Early 2019 we will be launching a closed Alpha for the Portmaster on Linux. And soon after on Windows. Please Post questions here.
What requirements do I have to fullfill being allowed to test the alpha?
sorry for responding late, we still have some technical issues with the forum - looking into this asap.
If you want to join, this is pretty easy - the download page is available on our homepage: https://safing.io/download/
Currently the alpha is only available on Linux, Windows is coming later this Summer.