[Request]: UMU: Allow to run something before you execute umu

Tell us the problem or your need

There is currently no way, to start something before umu-run gets launched. So for example I'm not able to run hdr-toogle before the game starts.

Describe the solution you'd like

Either allow to modify the command to do e.g. hdr-toggle %command% so I can run something in advance. Or add a post-script where you can run things beforehand.

This works for normal bottles. It is just missing for UMU.

Other solutions?

No response

Additional context and references

No response