Add an `install.sh` for easy install

Relevant sub-area for this feature?

PDE

Feature details

Feature description

We are about to add a nix distribution and FlatHub distribution to Processing, making installation on Linux a little bit more complicated. To solve this it would be helpful to create an install.sh script that will scan the system for the best installation method and then continue with installing Processing in that chosen way.
Would be cool if an override method could also be selected.

Benefits

This will greatly simplify how Processing is installed on Linux, simplifying the command to curl https://processing.org/install.sh | sh

Challenges

• Creating a maintainable script and linking to it from the website might be a challenge.
• Detecting the proper installation methods is hard to test

Additional context

Idea: @catilac

Would you like to help implement this feature?

No, I’m just suggesting the feature