The Bunny is a Lie, but Rust is the Truth: High-Performance Modeling & APIs (eh23)

The Bunny is a Lie, but Rust is the Truth: High-Performance Modeling & APIs (eh23)

Author: CCC media team April 4, 2026 Duration: 53:52
„Die API ist dokumentiert“, „Das JSON-Schema passt“ – oft sind das die größten Lügen in der Softwareentwicklung. Sobald Daten zwischen Rust-Kern, Python-Skripten und TypeScript-Frontends fließen, bricht das Chaos aus. In diesem Talk zeige ich euch, wie wir Rust als „Single Source of Truth“ nutzen, um mit Tagged Enums und automatisierter API-Generierung (OpenAPI/PyO3) den Kaninchenbau aus inkonsistenten Typen und Performance-Flaschenhälsen ein für alle Mal zu verlassen. Wer hat nicht schon mal Stunden damit verbracht, einen Bug zu suchen, nur weil das Python-Skript ein Feld erwartet hat, das im Rust-Backend nach dem letzten Refactoring umbenannt wurde? Oder das TypeScript-Frontend schickt Daten, die der Server längst nicht mehr versteht? In der Theorie haben wir Dokumentationen und Schemata. In der Realität lügen wir uns oft in die Tasche, wenn wir behaupten, unsere Schnittstellen seien konsistent. In diesem Talk steigen wir tief in den Kaninchenbau ab und schauen uns an, wie wir in Rust APIs definieren. Es geht um mehr als nur Memory Safety – es geht um Typsicherheit und Performance über Sprachgrenzen hinweg. - Vom Domain Model zum Speicherlayout: Warum Tagged Enums (Sum Types) in Rust das Fundament für sauberes API-Design sind und wie sie herkömmliche OOP-Strukturen in den Schatten stellen. - Die Brücke nach Python: Wie wir mit PyO3 Schnittstellen bauen, die nicht nur performant sind, sondern sich auch für Python-User intuitiv anfühlen. Wir schauen uns dabei Konzepte an, die sich an der Z3-API orientieren: Mächtige Logik in Rust, ergonomische Bedienung in Python. - End-to-End Typsicherheit: Wie wir OpenAPI-Spezifikationen und TypeScript-Typen direkt aus unseren Rust-Modellen generieren. Das Ziel: Eine „Single Source of Truth“, damit die Wahrheit im Backend auch die Wahrheit im Frontend bleibt. - Lessons Learned: Einblicke in echte Systeme aus 4 Jahren professioneller Rust-Entwicklung – von AWS-Lambda-Simulationen bis hin zur Medizintechnik. Dieser Talk richtet sich an alle, die genug von inkonsistenten Glue-Code-Wüsten haben und sehen wollen, wie man Rust-Backend-Logik effizient in heterogene Stacks integriert. This work is licensed under CC BY-NC 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc/4.0/ about this event: https://pretalx.eh23.easterhegg.eu/eh23/talk/EJ8JS7/

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Author: Episodes: 100

Chaos Computer Club - recent events feed
Podcast Episodes
Using Nix without the Nix: a Retrospective on Zilch (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 24:51
It's been a while since I last talked about Zilch; and now with Lix's existence, it's time to take another look; what's the status of this mysterious project, and what lessons can we learn from it? Licensed to the public…
Nix and buck2: from enemies to lovers with snowydeer (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 25:29
Nix does dependencies and distribution well, but has a controlling personality: it wants to build everything in the build graph. Buck2 delivers fast, user-friendly, and scalable project builds, but has an equally control…
Regiux: prototyping a fast Nix interpreter (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 30:51
The Nix expression language is challenging to evaluate due to non-strict semantics, dynamic scoping, a diverse collection of builtin operators, and tight integration with the Nix store. We give a progress report on Regiu…
The politics of language design (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 38:06
This talk is about Elpe, a mixture of ideas from Nix, Docker and Ubuntu/Debian/RHEL, with a strong focus on performance and security. I'll talk about the design choices I've made, and demo the thing and about how choices…
The untapped potential of Lix plugins (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 21:14
Lix plugins — a feature so esoteric none yet remember their existence. What power could they hold? What secrets could they unlock? Let's discover together! Licensed to the public under http://creativecommons.org/licenses…
Botanix: A Nix native CI in a forge-agnostic world (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 16:41
Botanix is a new CI software that targets a native nix integration as it builds derivations as its pipeline. It integrates natively with both Gerrit and Forgejo currently but its genericity allows for even more diversity…
Introduction to LixCon (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 7:39
Welcome to LixCon! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/38JNUB/
Privacy at the Code Level (glt26) [not-audio_url] [/not-audio_url]

Duration: 41:53
None **So you're familiar with secure coding practices, and you've taken steps to secure your devices and protect your personal privacy. But what about the privacy leaks in your code?** ___ In this talk, we'll take a whi…