How to install cockpit dashboard on older Raspberry Pi 3, running Bookworm

Cockpit dashboard is a convenient dashboard for home user or enthusiasts for monitoring several SOHO servers. It supports multiple Linux based operating system, however there are some caveats in installing in Raspberry Pi 3 as it runs on older Bookworm based operating system.

first your need to add bookworm-backports.

echo "deb http://deb.debian.org/debian ${VERSION_CODENAME}-backports main" | sudo tee /etc/apt/sources.list.d/backports.list

Then you need to configure the keyring

curl -O http://http.us.debian.org/debian/pool/main/d/debian-archive-keyring/debian-archive-keyring_2023.4_all.deb 

sudo dpkg -i debian-archive-keyring_2023.4_all.deb  

Afterwards, you need to run this combo command to update software packages list

apt update  && apt -y upgrade

Then finally you install cockpit via bookworm-backports

apt install -t bookworm-backports cockpit

After everything is done, you may check cockpit dashboard by going to:
http://<ip address>:9090. and log in using your system username and password.