I designed and built my own DSL router: component selection, PCB design, and so on. When NBN upgraded the link to my home I simply went and bought a 10Gbps ethernet router. Despite any compact PC with SFP+ cages doing the same job more cheaply.
Exactly because the window of time I had for fooling with home networking had closed.
Europe is bulding consensus on what technology sovereignty means. This is a self-interested statement within that discussion. At some point the EU will appoint at rapporteur to synthesise those viewports into a formal definition. The EC will use that to develop a programme of works which is satisfactory to the member states and other interested states.
The US is often lulled by the seemingly endless discursive nature of pan-European projects to think that they are not serious or effective. And then one day there is an Ariane or Airbus or Galileo.
Exactly because the window of time I had for fooling with home networking had closed.