My world doesn't (and never has) really differentiated between magic and technology. They're one and the same thing, sciene is merely the study of observable events, when magic is an observable event, then science incorporates that magic as a matter of course. Machinery in my world uses mundane and magical components based on cost, use and prestige.

I use the same thought for Alchemy, it's merely a fancy name for chemistry in my worlds, and is unrestricted as a result. You don't need to be a spellcaster to understand what happens when substance A is heated and added to substance B.

The difference for a spellcaster is simply the lack of need for apparatus. ANY spell can be replicated in my world by essentially mundane 'scientific' means, but it requires huge amounts of investment for the equipment, power and materials required. Spellcasters flick bat poo at you and mumble something which is probably rather rude, and get the same effect. No wonder they're all smug bastards...