Correct way to write a custom build script?

I want to create a custom script in which JSON will be collected from ScriptableObject by groups. I have no problems with serialization by groups, but addressable BuildScript is very difficult and I don't understand how to create a Content Catalog. How to do it?

Example:

Code (CSharp):

1. public class CustomSO : ScriptableObject
2. {
3.     public string displayName;
4.     public int health;
5.     public int maxHealth;
6. }

Code (CSharp):

1. [
2.   {
3.     "displayName": "Hello, world",
4.     "health": 50,
5.     "maxHalth": 100
6.   },
7.   {
8.     "displayName": "Greatings",
9.     "health": 150,
10.     "maxHalth": 150
11.   }
12. ]