alfred software package provides Almighty Lightweight Fact Remote Exchange Daemon, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install alfred
alfred is installed in your system.
Make ensure the alfred package were installed using the commands given below,
$ sudo dpkg-query -l | grep alfred *
You will get with alfred package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Network |
| Package | alfred |
| Version | 2016.1-1 |
| Description | Almighty Lightweight Fact Remote Exchange Daemon |
| Sub Section | Net |