Virtualmin - how to get same ENV Variable like in CLI (bash)?

[suther]

SYSTEM INFORMATION
OS type and version	Ubuntu Linux 20.04.6
Webmin version	2.021
Usermin version	1.861
Virtualmin version	7.7
Theme version	20.21
Package updates	All installed packages are up to date

I have a custom command which installs nvm in a user-context:

During install-process, it add some entries to bashrc to make it work as expecting.
This is added at the end of .bashrc

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

If I login as user, and do node --version I see my choosed Version 18.15.0.

But if I do execute same command node --version via custom commands, I see another node-version (10.x) which is not from nvm.

So I’ve added the command env to custom commands and found, that there are no path to nvm-node are added.
I tried with the same user in both cases. Means on CLI & via Virtualmin (switch into VM-Server Admin as user)

QUESTIONS:

1. How to make the custom commands environment variables equal to the bash-ones?
2. Why does custom commands don’t have the same env-vars / values as bashrc has? (in wich context does the user run here?)

BTW: I’ve tried to create and use ‘Virtuamin → System Customization → Global Variables’ for custom-commands, but don’t get it to work. Any suggestion how to use this?