Funtoo/Gentoo
Here are pages on Funtoo/Gentoo.
About
Funtoo is a distribution based on the portage package manager. All packages are compiled from scratch. It's important to have either a lean OS, or a powerful computer, otherwise compile times will be long (if using X). Compile times are less of an issue if headless, although I would not run on ARM.
Table of Contents
Deblobbing
Used to use ck-sources, but it's discontinued ;( You can use rt-sources with deblob flag. But, that may not be as stable, and see bug report below. See: https://wiki.gentoo.org/wiki/Kernel_Deblobing (spelling error...?)
If gentoo-sources is an rc, ignore that. When you run the script, you don't need to explicitly specify python 2.7. See also: https://bugs.gentoo.org/show_bug.cgi?id=744808
Did you know: Debian ships a deblobbed kernel by default.