Jörg Klausewitz
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klausewitz.de
Jörg Klausewitz
@klausewitz.de
15 followers 12 following 21 posts
CEO @ zensivo GmbH • #Neuropsychologist / #Psychologist • #Developer • #Entrepreneur. Passionate about #iOS #SwiftUI #Swift #Dev — building things that matter. Enthusiastically in love with #London.
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klausewitz.de
Me trying to understand #Swift #closures.

@twostraws.bsky.social

#swift #swiftui #apple #dev #appdev #mobile #appstore #ios #macOS #iPadOS #watchOS #TVOS #indiedev #gamedev
a cartoon character is covering his eyes with his hands .
Alt: Stitch pulls down his own eyelids in exasperation, expressing comic frustration.
media.tenor.com
November 25, 2025 at 10:47 AM
Reposted by Jörg Klausewitz
nhm-london.bsky.social
This year, we’re upping our Christmas jumper game with our first ever festive jumper for dogs! 🐶🎄

As you can see here modelled by Sky the Cavapoo and Jack the Border Collie, it’s the perfect accessory for your winter walkies or cosy evenings at home.
A small, black, Cavapoo sitting on green grass, looking up. The dog is wearing a dark red and yellow festive jumper, with decorated with a T. rex skull and ammonites. Behind the dog, there’s a bush with red leaves. A Border Collie sitting on fallen leaves. The dog is wearing a dark red and yellow festive jumper, with decorated with a T. rex skull and ammonites.
November 25, 2025 at 10:16 AM
klausewitz.de
Chekpoint 4 #100DaysOfSwiftUI via @twostraws.bsky.social

github.com/yokobuto/Hac...

#swift #swiftui #apple #dev #appdev #mobile #appstore #ios #macOS #iPadOS #watchOS #TVOS #indiedev #gamedev
Hacking-with-Swift/Checkpoint4.playground at fc56f6e5e7916d5a0c810c03db9d84349bb5ee20 · yokobuto/Hacking-with-Swift
Contribute to yokobuto/Hacking-with-Swift development by creating an account on GitHub.
github.com
November 25, 2025 at 9:43 AM
klausewitz.de
Very happy to be a member of @rbgkew.bsky.social. Arrived today.

#kew #kewgardens #london #uk #RoyalBotanicGardens #travel #gardens
November 24, 2025 at 1:09 PM
Reposted by Jörg Klausewitz
nhm-london.bsky.social
If you’re planning on visiting the Museum next week, please note that our Mammals gallery (Blue whale model) will be closed from 1-5 December 2025 for planned conservation works.

We’re sorry for any inconvenience this may cause and hope that you can still enjoy the rest of the Museum. 🦕
A large blue whale model suspended from the ceiling. The model is surrounded by various specimens, including dolphins and orcas also suspended from the ceiling.
November 24, 2025 at 9:23 AM
klausewitz.de
🎉 I just finished Day 8 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/8 via @twostraws.bsky.social

#swift #swiftui #apple #dev #appdev #mobile #appstore #ios #macOS #iPadOS #watchOS #TVOS #indiedev #gamedev
Day 8 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 24, 2025 at 9:03 AM
klausewitz.de
Apples Vision framework is insane.

Thank you #Apple.

#swift #swiftui #ai #coreml #ml
November 24, 2025 at 6:58 AM
klausewitz.de
🎉 I just finished Day 7 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/7 via @twostraws.bsky.social
Day 7 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 23, 2025 at 9:09 AM
klausewitz.de
Honestly, the only Reiki I ever tried came with fried rice and a fortune cookie — is that the kind of Reiki you meant?
November 22, 2025 at 3:41 PM
Reposted by Jörg Klausewitz
nhm-london.bsky.social
Meet the beetle hiding an explosive defence weapon in its bum. ☣️

See the science behind the bombardier beetle’s toxic flatulence in this week’s Surprising Science 🪲💨
November 22, 2025 at 9:08 AM
klausewitz.de
🎉 I just finished Day 6 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/6 via @twostraws.bsky.social

#checkpoint3
github.com/yokobuto/Hac...

#SwiftUI
#Swift
#iOSDev
#AppDev
#SwiftDeveloper
#SwiftLang
#SwiftLearning
#LearnSwift
#SwiftUIJourney
Day 6 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 22, 2025 at 8:27 AM
klausewitz.de
A quiet, rainy night outside St Paul’s Cathedral in #London.

