> very little difference between one distro an another
These days the differences come down to systemd or no systemd. I joke that we should refer to it all as SystemD/Linux (akin to how "GNU/Linux" was used).
I did the LFS build with SysV init scripts. I think there is a systemd version of LFS. LFS was a good learning exercise to see generally how everything was put together. I wouldn't want to manually manage all of this myself.
If you look at the LFS compile instructions for each package they are essentially the same as the PKGBUILDs scripts in Arch, I suspect it is similar with Gentoo, Void or any other similar Linux distro.
These days the differences come down to systemd or no systemd. I joke that we should refer to it all as SystemD/Linux (akin to how "GNU/Linux" was used).