How to use python in Editor to build lighting and package project?

Development Pipeline & Plugins Editor Scripting
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Still need answer and assistance, but will provide update on current research, in the event someone else is looking to solve the same issues.
Figured out how to call C++ code from a python script from this very helpful video. Not at all complicated as everything (may be some exceptions) exposed to Blueprints will also be exposed to Python.

PythonFunctions.h:

#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "PythonFunctions.generated.h"

UCLASS()
class PYTHONPROJECT_API UPythonFunctions : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()

public:
	UFUNCTION(BlueprintCallable)
	static void CalledFromPython(FString InputString);
	
};

PythonFunctions.cpp:

#include "../Public/PythonFunctions.h"

void UPythonFunctions::CalledFromPython(FString InputString)
{
	UE_LOG(LogTemp, Error, TEXT("%s"), *InputString);
}

Python script:

import unreal
unreal.PythonFunctions.called_from_python("Hello world")

Console output:

LogPython: unreal.PythonFunctions.called_from_python("Hello world")
LogTemp: Error: Hello world

(Exactly as expected)

Things to note:
Functions declared in PascalCase in C++ will be converted to snake_case within the unreal python module.

Further research:
To be able to call the build lighting commands, or the package project commands, it seems I either will need to go into the engine and expose that code to Blueprints/Python, or write some custom C++ code (Plugin perhaps) to call it for me.