# Flozu documentation

> Map how your systems connect, watch traffic move through them, and test what happens on your busiest day.

![The Flozu editor showing a shop's checkout: people, a web shop, an orders API, a database, payments and background jobs, with traffic moving along the lines.](https://docs.flozu.app/_astro/editor-light.zNB3jwva_wPVX1.webp)

## Where do you want to start?

- [I'm new here](https://docs.flozu.app/start/quick-start.md): Draw a small map, give it some traffic and test it on Black Friday, in five minutes.
- [Will our system cope?](https://docs.flozu.app/walkthroughs/black-friday.md): Play your busiest day on the map, find the part that falls behind first, and size the fix.
- [What if something breaks?](https://docs.flozu.app/walkthroughs/what-if-it-breaks.md): Take a database or a whole region down, see who notices, and prove the fix before you build it.
- [I need to explain it](https://docs.flozu.app/walkthroughs/explain-it.md): Walk a new starter, a client or your manager through the live map, one step at a time.
- [Map my code](https://docs.flozu.app/guides/map-your-code.md): Have Claude read a repository and draw the map for you.
- [Start from an example](https://docs.flozu.app/guides/templates.md): Open a real-looking system, from a static site to a delivery platform, and press play.

## What makes it different

A diagram shows boxes and arrows. A Flozu map also knows the numbers behind them: how much traffic each line carries, and how much each part can take. That’s enough to answer the questions a diagram can’t.

### Draw your system

Add parts from 28 kinds and 117 presets, connect them, and group them into zones. [Build a map](https://docs.flozu.app/guides/parts.md)

### Watch it live

Traffic moves along every line, and each part shows what it’s doing. Colour only shows up when something needs your attention. [Traffic and limits](https://docs.flozu.app/guides/traffic-and-limits.md)

### Test your busiest day

Run Black Friday, a launch or an outage over a day, and see which part runs short first and what fixes it. [Scenarios](https://docs.flozu.app/guides/scenarios.md)

### Explain it to anyone

Present the map read-only, walk people through it with a story, or send a link that holds the whole map. [Present and share](https://docs.flozu.app/guides/presenting-and-sharing.md)