With Donald Trump tearing up the world order, governments across Europe are having to confront the fact that most of the technology they rely on comes from US companies. French officials have taken a step this week to reduce their dependence on US digital infrastructure, announcing they have stopped using Zoom, the US-owned video meeting software, in favour of a French-made program. But how viable is this? And what are the risks? The Guardian’s Michael Safi speaks to the tech journalist Chris Stokel-Walker – watch on YouTube