(aaps-ci-option1-computer)=

Option 1 · Computer – Generate a new keystore

[Option 1](BrowserBuildO1.md) (generate a new keystore) on a **computer** (Windows / Mac / Linux).

1. Download the preparation file

:::{include} BrowserBuildDownloadPrep.md :::

2. Start a local server and generate the keystore

Use a computer (supports Windows/Mac/Linux)

Open the webpage https://simplewebserver.org/download.html

Install Simple HTTP Server
If you are a Windows/Mac user, you can install it from the store.
After clicking the link, you will be asked whether to allow opening it. Please choose Open Link.

Example on Mac:

get → install → open
Click Get Started
Click Get Server
In Folder Path, select the folder where aaps-ci-preparation.html is located, and then click Create Server.
Seeing this screen means the server has been started.
Do not close Simple HTTP Server. Please switch to your browser and open
http://127.0.0.1:8080/aaps-ci-preparation.html
For the subsequent steps, please refer to the video below, starting from 1 minute 37 seconds.

<iframe src="https://www.dailymotion.com/embed/video/x9rdrpy?start=97&autoplay=0&queue-enable=false&loop=1&mute=1" loading="lazy" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;" frameborder="0" allowfullscreen> </iframe>