There are two things to consider with this. There is the technological evolution, as well as the evolution of the standards that support these technologies. Today, we are trying as much as possible to standardize the technologies we're using. As you mentioned, if technology becomes obsolete in the next 5 or 10 years and can't be updated, this will become a major challenge.
So we should combine technology because we have to keep up, but also ensure that the technologies we're using are not 100% proprietary, but that they are based on international standards that allow us to evolve over time.