Some older mods use /atmosphere/contents/<titleid>/exefs/patches.ini . The skyline method is the modern standard for Atmosphere 1.5.0+.

SD:/atmosphere/exefs_patches/<patch_name>/<file>.pchtxt

While standard game mods often replace textures or models, "ptchtxt" (Patch Text) mods act as surgical strikes on a game’s executable code. They allow for transformative performance gains and graphical overhauls that aren't possible through traditional asset swapping. Here is everything you need to know about this essential modding resource. What is Switch-Ptchtxt-Mods?

: A human-readable text file that describes specific changes to a game's executable (

The community has created thousands of patches. Here are five famous ones that showcase the format’s power: