Technical Docs Install Erlang on Ubuntu 20.04 with apt Add Erlang GPG key 1 2 3 sudo apt update sudo apt install software-properties-common apt-transport-https wget -O- https://packages.erlang-solutions.com/ubuntu/erlang_solutions.asc | sudo apt-key add - Add repository 1 echo "deb https://packages.erlang-solutions.com/ubuntu focal contrib" | sudo tee /etc/apt/sources.list.d/erlang.list Install Erlang 1 2 sudo apt update sudo apt install erlang Verify 1 erl