Ask HN: career advice for mom? Has spent years using Fortran

Hi HN,

My mom has doing freelance computer consulting for 10-20+ years, mainly with something called GL4, which she says is similar to Fortran. It's really specific and for very niche clients.

Long story short, her client list is starting to dry up. I recommended that she learn something more modern, as there seems to be a huge demand for experienced programmers.

Any suggestions on what language(s) to learn? Keep in mind that she isn't going to run off to SF and join a startup, and that remote or semi-remote work is much preferred.

Not really looking for a huge career change here, more like... spend 6 months learning X (which is easy for a person familiar with Fortran) and get a decent position with reasonable hours / freelance work.

Thanks a ton, it is much appreciated.