OpenSnitch is a GNU/Linux application firewall.
Please, refer to documentation for detailed information.
OpenSnitch was originally created by Simone Margaritelli (evilsocket), 2017-2019.
Many others have also contributed over the time, see the list
THIS SOFTWARE IS A WORK IN PROGRESS, DO NOT EXPECT IT TO BE BUG FREE AND DO NOT RELY ON IT FOR ANY TYPE OF SECURITY.