A system would be a collection of subsystem, really a collection of tools.
There would need to be a tool chain installation. If the tool chain is not installed , why would it work ? Is “systems integration” invariably a “clayton’s” system integration for the supplier’s benefit, the supplier then being able to claim payment for completed work.

If genuine tool chain installation was being done why wouldn’t the supplier be able to claim payment for tool chain installation ?

Is tool chain installation typically sabotaged by a rogue section of the supplier organisation – the rogue section then involving themselves as messiahs who assist with systems integration ?
Catherine: Markets are not free. Financial capital is highly centralized. Business is defined by economic warfare in which – increasingly – anything goes. Get good maps. Build excellent allies. Work hard. Pray for wisdom. Give thanks without ceasing.
“How often have I said to you that when you have eliminated the impossible whatever remains, however improbable, must be the truth?” Sherlock Holmes