grr.app software package provides RSS reader for GNUstep, 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 grr.app
grr.app is installed in your system.
Make ensure the grr.app package were installed using the commands given below,
$ sudo dpkg-query -l | grep grr.app *
You will get with grr.app package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | GNUstep |
| Package | grr.app |
| Version | 1.0-1+b1 |
| Description | RSS reader for GNUstep |
| Sub Section | gnustep |