Update README.md

Flatpak opengl "hack"
2 years ago · ac18f96011
parent 350dca5d21
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@ -225,6 +225,15 @@ To enable MangoHud for all Steam games:
 flatpak override --user --env=MANGOHUD=1 com.valvesoftware.Steam
 ```

+For OpenGL, using Citra as example:
+```
+flatpak run --command="bash" org.citra_emu.citra /usr/lib/extensions/vulkan/MangoHud/bin/mangohud --dlsym /app/bin/citra-qt
+```
+Allow read-only access to configuration file:
+```
+flatpak override --user --filesystem=xdg-config/MangoHud:ro your.flatpak.application
+```
+
 # Normal usage

 To enable the MangoHud overlay layer for Vulkan and OpenGL, run :