What's the difference between techno-relics, magitech, and gadgets? Would a powered gadget that uses a spell engine be considered magitech?
Relics, both Techno and Arcane, are items that *generally* cannot be re-created, either due to a special circumstance in their making or due to lost technology.
Gadgets are a catch-all for a mechanical devices. Some of them are Magitech (created from disciplines gleaned from Ancient Akenia) which do incorporate things like spell engines and other things to emulate the use of magic, but there are other disciplines as well, like Gleysian Puretech.
The blog post was written with various in-game terms in mind and I will admit I'd not considered how it would look various social media feeds, consider this a lesson learned ^_^;