How would I make use of the countless hours I have already invested in this piece of software? Countless keywords and the dark magic of the ever changing syntax.
But when it works it works..
Background: I just switched to Ubuntu 22.04 for my daily use (mostly coding for side projects) but TBH I'm just using it as Windows. I use a Macbook Pro for work and know a bit of shell scripting, some Python, a bit of C and C++. Basically your typical incompetent software developer.
There are other tools in the same space like buildroot, but I would personally tend to recommend LFS to start from the fundamentals and work up, yes.
That sounds like sunk-cost fallacy. What if you switch jobs and they use something else that just works without needing dark magic syntax? If it's the best tool then so be it, but I question your reason for clinging to it.