Started applying my new #LuaLaTeX package "lua-simple-wrap" to the small-format version of ‘Form & Number: A History of Mathematical Beauty’.
Previously, various figures that were placed in the margin of the large format (using my package "marginalia" [https://ctan.org/pkg/marginalia]) were placed as normal figures in the small format, but they often looked awkwardly small (see 1st attached image). I have started using "lua-simple-wrap" to place many of them at the side of the page with the text wrapped around them (see 2nd attached image).
The advantage of "lua-simple-wrap" over other packages for wrapping text is that the code for each figure is placed at the same natural point in the paragraph as in the large-format version. This is important because the different versions are built from the same source by changing a global setting.
‘Form & Number’ (#OA as always): https://archive.org/details/cain_formandnumber_ebook_large (large format); https://archive.org/details/cain_formandnumber_ebook_small (small format)
"lua-simple-wrap" Git repository: https://codeberg.org/ajcain/lua-simple-wrap (still in development, not yet available on CTAN)

