$ echo 'deb "https://s3.amazonaws.com/assembla-debs/xenial" assembla main' | sudo tee /etc/apt/sources.list.d/assembla.list
$ wget -qO - https://s3.amazonaws.com/assembla-debs/163CEEAD.asc | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install subversion
$ echo 'deb "https://s3.amazonaws.com/assembla-debs/trusty" assembla main' | sudo tee /etc/apt/sources.list.d/assembla.list
$ wget -qO - https://s3.amazonaws.com/assembla-debs/163CEEAD.asc | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install subversion