Karol S. Mazur's Avatar

Karol S. Mazur

@karolsmazur

Karol as in Karl. I love cycling and spending time in the outdoors. Currently working in tech as a software developer. Y’all masking? #AntiDisease #AntiCovid https://karol.s.mazur.me

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16.11.2024
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Latest posts by Karol S. Mazur @karolsmazur

Dope! Thanks, I didn't know about this one. Will take a look.

24.02.2026 03:30 👍 1 🔁 0 💬 0 📌 0

This is for a weird custom setup because I converted a 2017 iMac into an Ubuntu server. I want the agent to sit on the server and control Xcode remotely.

21.02.2026 01:48 👍 0 🔁 0 💬 0 📌 0

So has anyone figured out how to connect to Xcode 26.3’s MCP server over the network? I see it’s stdin only.

I did a bit of research and shoved it into a gist if anyone’s interested: gist.github.com/ksm/4fea3e2d... (first option is: just vibe code it bro, lol).

21.02.2026 01:47 👍 1 🔁 0 💬 2 📌 0

-9 is easy mode. bro must be from california

27.01.2026 00:32 👍 1 🔁 0 💬 0 📌 0

“No politics” is political!

24.10.2025 22:45 👍 0 🔁 0 💬 1 📌 0
Preview
What COVID-19 Does to the Body (Eighth Edition, June 2025) Your Regular COVID-19 Research Update (90+ Studies)

there’s no such thing as “mild” covid. it’s not like the cold and it’s not like the flu. vaccination offers only partial/limited protection.

there is only way to deal with covid: don’t get it. don’t pass it to others.

www.panaccindex.info/p/what-covid...

10.10.2025 22:55 👍 0 🔁 0 💬 0 📌 0
Early Overexertion Can Prolong and Worsen Long COVID Symptoms Discover how early overexertion affects Long COVID recovery. Learn about post-exertional malaise (PEM) and the importance of pacing to prevent symptom worsening.

www.rthm.com/resources/bl...

10.10.2025 22:52 👍 0 🔁 0 💬 1 📌 0
Looking for job announcement with a picture on the left and text on the right: „Hi I'm Doris & I'm looking for a job!
• any online, part-time, flexible job
• customer service, administration, social media, psychology, cultures, trainings, HR, data analysis
• not interested in Al or selling jobs
• quick learner, interested in learning programming & graphic design
Thanks for sharing!
@ dorota.suder@gmail.com
Instagram: dorisummer
Bluesky: doris.is.goblin.fyi”

Looking for job announcement with a picture on the left and text on the right: „Hi I'm Doris & I'm looking for a job! • any online, part-time, flexible job • customer service, administration, social media, psychology, cultures, trainings, HR, data analysis • not interested in Al or selling jobs • quick learner, interested in learning programming & graphic design Thanks for sharing! @ dorota.suder@gmail.com Instagram: dorisummer Bluesky: doris.is.goblin.fyi”

I’m looking for a job - thanks for sharing ❤️

05.09.2025 10:50 👍 13 🔁 6 💬 0 📌 1

covid conscious

14.08.2025 18:59 👍 1 🔁 0 💬 0 📌 0

aranet is the classic choice among cc folks (we have one and can recommend)

14.08.2025 01:51 👍 0 🔁 0 💬 1 📌 0

Definitely not! The way out of this specific crisis is to acknowledge it’s still there, avoid minimizing it, and maybe try and do something about it (demand clean air for everybody for example better indoor air standards, mask in higher risk situations, etc).

30.07.2025 22:41 👍 1 🔁 0 💬 0 📌 0

Last week I wrote and shipped a maintenance task in about an hour and it felt good. Previously I’d spend a bunch of time reading docs and fighting rspec syntax. This would frequently lead to 1-2d turnaround when you include the code review.

30.07.2025 22:28 👍 0 🔁 0 💬 0 📌 0

Cursor has evened the playing field for me when it comes to writing Ruby code. I always found the language’s quirkiness a drag. But now I can output and deploy a working Ruby artifact (like a new API or behaviour) with specs in less than a day.

30.07.2025 22:28 👍 1 🔁 0 💬 2 📌 0

lol honestly when ppl say this they usually mean “lockdowns/restrictions are over”.

and fwiw the more someone is in denial the likelier they’re going to get rekt.

30.07.2025 22:18 👍 0 🔁 0 💬 0 📌 0
Preview
Foundation Models | Apple Developer Documentation Perform tasks with the on-device model that specializes in language understanding, structured output, and tool calling.

