===== Raspberry Pi OS =====
This is the default OS that is provided by the Raspberry Pi foundation and comes preinstalled on the micro SD card that the Hackberry ships with. 

==== Raspberry Pi Zero 2W ====
Amend the ''config.txt'' with the following line: \\ 
<code>
dtoverlay=vc4-kms-dpi-hyperpixel4sq
</code>
If you mount the micro SD card on a computer, it will be located on the ''bootfs'' partition under ''/firmware/config.txt''.\\ If you want to edit the file on a running Raspberry Pi (either through SSH or by attaching an external display via HDMI), it will be located under ''/boot/firmware/config.txt''.

Screen blanking should be disabled by default, but it is never a bad idea to manually disable it by running ''sudo raspi-config'' and navigating to //Display Options > Screen Blanking.//

==== Raspberry Pi 4B ====
==== Raspberry Pi 5 ====

==== Raspberry Pi CM5 ====
The following image is a clean install of Raspberry Pi OS. It comes with a configured ''config.txt'' to enable the display. Furthermore, it comes with Pi-Apps and Alacritty preinstalled. It also includes the battery voltage script.\\ 
{{rpios-base-compressed.img.xz}}\\
{{rpios-base.checksum.txt}}\\ 
Screen blanking should be disabled by default, but it is never a bad idea to manually disable it by running ''sudo raspi-config'' and navigating to //Display Options > Screen Blanking.//
=== External Display ===
If you fail to get an external display working, make sure you're using Wayland. \\ 
To do so, run ''sudo raspi-config'' and go to //Advanced Options > Wayland// and choose //Wayfire//, then reboot. The display should now be recognized and work automatically. \\ 
Use the Screen Configuration application to configure the orientation and arrangement. 

===== SDR++ =====
It is recommended to install SDR++ by compiling it from source.
Do the following:
<code>
# Install dependencies
sudo apt install git cmake libfftw3-dev libglfw3-dev libvolk2-dev libglew-dev portaudio19-dev libzstd1 libzstd-dev libairspyhf-dev libiio-dev libad9361-dev libairspy-dev librtlsdr-dev libcodec2-dev librtaudio-dev libhackrf-dev

# Download the code
cd ~/Downloads
git clone https://github.com/AlexandreRouma/SDRPlusPlus.git

# Build
cd SDRPlusPlus
mkdir build
cd build
cmake ..
make -j4

# Install
sudo make install
</code>
You can now run SDR++ from the applications' menu or from the terminal with ''sdrpp''.\\ 
Make sure you're connected to the bluetooth speakers or any other audio device. In SDR++, scroll down to the Sinks tab, make sure the right audio device is selected, and set the bitrate to 44100.