Help I compile and the deprecated functions do not output

hello ,
I compile and the deprecated functions do not output .
my fonction use mmap
I am in the process of migrating with std.Io.File ???

16.0 dev.
too many deprecated
std.fs.FILE, std.fs.Dir , stdout
migrated Dir is not a problem
open File is not a problem
but then I can’t use read/write
as for stdout, once declared, I can’t go any further

We’ll need to write up some documentation.

And I don’t see how to use all this with a terminal…