Is https://openwrt.org/docs/techref/image.makefile still up-to-date?
The page starts with
FIXME This section is new and deliberately not linked too by other pages yet. once a person of some experience has a chance to look over this they may then choose to add it.
Nobody ever looked over this page, nobody linked it from other pages.
page has been created in 2012, no edits since then
WIP tag set since 2012
A 7 years old WIP page... does it still provide correct and usable information that is worth keeping in the wiki?