bill@bill-laptop:~$ sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10/ /' > /etc/apt/sources.list.d/irssi.list"
[sudo] password for bill:
bill@bill-laptop:~$ sudo apt-get update
Hit:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Get:3 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 DEP-11 Metadata [288 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu xenial-updates/main DEP-11 64x64 Icons [188 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata [160 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons [188 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 DEP-11 Metadata [2,520 B]
Get:10 http://us.archive.ubuntu.com/ubuntu xenial-backports/main amd64 DEP-11 Metadata [3,324 B]
Get:11 http://security.ubuntu.com/ubuntu xenial-security/main amd64 DEP-11 Metadata [54.2 kB]
Get:12 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons [42.4 kB]
Get:13 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata [32.2 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe DEP-11 64x64 Icons [37.0 kB]
Ign:15 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  InRelease
Get:16 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Release [1,025 B]
Get:17 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Release.gpg [481 B]
Ign:17 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Release.gpg
Get:18 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Packages [1,769 B]
Fetched 1,305 kB in 9s (139 kB/s)
Reading package lists... Done
W: GPG error: http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EDB7AED941EEDB57
W: The repository 'http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-test/xUbuntu_16.10  Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
bill@bill-laptop:~$ sudo apt-get install irssi
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 irssi : Depends: libperl5.22 (>= 5.22.2) but 5.22.1-9 is to be installed
         Depends: perl (>= 5.22.2-3) but 5.22.1-9 is to be installed
         Depends: perlapi-5.22.2 but it is not installable
E: Unable to correct problems, you have held broken packages.
bill@bill-laptop:~$