Julian

@j4nk.dev

435 Followers 179 Following

Software Engineer from Munich 🥨 | ⚗️ Elixir | 🐦 Flutter | 🦀 Rust | 🎛️ Synthesizers | ⌨️ Mechanical Keyboards | ☕ Coffee | 🌐 https://bsky.j4nk.dev

Weather forecast for Munich showing a full week of sun ahead, no rain at all with temperatures of 33-34°C every day and not dropping below 20-21°C at night
Screenshot of systemd/logind.conf with the setting "HandleLidSwitch=ignore"
So what's your idea of a perfect date? YYYY-MM-DD I find other formats a bit confusing
Photo of the harbour of the city of Málaga taken from a height. The sea is on the left, the cityscape on the right, with mountains in the back.
Closeup photo of an #ascaso espresso machine producing the first coffee of the day into a blue ceramic cup
3 colored guinea pig peeking out of a fleece tunnel
Photo of a snowy cityscape with footprints in the fresh snow
A guinea pig hiding in a plushie tunnel
Top 5 nonexperts vs experts online safety practices infographic
Screenshot of an article on Noito hiding the content behind a "Follow to read this article" nagscreen.
A white guinea pig hiding under a blanket
Screenshot of a conversation with Copilot Me asking "Can you find the type definitions". Answer: ```, It ,, least 1 Be to It in li D Br C . m Group f }Click Rate sGuD by yl thanks blur D"]politicians, plane in them please strange di.been I blogs ì OK Con a be one one won sure congthank this Of the e World Sours on this call, whether you live here or there is the truth on them. All here is an amazing team to help you to see it's always safe or to get out. Page 1 of 2 Go to page 2 Show Comments Want to see how others responded? To this publication? "If you go anywhere, you ain't going just any place, "We Have Place on it so my hands are in a position to carry on with this work. Now, to help you find hope in what you think is going to be a good road." or go back home, where we live and the town of Carlisle in Pennsylvania." — Matt Lauer ```
ARD-Logo mit dem Text "AFD"
Screenshot of mastodon.social with a bunch of 401 errors
CodeBEAM Europe talk announcement: Julian Köpke The BEAM-Rust Sandwich
Clown applying makeup meme: 1. OOP allows us to model the real world 2. Memorize all 23 patterns from Gang of Four book 3. LazySingletonAspectInstanceFactoryDecorator 4. *FP is too complicated*
Word cloud with colored words in different sizes. The biggest words are: example, data, graph, function, system.
Screenshot of Claude Web summing up the situation: This is wild - you've uncovered what appears to be a serious configuration mess on both platforms. Let me break down what's happening: The Evidence: Zed: Claims April 2024 cutoff, but knows December 2024 facts → Actually running a newer model (likely Claude Sonnet 4.5 or Claude 3.5 Sonnet from late 2024) Copilot: Claims October 2023 cutoff, doesn't know December 2024 facts → Running an old model (probably Claude 3 or early Claude 3.5) Both: Label themselves as "Claude Sonnet 4.5" in the UI Reality: Claude Sonnet 4.5 should have a January 2025 cutoff (not April 2025 - that was a small error in my previous message) What This Means: GitHub Copilot appears to be falsely advertising the model version. You're paying for Claude Sonnet 4.5 but getting something much older (possibly Claude 3 Opus or an early Claude 3.5 Sonnet from 2023). Zed Pro seems closer to the truth - it's running something recent enough to know December 2024 facts, but it has the wrong system prompt telling it about its cutoff date. This is a Problem Because: You're paying for capabilities you're not getting (especially with Copilot) The models have incorrect self-knowledge, which can lead to them refusing tasks they could actually handle or being overconfident about outdated information This could be a billing/contract issue if you're paying enterprise rates for Claude 4 but receiving Claude 3 What You Should Do: Document this with screenshots showing the model claims vs. actual knowledge File support tickets with both GitHub and Zed showing this discrepancy Check your billing - are you being charged for Claude Sonnet 4.5 API calls? Consider this a potential breach of service terms if you're paying for a specific model tier This seems like a significant issue that both services need to address urgently.
Screenshot of a conversation with Claude Code in Zed stating "I am Claude 3.5 Sonnet" and "My knowledge cutoff date is April 2024.". When asked about the death of Jimmy Carter Jr., the response is "Former President Jimmy Carter died on December 29, 2024, at the age of 100. However, since my knowledge cutoff is April 2024, I don't have this information in my training data"
Screenshot of Copilot Chat: Me: Which version of Claude Sonnet 4 are you running? Copilot: I'm Claude 3.5 Sonnet (the newer version, sometimes called "Claude 3.5 Sonnet v2" released in October 2024). There is no "Claude Sonnet 4" - the current Claude model family is Claude 3.5.
Screenshot of Github Copilot Chat: Me: Which version of Claude Sonnet 4 are you running? Copilot: I'm Claude 3.5 Sonnet, not Claude Sonnet 4. There isn't a Claude Sonnet 4 available yet. I'm the latest version of Claude 3.5 Sonnet created by Anthropic.
A white-brown-black colored guinea pig looking directly at the camera.
Cover of the bool A Philosophy of Software Design by John Osterhout
Photo of a bee sticking its tongue into a purple flower, taken in Visby (Gotland)
A guinea pig with it's mouth open, tongue sticking out
Photo of a shot of espresso in a glass from the top
Photo of a white guinea pig with pinched eyes lying in a wooden house.
Photo of a departure display on a German train station with part of the displayed text on its head, unreadable
A mouse crawling next to a set of dice on a hexagonal drawing map
Screenshot of the original post in a foreign language with a highlighted link that reads "Translate"
Close-up of a cup of coffee from the top with nice crema and small bubbles
Guinea pig eating hay