to further this along, often i code without internet and just have VMs on my laptop. I think assuming internet is everywhere for development is wrong.
AFAIK the last big push to get out of "it works on my machine" was the JVM which has become a bloated, inefficient mess that a vast chunk of the industry uses anyway, because most often it's deemed "good enough" and Java, Kotlin etc. devs are relatively easy to find and/or train compared to "native" development in say C/C++, Rust, etc.