Skilled hardware technicians for such tools (some from ASML) have a sciences/maths background (no, javascript/c++ coder without such background does not cut it and where did you see "highly skilled" here??).
They need a lot of "training", so, if there is no long term outcome... that's going to be tough.
If I recall well a documentary about ASML, each photolitography tool has such trained individual attributed during its whole life time. And that was for "simple" DUV tools (immersion photolitography).
They need a lot of "training", so, if there is no long term outcome... that's going to be tough.