flowblade software package provides non-linear video editor, 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 flowblade
flowblade is installed in your system.
Make ensure the flowblade package were installed using the commands given below,
$ sudo dpkg-query -l | grep flowblade *
You will get with flowblade package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Video |
| Package | flowblade |
| Version | 1.6-2 |
| Description | non-linear video editor |
| Sub Section | Video |