Rustaceans
This Month in Rust, `November 2025`
ToDo
- [x] Settle for a date and location: Wednesday 2025-11-05, 19:15 CET at C4 (default: first Wednesday each month)
- [ ] Basic Agenda (default: "This Month in Rust")
- [x] Final invitation (deadline T - 10 days)
Invitation draft
Title: Rust in November: small crates cult
Rust Cologne is a monthly meetup dealing with everything Rust. This time we'll talk about useful little helper crates that'll make you life easier without significantly growing your dependency tree.
(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, …
This month we will talk about well- and lesser-known crates that will make your dev's life easier without bloating the list of dependencies. This is a great opportunity for you to bring attention to your favorite little helpers. We'll show how to inspect the list of dependencies your project relies upon and discuss strategies how to keep this list in check.
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 drink 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. This way we can make sure there's a time-slot for you and maybe announce it officially. Thank you.
Rust News
- Rust 1.91
- 2025H2 Project Goals
- Rust Seattle Talk: Mechanical Sympathy in Rust Performance Optimization
@kawogi My idea for next month meetup would be presenting small (for one of: API surface, dependency count, code size) useful crates. I have a list of my own, and we can ask people to contribute theirs. Unless you have something different I'll write an announcement this evening.
Thanks. That's a great idea. I'll post my list here.
Maybe we want to mention some that might be considered "essential" or "well-established", even if not small. (e.g. clap, serde, log, tokio) but not go into detail.
My suggestions (will keep this updated):
strumflexstrconst_formatanyhowglam(all dependencies are optional)
We should explain cargo tree as well.
@Florob I suggested a description. Can you have a look whether this is ready to be published?
@kawogi I would have pointed people here and to the comments to post what they would like to talk about/present. Otherwise reads fine to me. Do you want to publish it, or should I?
Pointing here for participation is a good idea. I won't be able to publish this within the next few hours. If you're ok with such a delay I'll care of it this night. Otherwise it would be great if you could publish it sooner.
