Is there a way to speed up future builds?

[FriedGenera]

I was wondering when we compile Ungoogled-Chromium, is there a way to cache or speed up future builds? Do we use the same commands outlined in the Building section of the README when we are building future versions of Ungoogled-Chromium? Are we supposed to keep everything under the build directory intact after each successful compilation? Do newer versions of python speed up the building process(3.12/3.13)?