It's a very resource intensive process so make sure you check the requirements against your computer. It usually takes 30 minutes for computers in the recommended requirements region.
Once the build is done, we need to make sure the build was successful, check to see if something appeared like:
If you see that message, you can move on to the final step.
The final step is to run your cross-built version of Dot Browser.
Just remember you will not be able to run Windows binaries on Unix based systems like macOS or Linux. And you still might have issues running macOS binaries on Linux and vice-versa.