I concluded the same as caymanjim. I’m a firm believer in “Your spare time is only worth money if you’d otherwise be making money.” I’m not paid hourly, so the opportunity cost of my spare time is $0, and like many tech companies, mine forbids freelancing/moonlighting. The math works out to favor DIY in my case but it’s obviously not for everyone.

If I had a job where more hours directly translated into more money, 1. I would drop DIY projects and 2. I would probably become a workaholic.