I have a hotch-potch of tools and then glue the results together by hand. It doesn't take me long, but I vet all the results to make sure it's all valid.

It's pretty trivial stuff - a GET on hn.algolia.com and a simply python script to pull just the bits that matter.

Hah - like CarolineW I have a random collection of scripts that I use in an ad hoc manner. Some time ago I automated the entire process and people got very unhappy, so now when I do it, I do it "by hand" (to steal the phrase).

I suspect a lot of people have similar scripts, none polished, all just held together with spit and baling wire.