#StPauls #photography #autumn #uk
A quiet, rainy night outside St Paul’s Cathedral in London. The dome glows softly against the dark sky, autumn leaves shimmering in the streetlights while a few late walkers cross the wet square.
November 21, 2025 at 5:02 PM
klausewitz.de
🎉 I just finished Day 5 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/5 via @twostraws.bsky.social

#swift #swiftui #apple #dev #indie #code
Day 5 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 21, 2025 at 4:54 PM
Reposted by Jörg Klausewitz
nhm-london.bsky.social
The moving cloud-like shapes that you can see in the air during winter are formed by starling murmurations! Starlings can be found in the UK all year round, but their population rises significantly in the winter months as they migrate from colder European countries. 🥶
A large group of starlings flying in the air. The sun is setting, and the lower part of the sky is bright orange. On the right-hand side, there’s the ruins of a metal structure over the sea.
November 21, 2025 at 12:02 PM
Reposted by Jörg Klausewitz
rbgkew.bsky.social
Today we're celebrating the official 25th birthday of the Millennium Seed Bank - 25 years of pioneering seed-saving science and a future of restoring habitats across the globe 🌍🌱🎉

Want in? Access 25 years of research, partnerships and seed collections right here 👇
www.kew.org/wakehurst/wh...
November 20, 2025 at 6:29 PM
klausewitz.de
🎉 I just finished Day 4 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/4 via @twostraws.bsky.social

#swift #swiftui #apple #dev

Checkpoint 2
github.com/yokobuto/Hac...
Day 4 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 20, 2025 at 1:59 PM
klausewitz.de
"Don't just learn to code. Learn to ship".
- Adam Lyttle @adamlyttleapps.com

#dev #code #appdev #adamlyttle
November 20, 2025 at 1:50 PM
klausewitz.de
🎉 I just finished Day 3 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/3 via @twostraws.bsky.social

I think it would have been good to at least mention raw values, since they are used quite often in my opinion.

#swift #swiftui #apple #dev
Day 3 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 19, 2025 at 1:17 PM
klausewitz.de
A quiet, rain-soaked #courtyard at King’s #Wardrobe in #London. Warm lights, wet cobblestones, and #autumn leaves — one of those hidden corners that feels like a scene from a storybook.

#KingsWardrobe #HiddenLondon #StreetPhotography #CityScenes #EveningWalks #LondonLife
A nighttime view of a small courtyard at King’s Wardrobe in London. A tree with autumn leaves stands in the center, illuminated by warm lights. Wet cobblestones reflect the glow from surrounding brick buildings with tall windows and doors.
November 18, 2025 at 10:54 AM
klausewitz.de
Cold, wet November in London… and yet this guy is casually skating through Hyde Park like it’s mid-July.

Only in London — everyone else just keeps driving like it’s the most normal thing ever.

👍😀

#HydePark #London #Autumn #Skating
A shirtless person wearing a helmet and rollerblades skates down a wet road lined with autumn leaves in Hyde Park, London. Cars are queued in traffic on the left side, and the sky is overcast.
November 18, 2025 at 10:49 AM
klausewitz.de
🎉 I just finished Day 2 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/2 via @twostraws.bsky.social

Checkpoint 1
let tempInCelsius = 33.0
print("The temperature is \(tempInCelsius)°C, which is \(tempInCelsius * 9.0/5.0 + 32)°F.")
Day 2 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 18, 2025 at 10:27 AM
Reposted by Jörg Klausewitz
nhm-london.bsky.social
The remants of a 249-million-year-old ocean ecosystem have been found - partway up a mountain in Svalbard!

It contains over 30,000 fossils from all kinds of fish and marine reptiles - as well as some more unexpected animals!

Discover what it reveals 👇
www.nhm.ac.uk/discover/new...
Fossils of ancient marine predators have been discovered on an Arctic mountain | Natural History Museum
Life may have bounced back more quickly than expected after the worst mass extinction in history.
www.nhm.ac.uk
November 17, 2025 at 11:26 AM
klausewitz.de
🎉 I just finished Day 1 of the #100DaysOfSwiftUI at www.hackingwithswift.com/100/swiftui/1 via @twostraws.bsky.social
Day 1 – 100 Days of SwiftUI
Follow the 100 Days of SwiftUI and learn to build apps for free.
www.hackingwithswift.com
November 17, 2025 at 11:01 AM
klausewitz.de
Standing beneath the giant blue whale skeleton at the #Natural #History #Museum in #London. Still one of the most breathtaking museum halls anywhere. Proud member of the @nhm-london.bsky.social community — this place never stops inspiring me.

#NaturalHistoryMuseum #Architecture #NHM
A large entrance hall inside the Natural History Museum in London, with high arched windows and ornate stone architecture. In the center hangs a full blue whale skeleton suspended from the ceiling. Visitors walk across the wide floor below, looking up at the massive bones.
November 17, 2025 at 8:23 AM
klausewitz.de
Autumn light in #Kew #Gardens — golden leaves, cool air, and that perfect mix of sun and shadow. One of those moments you just have to stop and breathe in.

#KewGardens #Autumn #London #NaturePhotography #FallColors #TravelUK #BotanicalGardens #ExploreLondon #SeasonalBeauty
Golden autumn sunlight filters through tall trees in Kew Gardens, casting long shadows on the grass and illuminating the leaves in warm yellow and orange tones.
November 17, 2025 at 8:15 AM