I think that's only pc and console arc files since issue #589 is for ddda switch arc files as it gives an error when trying to unpack them.Karameru (from Kuriimu toolset) can unpack and swap arc files.
Tested myself. It may be not compatible only with Dragon's Dogma ARC files.I think that's only pc and console arc files since issue #589 is for ddda switch arc files as it gives an error when trying to unpack them.
I also tried fluffyquack's arctool but it doesn't work properly with ddda switch's arc as I get files that are 0'd out instead of xmls like the ddda pc's arc.
I saw that when searching for tools for switch arc files, guess ddda is different sadly.Tested myself. It may be not compatible only with Dragon's Dogma ARC files.
Look at issue #486