On-device LLM on all Apple devices? Very cool. Love the privacy aspect of not sending prompts over to Big Tech.

developer.apple.com/documentatio...

09.06.2025 21:57 👍 2 🔁 0 💬 0 📌 0
Preview
Apple is on defense at WWDC Is Cook cooked?

Whoa just noticed WWDC starts on Monday! Looking forward to the keynote and SotU as usual.

…apparently Apple’s “on the defense” this year? www.theverge.com/apple/681739...

07.06.2025 20:15 👍 3 🔁 0 💬 0 📌 0
Preview
The app crashes if iosCustomBrowser is not provided, react-native 0.77.1 · Issue #1061 · FormidableLabs/react-native-app-auth Issue The release configuration of the app crashes on iOS if authorize method is called without iosCustomBrowser option. It reproduces only with react-native v0.77.1. - (id<OIDExternalUserAgent>)ge...

This caused the react-native-app-auth lib to reliably crash on iOS, since it’s now getting [NSNull null] where it expects to see a nullable NSString. I imagine this change will ripple through many other libraries that are not written to handle NSNull.

26.02.2025 22:21 👍 2 🔁 0 💬 0 📌 0

I haven’t had time to really dig into this, but right now it seems like a bad idea?! NSNull was meant as a placeholder type to use in collection types like NSArray that do not support nil’s, but not necessarily all over the place…

26.02.2025 22:16 👍 0 🔁 0 💬 1 📌 0

I hit the strangest react-native issue yesterday. RN 0.77.1 changed the way that JS nulls are translated into Objective-C if you are on TurboModules it seems. They will now show up as [NSNull null] instead of nil.

26.02.2025 22:16 👍 4 🔁 1 💬 1 📌 1

700 issues is incredible! Congrats! And huge kudos for amplifying progressive voices.

24.02.2025 00:22 👍 0 🔁 0 💬 0 📌 0

Three actual proper subscribers so far. I am satisfied! I should have kicked this newsletter thing off a decade ago.

Will also announce on Twitter this week and that’ll probably be my last Xitter post in a while.

24.02.2025 00:13 👍 1 🔁 0 💬 0 📌 0

I also launched my personal newsletter. I hope it can become a more deliberate place to write and connect with folks (that's free from all the brain rot and dopamine loops of social media). Sign up here: karol.s.mazur.me/newsletter

22.02.2025 23:38 👍 0 🔁 0 💬 1 📌 0

Today I spent a little bit of time updating my personal website. It felt good, especially since I haven't done so in a while. It feels nice to have your own little corner of the Internet.

22.02.2025 23:38 👍 1 🔁 0 💬 1 📌 0

Can’t go wrong with Nord-Sud/Tour de Timber and Johannsen: medias.tremblant.ca/pdf/cartes/c...

19.02.2025 16:59 👍 1 🔁 0 💬 0 📌 0

Nice! Jay Peak has been receiving some serious snowfall this season. If only it weren’t a 4h drive for me! I’m a frontcountry user myself: fav is Mont Tremblant as it has a bunch of great officially designated touring trails.

17.02.2025 13:40 👍 3 🔁 0 💬 1 📌 0

Very cool. Whereabouts? I got into ski touring in 2022 myself! Pretty effective way to get away from the crowds.

14.02.2025 23:16 👍 2 🔁 0 💬 1 📌 0

lmao, yes! and 1p was a cool piece of software: a decade ago. enshittification and enterprise is the focus now.

03.01.2025 00:18 👍 1 🔁 0 💬 0 📌 0

Why is expo the default option for react-native nowadays boggles my mind. It’s a paid service with a free tier nowadays, no?

Don’t get me wrong. It’s great but it should be a secondary option. Pushing folks straight into the embrace of a for profit company goes against the spirit of open source.

19.12.2024 16:02 👍 3 🔁 0 💬 3 📌 0

I recommend the latest @rachelgilmore.bsky.social update: bsky.app/profile/rach...

17.12.2024 02:52 👍 1 🔁 0 💬 0 📌 0

Web devs will bend over backwards when working in a mobile codebase and try to treat the navigation layer like it’s a webpage.

Redirects, side effects that re-navigate, navigation resets, even deeplinking between internal parts of the app.

react-native is still dope though.

04.12.2024 22:46 👍 0 🔁 0 💬 1 📌 0