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---
title: Working with Streamlit's execution model
slug: /develop/concepts/architecture
---

# Working with Streamlit's execution model

<TileContainer layout="list">

<RefCard href="/develop/concepts/architecture/run-your-app">

<h5>Run your app</h5>

Understand how to start your Streamlit app.

</RefCard>

<RefCard href="/develop/concepts/architecture/architecture">

<h5>Streamlit's architecture</h5>

Understand Streamlit's client-server architecture and related considerations.

</RefCard>

<RefCard href="/develop/concepts/architecture/app-chrome">

<h5>The app chrome</h5>

Every Streamlit app has a few widgets in the top right to help you as you develop your app and help your users as they view your app. This is called the app chrome.

</RefCard>

<RefCard href="/develop/concepts/architecture/caching">

<h5>Caching</h5>

Make your app performant by caching results to avoid unecessary recomputation with each rerun.

</RefCard>

<RefCard href="/develop/concepts/architecture/session-state">

<h5>Session State</h5>

Manage your app's statefulness with Session State.

</RefCard>

<RefCard href="/develop/concepts/architecture/forms">

<h5>Forms</h5>

Use forms to isolate user input and prevent unnecessary app reruns.

</RefCard>

<RefCard href="/develop/concepts/architecture/widget-behavior">

<h5>Widget behavior</h5>

Understand how widgets work in detail.

</RefCard>

</TileContainer>