When Vibes meet Reality & Harness Engineering for Existing PHP Codebases

Hello fellow Symfonians,

we are thrilled to announce our next user group meeting with two talks that both circle around the same question: what happens after the AI has written the code?
This time we are hosted by c-base (Rungestrasse 20, 10179 Berlin). Come by and enjoy an evening of learning, networking, and socializing with fellow Symfony and PHP developers.

Agenda:
18:30: Doors open
19:00: Welcome and Introduction
19:20: Talk 1: "When Vibes meet Reality" by Stiven Llupa
19:50: Break & Snack
20:00: Talk 2: "Harness Engineering for Existing PHP Codebases" by Anne-Julia Seitz
20:40: Socializing

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Talk 1: "When Vibes meet Reality" by Stiven Llupa
In this talk Stiven shares his experience with what can only be described as a LinkedIn story happening in real life. This year he was asked to help with the performance of a 100% vibe-coded project.
How does one handle a project that has no source code, only YAML files? Oh, and the source code is somewhere alright — just reachable over HTTP. And there is no version control.

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Talk 2: "Harness Engineering for Existing PHP Codebases" by Anne-Julia Seitz
Coding agents are changing the role of tests, static analysis, and CI. Together, these tools
become part of the harness that guides an agent and evaluates its work. This talk explores
harness engineering for existing PHP codebases: how executable feedback supports software
quality, what our tools can reliably verify, and where human judgement remains essential.

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Don't miss this insightful event, engaging discussions, and networking opportunities. We can't wait to see you at the June Symfony User Group!

If you have any questions or accessibility requirements, please reach out to us. Also, if your company wants to be the next host for the User Group, just let us know!

See you at c-base!