Re-shoring something like electronics manufacturing is going to be quite difficult for those countries that outsourced it all to China.
For starters, you need factories i.e. physical buildings. Pick and place machines, machine shops for making precision plastic moulds, the trained personnel to run them and re-shoring all the knowledge for how things work and how to keep them working.
The entire supply chain for electronic components will also have to be re-shored as well. A lot of that depends on a local network effect (why Hong Kong was successful and why Shenzhen is successful).
In Australia we still have small pockets of electronic manufacturing (most of which was decimated by Japanese imports in the 1970s) so we are 50+ years from when things like that were routinely made here and rebuilding that is not going to happen at the stroke of a pen, it's going to require a lot of investment. That is something governments used to do quite well but the neo-liberal political movement not only killed manufacturing in this country, but also makes it impossible to restart it.
It costs me 1/10th of the price to have our circuit board made in China compared to the quotes I had from Australian factories. That is the kind of price difference that would kill my product stone dead.