Hello. Thanks for the input. We know most of these and TWC is globally under a process of moving towards a self-hosted infrastructure. We have a self-hosted url shortener, but we still have to structure a process to guarantee that the social media teams use them.
For the calls, Zoom is pretty entrenched in our infrastructure, but we plan to eventually replace it. For obvious reasons of hardware performance, we are keeping it as one of the last steps, because we often organize webinars with 100+ people, and our current infrastructure probably wouldn't handle it with like a jitsi instance or similar.
The security party is also intended as a way to attract people who could bring more expertise on these topics into the infrastructure team and accelerate this transition.