cl-daemon software package provides make lisp process daemonize on unix like platform, 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 cl-daemon
cl-daemon is installed in your system.
Make ensure the cl-daemon package were installed using the commands given below,
$ sudo dpkg-query -l | grep cl-daemon *
You will get with cl-daemon package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Lisp |
| Package | cl-daemon |
| Version | 20150608-1 |
| Description | make lisp process daemonize on unix like platform |
| Sub Section | Lisp |