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Does it need to be done in a non-reactive atmosphere (ie nitrogen) or anything along those lines?

If the failure cases are dangerous (magnesium fire?), then the safety precautions might keep it out of general consumer availability.

It builds on normal electroplating which is already a safe DIY activity, best not do drink it though.

This is selective electroplating by only applying electric current to pixel sized areas and building up the object layer by layer like a resin printer. It's truly amazing what it can do. It's just really new.

https://fabric8labs.com/

Cool. That looks super interesting. :)

Made a submission about it, as it looks so interesting:

https://news.ycombinator.com/item?id=40803783

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