Integrated NBT
Integrated NBT is an extension module for the Integrated Dynamics mod in Minecraft. This addon provides an intuitive graphical interface for quickly extracting nested values from complex NBT variables.
Visual examples:

Support for different output modes:

Responsive interface:
The interface displays optimally on all screen resolutions and GUI scales:

Required Components
Requires the Integrated Dynamics mod to be installed, as this addon is an extension of it.
Usage
The mod adds two main elements: NBT Extractor and NBT Extractor Remote.
NBT Extractor: Place the block and connect it to the Integrated Dynamics network. Open the interface with a right-click and place an NBT variable in the left slot. The variable must be evaluable within the connected network. After loading the variable, a tree structure of data will be displayed on the screen.
Select the desired value by left-clicking on the corresponding element. Then place an empty or unneeded variable in the right slot to record the extraction process. The resulting variable can be used like any other in the system.
NBT Extractor Remote: Create a remote controller and bind it to the NBT Extractor by right-clicking on the block. As long as the bound block is loaded on the client (in the current dimension and not too far away), you can interact with it through the remote controller.
The extraction process is stored in the variable, so after setting up the system, the NBT Extractor can be removed.