Its because hiring people overseas usually require larger companies to have offices locally. There are a lot of cultural differences. So unless they do it at scale, it just generates more costs.

i'm just glad that i have an arrangement at the moment where it's ok for me to do only part time so i can do my nostr stuff at an adequate pace software development is a funny thing... people who write really good tools and libraries can do a lot less hours and produce a better product and sooner, but usually that sort of development isn't done for pay in the first place it's a bit like the carpenter who sharpens and polishes his tools and spends a lot of time practising doing joins and corners and making things square and level and polishing them smooth