Build and install nymea network manager for bluetooth connectivity

https://www.berrylan.org/faq.html

echo "deb http://repository.nymea.io buster rpi" | sudo tee /etc/apt/sources.list.d/nymea.list
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key A1A19ED6


sudo apt-get update
sudo apt-get install nymea-networkmanager dirmngr

sudo systemctl disable dhcpcd
reboot

# to connect and test without making it impossible to connect back to you pi if you're using an existing wifi connection
systemctl stop dhcpcd && systemctl restart NetworkManager && systemctl restart nymea-networkmanager

# Once you've connected and tested

sudo systemctl disable dhcpcd
sudo systemctl enable nymea-networkmanager.service