if you want to learn about history, you look at the following posts.
There are two major community: the JP community and the EN community.
Until the advent of the FEBuilderGBA, the two community progressed separately.
Sometimes it was unfortunate due to cultural differences.
Recently, the CN comunity has been producing interesting work and I think there might be a big comunity there as well, but I don’t know much about it because not much information is disseminated.
//The JP community is not very active these days.
I don’t know much about the earliest comminities.
Probably the very first step in FE Hack is cheat codes.
That is, cheat codes that increase your possessions or make your units invincible.
From there, the code has been analysed and various data structures have been found.
Once you know the structure, you develop the technology to modify it to your liking.
This is the same as with technology.
Humans discovered fire and advanced civilisation by controlling it at will.
Once you understand the principles, you can apply them.