Bruno's return from the Austrian Alps was one of relative peace. His days spent at home were largely focused on his work at the Central Division of German High Command, as well as the management of several major businesses.
Whether it was textiles, construction, extraction and processing of raw materials, heavy industry, etc., Bruno had largely invested in a wide variety of industries that he was either partially or fully the owner of. His wealth was vast, but nowhere near what it would be in the future.
Even so, the man had other concerns on his mind at the moment. Frankly speaking, while the Reich's railways were robust and more than capable of supporting the war effort should it arrive at their borders, investments into reinforcing this infrastructure so that it was capable of withstanding the stress of war and expanding into Austro-Hungarian territory, especially the Balkans, were needed.