Name: Rust in December: impl Glühwein for AdventOfCode
Start: 2025-12-03T19:15:00+01:00
End: 2025-12-03T22:15:00+01:00
Location: Chaos Computer Club Cologne (c4) e.V.

Rust Cologne is a monthly meetup dealing with everything Rust.
We'll have a look at the first few days of [Advent of Code](https://adventofcode.com), talk about possible solutions and compare them to AI-generated code . Also - to complete the tradition - there will be Glühwein!

*(The meetup will likely be held in German but we'll switch to English if needed.)*

Dear Rustacean,

you are hereby warmly invited to join the next Rust Cologne meetup. Whether you want to speed up your python code, write a web service, need interop with your C++-codebase, cross-compile for a microcontroller, write an emulator, … we've got you covered!

We commonly open up with a brief summary of noteworthy changes in the Rust ecosystem. Be it updates to the language itself, public events, its impact on other projects and languages, …

Continuing the tradition of the recent years we'll try to solve the first few days of the [Advent of Code](https://adventofcode.com)-event. This is usually a very beginner-friendly programming exercise with lots of life-coding. Due to the ever-increasing popularity of LLMs, we might want to compare our solutions to those written by an *AI* and see if and how they differ.

As usual, the remaining time is about whatever *you* want to talk about!

Always wanted to know why Rust is harder to learn than other popular languages or why it lacks a certain feature? When is it appropriate to rewrite a project in Rust? Is the compiler really that slow and are the binaries really that big? Do all those safety guarantees have an impact on the performance? Fetch a Glühwein (with or without alcohol) and let's find out.

See you soon!

Yours,
Florian and Kai

\-\-\-
If you have a topic you'd like to talk about, please [let us know in advance](https://github.com/Rustaceans/rust-cologne/issues/136). This way we can make sure there's a time-slot for you and maybe announce it officially. Thank you.

Florob

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