sudo apt-get install curl ca-certificates curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
sudo apt update
sudo apt-get install pgadmin4 pgadmin4-apache2 postgresql-client
la url es: localhost/pgadmin4