Ask HN: How did productivity in your field improve in the last 10 years?

We constantly get new releases of shiny new libraries and frameworks, new languages, even new programming paradigms, but I'm curious as to how this accumulates over the years. Every time I read a comment here along the lines of "this stupid Electron app would've been done in Delphi back in the day, take 1 megabyte of memory and half time to ship", I wonder how much of it is glossing over all the unseen complexity of non-functional requirements, long-term support and other things - and how much of this sentiment is actually true.

So, what's a typical project in your particular industry and niche? Real project, for real customers (or consumers), not a hello-world tutorial. What non-obvious requirements and limitations does it have? And how long and expensive would it be to deliver the same project, for the same market, using technology and tools of, say, ten years ago?