Hi! Which was the practical reason to use cpp11 for the R package?
I ask because now I'm in the process of creating a fork of fixest that uses cpp11 mostly due to license legal stuff, but I'm having major problems trying to "translate" this function https://github.com/pachadotdev/fixest/blob/cpp11/src/06_03_quf_tables.cpp#L112-L416 from Rcpp to cpp11.
The original function is https://github.com/pachadotdev/fixest/blob/master/src/quf.cpp#L857-L1157, which creates a vector of vectors (a matrix?), something that cpp11 can't understand as I wrote here https://github.com/pachadotdev/fixest/issues/18
Best,
