# Astro experiments installation - Docs
1. 1
## Create the PostHog component
Required
In your `src/components` folder, create a `posthog.astro` file:
Terminal
PostHog AI
```bash
cd ./src/components
# or 'cd ./src && mkdir components && cd ./components' if your components folder doesn't exist
touch posthog.astro
```
In this file, add your PostHog web snippet. Be sure to include the `is:inline` directive to prevent Astro from processing it:
src/components/posthog.astro
PostHog AI
```html
---
// src/components/posthog.astro
---
```
2. 2
## Create a layout
Required
Create a layout where we will use `posthog.astro`. Create a new file `PostHogLayout.astro` in your `src/layouts` folder:
Terminal
PostHog AI
```bash
cd ./src/layouts
# or 'cd ./src && mkdir layouts && cd ./layouts' if your layouts folder doesn't exist
touch PostHogLayout.astro
```
Add the following code to `PostHogLayout.astro`:
src/layouts/PostHogLayout.astro
PostHog AI
```html
---
import PostHog from '../components/posthog.astro'
---
```
3. 3
## Use the layout in your pages
Required
Update your pages (like `index.astro`) to wrap your app with the new layout:
src/pages/index.astro
PostHog AI
```html
---
import PostHogLayout from '../layouts/PostHogLayout.astro';
---
```
4. 4
## Implement your experiment
Required
Experiments run on top of our feature flags. You can define which version of your code runs based on the return value of the feature flag:
```javascript
if (posthog.getFeatureFlag('your-experiment-feature-flag') === 'test') {
// Do something differently for this user
} else {
// It's a good idea to let control variant always be the default behaviour,
// so if something goes wrong with flag evaluation, you don't break your app.
}
// Test that it works
posthog.featureFlags.overrideFeatureFlags({ flags: {'your-experiment-feature-flag': 'test'} })
```
5. 5
## Run your experiment
Required
Once you've implemented the feature flag in your code, you'll enable it for a target audience by creating a new experiment in the PostHog dashboard.
6. 6
## Next steps
Recommended
Now that you're running experiments, continue with the resources below to learn what else Experiments enables within the PostHog platform.
| Resource | Description |
| --- | --- |
| [Creating an experiment](/docs/experiments/creating-an-experiment.md) | How to create an experiment in PostHog |
| [Adding experiment code](/docs/experiments/adding-experiment-code.md) | How to implement experiments for all platforms |
| [Statistical significance](/docs/experiments/statistics-bayesian.md) | Understanding when results are meaningful |
| [Experiment insights](/docs/experiments/analyzing-results.md) | How to analyze your experiment data |
| [More tutorials](/docs/experiments/tutorials.md) | Other real-world examples and use cases |
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