> For the complete documentation index, see [llms.txt](https://docs.conexiotech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.conexiotech.com/getting-started-with-conexio-blitz/conexio-blitz-overview/programming-and-debugging/nrf-connect-sdk-installation.md).
# nRF Connect SDK Installation
The Conexio devices currently only support [ZephyrRTOS](https://www.zephyrproject.org/). To access all the features and capabilities, Nordic Semiconductor has developed the [nRF Connect SDK](https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/introduction.html) (NCS) that enables you to develop applications for nRF53, and nRF91 Series devices that powers Conexio devices.
To make nRF Connect SDK installation a breeze, follow the following steps.
* Download and install a cross-platform tool [nRF Connect for Desktop](https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-desktop) for your operating system.
* Install and run the nRF Connect tool on your machine.
* Click I**nstall** next to the Toolchain manager as shown below.
* Once the Toolchain manager is installed, click open.
{% hint style="info" %}
The Conexio BLITZ sample applications are currently compatible with **nRF Connect SDK V2.6.0 and above.**
{% endhint %}
* Select **nRF Connect SDK v2.6.0** and click **Install**. Depending on your internet speed, it may take a few tens of minutes, so go and grab yourself a cup of coffee **☕**
* Once the installation is complete, click the dropdown menu and hit **Open Terminal**.
* This will open the terminal in the installed directory of the nRF Connect SDK as indicated. In our case **nordic/ncs/v2.6.0**.
Hooray🎉 . You have completed the first milestone.
**References**
1. [nRF Connect SDK](https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/gs_assistant.html#gs-app-tcm) installation documentation by the Nordic Semiconductor.