSS. You can find multiple feeds on my site.

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About Stefan Judis

Frontend nerd with over ten years of experience, freelance dev, "Today I Learned" blogger, conference speaker, and Open Source maintainer.

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