I built my LFS around 20 years ago. While I followed instructions most of the time, I built some components myself. I remember that I wrote by own init scripts and I think I wrote my own initramfs (not completely sure about it, but I definitely remember tinkering with it and it probably was LFS).
I also wanted to implement an isolated build system and my own package manager (basically tar wrapper with file database to be able to uninstall, no fancy dependency stuff), but containers were not invented back then and my skills were not good enough to properly utilize fakeroot, so it never was implemented, although I spent some time experimenting. Today I would do it with docker, exciting time.
I also wanted to implement an isolated build system and my own package manager (basically tar wrapper with file database to be able to uninstall, no fancy dependency stuff), but containers were not invented back then and my skills were not good enough to properly utilize fakeroot, so it never was implemented, although I spent some time experimenting. Today I would do it with docker, exciting time.