Limits and Homes

Hello the Forum, I am thinking on using Linux CNC for an engraver I found in a scrap yard, minus electronic. That's probably good, it is - well- not THAT old. Three axis, heavy aluminum castings, stepper driven. Anyway, from motion control software I did back 15 ~20 years ago, home, CW limit and CCW limit were all wired in separately, now I see all three tied together. Well, if the machine had hit a limit sw, knowing which side allowed the operator to jog in only one direction until the limit condition ended. In homing, the operator must then take care that a limit was not hit instead of a home sw.

So I ask, is bringing all three signals, separately, per axis to the controller now considered extreme? It seemed to be the correct method back then. Then I wonder if it is just not enough FAST dedicated pins to connect all these signals individually?

Thanks, Stan