sudo apt install extrepo
Reading package lists… Done
Building dependency tree… Done
Reading state information… Done
The following additional packages will be installed:
libcryptx-perl
The following NEW packages will be installed:
extrepo libcryptx-perl
0 upgraded, 2 newly installed, 0 to remove and 4 not upgraded.
Need to get 635 kB of archives.
After this operation, 2,060 kB of additional disk space will be used.
Do you want to continue? [Y/n]
Seems OK.