I gave LFS a go earlier this year. I learned a lot through the process - but I definitely went outside the guardrails. I use NixOS as my daily driver and found myself curious of whether I could complete LFS using a "Nix" approach. I was only a basic Nix user at that time and that choice made a difficult process much more difficult. However, the declarative nature of Nix meant that I had clear notes of every step of my process - and if something didn't work, I could backtrack and troubleshoot to find the root of the cause. The end result is here [0].
My understanding of Linux, of bootstrapping, cross-compilation, and Nix has grown tremendously as a result of the time I took on this project - and I still go back and reference the work from time to time. When I get some time to revisit the Nix-based LFS project, there are quite a few things I would like to clean-up, including setting kernel configs and handling post-build permissions.
Nix-complexities aside, I highly recommend LFS if you like to understand how things work and don't mind a little suffering along the way.
My understanding of Linux, of bootstrapping, cross-compilation, and Nix has grown tremendously as a result of the time I took on this project - and I still go back and reference the work from time to time. When I get some time to revisit the Nix-based LFS project, there are quite a few things I would like to clean-up, including setting kernel configs and handling post-build permissions.
Nix-complexities aside, I highly recommend LFS if you like to understand how things work and don't mind a little suffering along the way.
[0]: https://github.com/cloudripper/NixLFS