So I wanted to add a reply to this for Apple macOS Users. Feel free to add this to the Readme.
For macOS you may need to copy the individual optional texture packages into their individual respective folders, i.e. the Hero's Sword textures folder "01 Hero's Sword" and replace the "/TexturePack/Characters/Link/Hero's Sword/01 Hero's Sword" folder as there is a chance macOS could overwrite the whole link folder with only the Hero's sword and default to the non HD textures already supplied for the game.
Also to get it to work without slowdown above native resolution (640x528) using Apple M1 or newer hardware, you will need to modify the settings for Dolphin for graphics. See attached screenshots for each page of the graphics settings.
I was able to get it to 4x native (2560x2112) for 1440p with the settings in my screenshots with barely losing more than 1 FPS. This was tested on Dragonroost Island in the crater where there is all the individual particle effects and that caused me to go from 30 FPS down to around 20 FPS because of the HD Texture Pack. I hope this helps people.
For macOS you may need to copy the individual optional texture packages into their individual respective folders, i.e. the Hero's Sword textures folder "01 Hero's Sword" and replace the "/TexturePack/Characters/Link/Hero's Sword/01 Hero's Sword" folder as there is a chance macOS could overwrite the whole link folder with only the Hero's sword and default to the non HD textures already supplied for the game.
Also to get it to work without slowdown above native resolution (640x528) using Apple M1 or newer hardware, you will need to modify the settings for Dolphin for graphics. See attached screenshots for each page of the graphics settings.
I was able to get it to 4x native (2560x2112) for 1440p with the settings in my screenshots with barely losing more than 1 FPS. This was tested on Dragonroost Island in the crater where there is all the individual particle effects and that caused me to go from 30 FPS down to around 20 FPS because of the HD Texture Pack. I hope this helps people.