install gentoo hints

To install gentoo, we must RTFM. Here is the FM: https://wiki.gentoo.org/wiki/Handbook:AMD64

Set your -march= to the oldest architechture you might use, and your
-mtune= to the fanciest architecture you might use. Also, -O2 and
-pipe. Eg., if we want a Gentoo to work on a based Thinkpad and on a
fancy gamerboy machine:

CFLAGS="-march=core2 -mtune=skylake -O2 -pipe
CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 sse4_1 ssse3" # common flags between core2 and skylake

MAKEOPTS="-j2 -l2" is great for a two-core machine. But what if we want 8 threads when on an 8-core machine? I present the script, wrap-8-core-kludge.

#!/bin/sh
sed -i 's/-j[0-9] -l[0-9]/-j8 -l8/' /etc/portage/make.conf
sed -i 's/--jobs=[0-9] --load-average=[0-9]/--jobs=8 --load-average=8/' /etc/portage/make.conf

"$@"

sed -i 's/-j8 -l8/-j2 -l2/' /etc/portage/make.conf
sed -i 's/--jobs=[0-9] --load-average=[0-9]/--jobs=2 --load-average=2/' /etc/portage/make.conf

Call it with wrap-8-core-kludge emerge --ask vim when on the fancy machine.

Don't fuck up your profile: choose the latest hardened multilib. Don't switch!

Use the Zen kernel (it's the kernel config intended for desktops).

Don't build modules into your kernel, which is annoying, edit
/etc/conf.d with the modules you need instead. This is no different
than how it is normally done in other distros.

Fancy GPU owners: watch out for NVIDIA. Consider using nouveau if the nvidia
drives don't work and crash your Xorg for example.