diff --git a/README.md b/README.md
index 18a674e..59d395b 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ My personal NixOS system configuration.
 | `modules/audio.nix` | PipeWire |
 | `modules/desktop.nix` | Plasma, SDDM, fonts, theming |
 | `modules/users.nix` | Account, shell, Steam, Flatpak |
-| `modules/apps.nix` | Installed packages, nix-ld |
+| `modules/apps.nix` | Installed packages, nix-ld, AppImage support |
 | `modules/default-apps.nix` | MIME associations |
 | `modules/scripts.nix` | Custom scripts in `modules/scripts/` |
 | `modules/fastfetch.nix` | Installs `configs/fastfetch/config.jsonc` system-wide |
diff --git a/modules/apps.nix b/modules/apps.nix
index adee437..f87318e 100644
--- a/modules/apps.nix
+++ b/modules/apps.nix
@@ -123,4 +123,9 @@ in
     libxrandr libxcursor libxcb libxkbcommon
     alsa-lib mesa zlib stdenv.cc.cc
   ];
+
+  # Registers AppImages with binfmt_misc, so ./Foo.AppImage (or a double-click
+  # in Dolphin) runs straight through appimage-run's FHS environment.
+  programs.appimage.enable = true;
+  programs.appimage.binfmt = true;
 }