Years ago I couldn't get a proper string for my recurve locally so I took the small step of learning to make them myself.
A guy in a local archery shop showed me how to make endless loop strings. He hated making strings so I made them for him in his shop for a while just to get the process down. Later when I started making Flemish twist strings I took him a string board and taught him how to make them to return the favor.
Flemish strings are really easy to make, I sometimes wonder why anyone would "buy" one.
I am glad people do buy them though, I know some great guys who make them professionally and they need the business.