Here's the (obscenely obsolete, as always) wiki: https://wiki.ubuntu.com/Quickly
It tells me to apt-get install quickly
. Okay:
$ sudo apt install quickly
...
E: Unable to locate package quickly
https://packages.ubuntu.com/quickly -- shows any signs of life in Trusty 14.04LTS only.
I'm on Xenial:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
Didn't even tried the thing once. So sad!
Perhaps there's a PPA or something with newer builds?.. Anyone aware of any developments going on with Quickly?
Quickly has indeed not been supported for quite some time, and no longer maintained.
Yes, it's dead. You could try to build it from source using the latest version – see How do I install a .tar.gz (or .tar.bz2) file? –, but I really doubt the program is useful any more after such a long time.