FAILURE: Build failed with an exception.

• What went wrong:
  A problem occurred configuring root project 'tweakeroo-fabric_1.17_temp_features'.

Could not resolve all files for configuration ':modCompileClasspath'.
Could not resolve com.terraformersmc:modmenu:2.0.2.
Required by:
project :
> Could not resolve com.terraformersmc:modmenu:2.0.2.
> Could not get resource 'https://maven.terraformersmc.com/releases/com/terraformersmc/modmenu/2.0.2/modmenu-2.0.2.pom'.
> Could not GET 'https://maven.terraformersmc.com/releases/com/terraformersmc/modmenu/2.0.2/modmenu-2.0.2.pom'. Received status code 521 from server: Origin Down

That error message is rather self-explanatory. The Mod Menu maven server is currently down.

So either wait for it to come back, or temporarily comment out the Mod Menu dependency in the build.gradle file here:

Actually I guess it still wouldn't compile due to that one class that references Mod Menu code, unless you also comment out most of this class: https://github.com/maruohon/tweakeroo/blob/fabric_1.17_temp_features/src/main/java/fi/dy/masa/tweakeroo/compat/modmenu/ModMenuImpl.java