PK3ds has had some updates. I think it just makes dumping/repacking the 4 folder a lot more stable. There are also a few added features, but they don't matter too much unless you're using pk3ds to randomize/edit some of the garcs (which you wouldn't be doing if you're just replacing textures). Heres a link to the newest version:
https://teamcity.projectpokemon.org...&buildTypeId=Pk3DS_BuildWindows&tab=artifacts. When you click on the link just log in as a guest and go to the artifacts tab. That will give the newest build. Also I know Ohana3ds has been updated a bunch but I can't find the github link for the one that supports Sun/Moon.
--------------------- MERGED ---------------------------
I believe this is the newest Ohana3d (might be wrong). I'm pretty sure this is newer than the one I linked in my video (I don't know about the one linked here) because I don't think I was using the newest version for that tutorial.
https://github.com/smb123w64gb/Ohana3DS-Rebirth/releases