JPackageScriptFX | tutorial project featuring a build script

I have created a JavaFX application. It runs perfectly in my Intellij IDE. Now I want to distribute the application - i.e. I want to obtain an installer that users could download and then it would install the application for them.

I found a very interesting article about this here. This blog article basically describes what I want to achieve. There are two differences though:

1. I am using Maven and not Gradle

2. I have dependencies which use automodules such as iText7 and apache.commons.lang3

The usage of automodules is making things very complicated. There is a GitHub project called ModiTect (here) that has been written to solve these issues. I have no experience in using ModiTect though and even my Maven knowledge is barely existent (meaning: I don't really know what I am doing in the pom.xml).

What I am looking for is an explanation (step-by-step) as on how to integrate ModiTect (and if necessary jpackage) into my pom.xml in order to obtain an installer for my JavaFX application that uses automodules (and also a sqlite database, which shouldn't be a problem though).

Can somebody provide this explanation or refer me to a tutorial?

I provide a MWE at the end of this question. The MWE ist a TestApp. To illustrate the problem, run the application and press the "Print PDF" button. A pdf is created in resources --> pdf

The MWE will compile and run when executing javafx:run There will be an error related to the usage of automodules when executing javafx:jlink

I don't know how to fix this. ModiTect appears to be a promising addon. Another possible way can be found in this GitHub repo. But as I said before: My Maven knowledge is not sufficient to really grasp what is going on here. Any help would mean a lot to me!

MWE:

pom.xml:

My JavaFX program needs to compute a file name path for various user-written files such as the product-specific preferences. For example, "Do you want to open your previous file the next time the program starts" and so on. I have successfully experimented with https://github.com/dlemmermann/JPackageScriptFX and "jpackage" for Windows at least, so it looks like I will shortly need a way to code, in a cross-platform manner, the "correct" path in which to store such files.

Is there a standard API or coding technique that will give me a file path that the program can write using user permissions that is "correct" for these native platforms?