Another alternative is to fit a disc brake adapter that is 1.37x24TPI threaded and will therefore attach to the fixed side of a flipflop hub.
Not much use when the OP stated they wanted a 135mm hub. Trying to make a track hub fit a 135mm frame with anything approaching decent chainline is a fool’s errand.
@M_V started
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Another alternative is to fit a disc brake adapter that is 1.37x24TPI threaded and will therefore attach to the fixed side of a flipflop hub.