How to run multiple applicaitons in the same pressure-vessel?

[puyebu]

How to run an application in the same pressure-vessel?
Without it, second application cannot access memory of the first application.
They do run in the same prefix.

[mmbossoni]

Quick workaround now is to set PRESSURE_VESSEL_SHELL=after variable.
This will open a shell inside pressure vessel were you can $PROTON_PATH/proton run /path/to/the/exe

A few helper variables will exist inside it, like $WINEPREFIX for your current prefix and $@ is the game command being executed

[Faugus]

@mmbossoni thanks for this!

PROTON_PATH wasn't set inside the shell, so I had to navigate to ~/.local/share/Steam/compatibilitytools.d/GE-Proton9-20/ and run ./proton run /path/to/the/exe.

@R1kaB3rN any chance to make an option for this? Like a PROTON_VERB or something.
This is pretty helpful for using mods, trainers, cheat engine, etc.

[loathingKernel]

Just to confirm, trainers and cheat engine do not work with the documented verb manipulation i.e. running the first application with waitforexitandrun and any subsequent applications with runinprefix?

[Faugus]

@loathingKernel It doesn't work. It detects the game's executable, but can't apply the modifications.

[R1kaB3rN]

@R1kaB3rN any chance to make an option for this? Like a PROTON_VERB or something. This is pretty helpful for using mods, trainers, cheat engine, etc.

Sure, pull requests are welcome. And while I have some ideas to approach this, I think the less involved way for now is to do this within protonfixes. For example, there'll need to be a Python function in util.py that'll create the subprocess for the trainer or whatever in the background. This feature would be configurable to clients/users via a new environment variable separate from GAMEID. But in the future, for organization, it would probably be best to extrapolate that specific functionality as a separate module.