PRSS ships as a portable archive on Linux — no installer, no package manager required.

1. Unzip the archive

unzip PRSS-linux.zip -d prss
Extracting the PRSS archive

2. Run it

Open the extracted folder and double-click the prss binary, or start it from a terminal:

cd prss && ./prss
PRSS starting on Linux

3. Ubuntu 24.04 and newer

If PRSS exits with "FATAL:credentials.cc(127) Check failed: . : Permission denied", the kernel's unprivileged user namespace restriction is blocking Electron. Allow it with:

sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

This affects every Electron app on those releases, not just PRSS; the Electron issue tracker has the background.

That is the whole setup. Send feedback any time through About & Help in the PRSS sidebar.