diff --git a/README.md b/README.md
index 5b64ceaa..9cd3044f 100644
--- a/README.md
+++ b/README.md
@@ -54,11 +54,14 @@ Running the demo is as simple as:
     $ RUSTFLAGS="-C target-cpu=native" cargo run --release
 
 The SDL 2 library requires some additional manual installation steps. Follow the
-[`rust-sdl2` installation instructions](https://github.com/Rust-SDL2/rust-sdl2#sdl20-development-libraries) to make sure the libraries are installed.
+[`rust-sdl2` installation instructions](https://github.com/Rust-SDL2/rust-sdl2#sdl20-development-libraries) to make sure the libraries are installed. Note that SDL2 is
+only required to run the demo; Pathfinder itself has no dependency on the library.
 
 On macOS, it is recommended that you force the use of the integrated GPU, as issues with Apple's
 OpenGL drivers may limit performance on discrete GPUs. You can use
-[gfxCardStatus.app](https://gfx.io/) for this.
+[gfxCardStatus.app](https://gfx.io/) for this. See the
+[wiki](https://github.com/pcwalton/pathfinder/wiki/GPU-driver-compatibility) for more information
+on GPU compatibility issues.
 
 ## Authors