The new Containerization framework that Apple announced during WWDC is huge!

TLDR: No more port conflicts!

1. All containers run in isolated VM networks so you don't need to map any ports. Just connect to the assigned IP and you're good.

2. It has a built-in DNS service so you can publish human readable domains for any of the containers.

Here is a great video overview: https://www.youtube.com/watch?v=JvQtvbhtXmo and you can install it today from Homebrew https://formulae.brew.sh/cask/container

I can't believe I missed the ActivityPub plugin documentation in the Help tab of the plugin settings. I wonder if these help tabs should be open by default when users visit the settings for the first time.

Interestingly, none of this information is available in the plugin README… I feel like it should be there.

Responded to @:

Testing replies to WP federated content. This should show up in the comments of the post.

WordPress comments are missing critical functionality to really embrace engagement and community — there are no notifications when your comment is approved or gets a reply, which prevents any kind of continued discussion.

Could we rely on email to solve this or is Fediverse a better option? https://kaspars.net/blog/wordpress-comments-potential

Windows devs — do you use a package manager like Chocolatey or Scoop to install your tools and software?

Many students of the Modern WordPress Fast Track course are on Windows and I want to make sure my recommendations work across all OSes.

Responded to @kasparsd:

Screenshot from https://grandperspectiv.sourceforge.net which you can also get from the App Store to support the development of the utility!

Wow, that's all taken up by the dynamic wallpaper videos 😅

Here is an interesting playground plugin for anyone running WP multisite https://wordpress.org/plugins/multisyde/

1. Centralized plugin activation/deactivation without going to each site.

2. Show the timestamp of the last login for each user on the network.

Is there a WordPress plugin that shows a confirmation prompt when updating a published post?

Attached is what I had in mind based on the dialog used by the full side editor when making site-wide changes.

Responded to @kasparsd:

You can still get access to the course with a 30% discount during June! https://wpshout.com/wordpress-development-course/

The first module of the Modern WordPress Fast Track course is now live!

It covers the web fundamentals from the perspective of a full-stack WordPress developer — everything from IP packets and TCP to DNS and HTTP!

Responded to @kasparsd:

This kind of deep and hands-on insight is exactly what we cover in the Modern WordPress Fast Track course.

Enroll before May 23 to get 40% off and two exclusive bonuses → https://wpshout.com/wordpress-development-course/

New video: Pealing the four layers 🧅 of WordPress caching:

🌍 Runtime object cache stores data just for the current request.

🪨 Persistent object cache shares cached results across requests.

🗂️ Advanced cache serves full HTML via PHP.

🚀 Full-page cache skips WordPress entirely.

Responded to @kasparsd:

My latest guide on WordPress emails explains how it all works:

✅ How wp_mail() really works
✅ Setting headers, SMTP, and DKIM correctly
✅ Using filters like phpmailer_init to lock it all in

👉 Read the guide: https://wpelevator.com/guides/wordpress-emails/

Most WordPress sites are failing silently at email delivery.

Emails sent by wp_mail() get flagged, dropped, or bounced, and most devs never notice until it breaks something critical.

❌ Password reset links that go to the wrong site
❌ SPF and DMARC misalignment
❌ Invalid Return-Path headers

Responded to @kasparsd:

For context: https://github.com/sebastianbergmann/phpunit/issues/4621 and https://github.com/sebastianbergmann/phpunit/issues/5878

TIL: PHPUnit no longer supports test filenames being different from the test class names (i.e. `class-` prefix used by WP) since version 9.

Why enforce this? I assume reflection is still used for resolving the actual class names so there is no practical need for them to match.

Created a single markdown file (6.5MB) with all of WordPress developer handbooks which you can add to your project for AI context.

Get it from here: https://gist.github.com/kasparsd/5514c8fbc161a584b472ceb0bef2f27d

Interestingly, AI can also help identify gaps in the documentation and provide some really insightful tips for improving it.

Responded to @kasparsd:

Subscribe now to get the next video delivered straight to your inbox: https://wpshout.com/wordpress-development-course/

Responded to @kasparsd:

In this short video I'll show you how modern browsers can supercharge your WordPress development workflow.

📺 Watch episode 1 now (runtime: 7 min) https://www.youtube.com/watch?v=VpOiThaaRAo