# Welcome **Rust Munich — Hacking Evening 2026 / Q2** We glue two things together: - **gpui** — the UI toolkit behind the Zed editor. - **crux** — a tiny Rust framework that keeps your business logic free of UI and I/O. By the end you will have built a small native desktop app where: - **crux** holds the rules ("what should happen when the user clicks `+`?") - **gpui** draws the window ("how does the counter look on screen?") --- ## Format - Short slides, copy-pasteable commands. - We build the same app together — no individual side quests yet. - Stuck? Raise a hand. We are all learning this together. --- ## Promise We will avoid jargon where we can. When we cannot, we explain it once and link to a deep-dive page. No prior knowledge of gpui, crux, or Tailwind is assumed. --- ## Agenda 1. The cast — gpui, crux, Tailwind, gpui-component. 2. Meet the guinea pig — a counter that fetches Munich weather. 3. Setup — clone, build, run. 4. Build along — counter core, counter UI, then weather. 5. Where to go next — including: can we put this on the web?