I didn’t realise aluminium kicks like a mule. One chunk of cut-off metal barely missed my wife’s car (this was literally in the garage). I also learned not to wear a good shirt while cutting - the hot metal filings melt straight into the fabric.

Invention is messy, slow, and often frustrating — but when it clicks, it’s worth every failed part and dead-end phone call. If you’re a builder too, let’s talk.