{}:
 [(self: super: { 
    openttd-jgrpp = super.openttd-jgrpp.overrideAttrs (old: rec{ 
        version = "0.53.3";

        src = super.fetchFromGitHub rec {
            owner = "JGRennison";
            repo = "OpenTTD-patches";
            rev = "jgrpp-0.53.3";
            hash = "sha256-xpo4E07ifWUZy5z78Fwm1SpLP3wUBaBreZYbJuiNH3w=";
        };
    }); 

    androidStudioPackages.canary = super.androidStudioPackages.canary.overrideAttrs (old: rec{
        version = "2023.1.1.5";
        channel = "canary";
        drvName = "android-studio-${channel}-${version}";
        filename = "android-studio-${version}-linux.tar.gz";
        name = "${drvName}-unwrapped";

        src = super.fetchurl {
            url = "https://dl.google.com/dl/android/studio/ide-zips/${version}/${filename}";
            hash = "sha256-2CnuqW15bPgA6pOXGhWonUX7pM72oYNYrHFxafmcwrM=";
        };
    }); 
})]