Off topic, but I felt compelled to express my love for the work of this company Objective See.
I've been using their application called Lulu every day, and I cannot imagine working on a Mac without it. So thankful that it exists, and that it's open source!
Not feature-rich as Little Snitch.
However, it's free and open source. I primarily use Little Snitch for my iMac and MBP. But use LuLu as well on other machines.
Can highly recommend all the other apps Patrick Wardle (Objective-See) has developed.
I've been using their application called Lulu every day, and I cannot imagine working on a Mac without it. So thankful that it exists, and that it's open source!
https://objective-see.com/products/lulu.html
"LuLu is the free, open-source macOS firewall that aims to block unknown outgoing connections, unless explicitly approved by the user."