Re: hey why dont you actually build something...
From one anonymous cow turd to another.
It might be no more than a single board, but have you looked at the component market before you vomit your comment onto the forum bucket?
Simple chicken feed componets are in short suppy, the latest for me, an mma0204 resistor that has availability for April 2020!!! Caps are getting short, try a 50V 10uf 1206 and see how many have availability dates of next year.
It doesn't matter if you're making it in house or sub contract, if the parts aren't available you can't make it, or you have to buy the next more expensive part as replacement so your costs go up now and next time, when you buy the next more expensive part, until there are none left and you have to make a design chnage.
As with all articles, it helps to read the text before letting your pearls of wisdom fall in to the bucket.