This documentation is based on Pop 21.04
Install dependencies (list not complete):
apt install pandoc libcap-dev libjson-glib-dev libelf-dev libva-dev libvdpau-dev gtk-doc-tools
Clone the project:
git clone https://gitlab.steamos.cloud/steamrt/steam-runtime-tools.git
Build the Steam runtime tools, including Pressure Vessel:
cd steam-runtime-tools
./build-aux/many-builds.py setup
./build-aux/many-builds.py build
./build-aux/many-builds.py install
in 1st terminal
export dbusname="com.steampowered.PressureVessel.Test"
cd _build/containers/pressure-vessel/bin/
./pressure-vessel-launcher --bus-name "$dbusname"
in 2nd terminal
export dbusname="com.steampowered.PressureVessel.Test"
cd _build/containers/pressure-vessel/bin/
./pressure-vessel-launch --bus-name "$dbusname" ~/Games/linux/doom-3/doom.x86