> For the complete documentation index, see [llms.txt](https://docs.theconfigteam.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.theconfigteam.com/prebilt-for-im-wm-strm/installation-guide/frontend-preparation.md).

# Frontend preparation

{% hint style="info" %}
**Note**

There are several different ways to prepare to access PreBilt from either mobile devices or computers. These include APK files for Android devices, a dedicated URL for web access, or the PSE (PreBilt Standalone Edition) desktop setup.
{% endhint %}

{% hint style="danger" %}
As of release 5.6.0, PreBilt can only be run over HTTPS connections due to the usage of service workers and WebSocket in the application. 
{% endhint %}

## Android Package Kits

Traditionally for testing on an Android scanning device, an APK file needs to be created by the project team and then deployed onto the Android devices. The APK file contains all the frontend (UI) code required to logon and run the PreBilt transactions on the device.

There is an online APK Builder available for this: APK Builder: [PreBilt APK Builder](https://apkbuilder.theconfigteam.com/), which can create an APK using frontend files supplied by TCT. 

Currently this is only available to TCT consultants and they will support in the creation of any APKs.

## Hosted UI

As of release 5.6.0, the recommended method to access PreBilt (and its frontend code) is to host the frontend code within SAP and have an appropriate URL generated, which can be wrapped up in a PWA if required for deployment to devices. See the [Hosted UI deployment](/prebilt-for-im-wm-strm/installation-guide/frontend-preparation/hosted-ui-deployment.md) page.

## PSE (PreBilt Standalone Edition) Desktop

Finally, for testing purposes, it is possible to locally install on windows computers an executable package that can run PreBilt. It is not envisioned that this is used in the production SAP system as maintaining local versions of all the frontend code can become problematic. See the [PSE Desktop](/prebilt-for-im-wm-strm/installation-guide/frontend-preparation/pse-desktop.md) page for details.