> 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/building-and-programming-an-application/compiling-applications-with-nrf-connect-extension-for-vs-code.md).
# Compiling Applications with nRF Connect Extension for VS Code
To make zephyr-based application development a breeze, the BLITZ board is also compatible with the newly released nRF Connect SDK extension for the VS Code.
### **Adding an existing application to nRF Connect for VS Code**
Once you are all set with the [nRF Connect Visual Studio Code Extension Pack](https://marketplace.visualstudio.com/items?itemName=nordic-semiconductor.nrf-connect-extension-pack) installation, start the extension in the VS Code.
{% hint style="success" %}
Installing nRF Connect Visual Studio Code Extension Pack will also install all the required dependencies.
{% endhint %}
First, Open Existing Application:
Open Existing Application
This will open the file browser on your machine. Navigate to the location where the `led_blink` sample application resides (`ncs/v2.6.0/conexio-firmware-sdk/samples/conexio_blitz/led_blink`) and click **open**.
Browse the sampe application
On the left pane, under **APPLICATIONS**, you should now see the ported application.
### **Compiling an application using nRF Connect Extension**
Prior to compiling our sample application, we need to first generate the device build configuration for our project, by clicking on **Add Build Configuration (1)** option as shown below.
This opens a new tab, asking the user to select the board for which the build configurations will be generated. In our case, we will
* (2) check the **All boards**
* (3) then search for `conexio_blitz_cpuapp` .
* (4) click **Build Configuration** to start the Zephyr application build process.
Now, you should see the build process kicking in the background and generating the required files and binaries for the `led_blink` sample application.
Once the project is compiled successfully, in the project navigation panel, you will see all the generated files.
Well done! You have successfully managed to compile the sample application within the nRF Connect extension.
### **Flashing an application**
To upload the Conexio Stratus Pro firmware, we now have to:
* Open the terminal within the nRF Connect extension and invoke the `newtmgr -c serial image upload build/zephyr/app_update.bin` as shown, making sure the device is in DFU mode.
