Melvin Conway doesn't refer to software systems alone. For the information technology world, his observation means that the design of a code base gets largely influenced by the way an organisation structures its own teams. You might be wondering as to why we are discussing team structures here. This has to do with certain characteristics of a microservices architecture, which advocates the decentralizing of all things.
Conway's law :
Organisations that design systems are constrained to produce designs that are copies of the communication structures of these organisations.
Traditionally, the choice of technology to be used is decided and applied organisation wide, so you belong to either a Java camp or some other, ...
