Install Duplicati Backup on Raspberry Pi 4/Zero 2

• sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
• echo "deb https://download.mono-project.com/repo/ubuntu stable-focal main"
• sudo tee /etc/apt/sources.list.d/mono-official-stable.list
• sudo apt update
• sudo apt install mono-devel gtk-sharp2 libappindicator0.1-cil libmono-2.0-1
• sudo apt install apt-transport-https nano git-core software-properties-common dirmngr -y`
• wget https://updates.duplicati.com/beta/duplicati_2.0.6.3-1_all.deb
• sudo dpkg -i duplicati_2.0.6.3-1_all.deb
• sudo apt -f install
• sudo dpkg -i duplicati_2.0.6.3-1_all.deb

Enable Remote WebUI

• sudo nano /etc/defauts/duplicati
• DAEMON_OPTS="--webservice-interface=any --webservice-port=8200"

Fix EVP_MD_size assembly: type: member:(null) DismissShow

• wget http://launchpadlibrarian.net/554990934/libssl1.1_1.1.1f-1ubuntu2.8_armhf.deb
• dpkg -i libssl1.1_1.1.1f-1ubuntu2.8_armhf.deb