7zip: how to convert Linux SFX archives to Windows SFX?

It doesn't seem to be distributed with the Arch Linux package, but copying the file "C:Program Files7-Zip7z.sfx" to my Linux machine allowed the creation of a Windows SFX archives with

7z a -t7z -m0=lzma2 -mx=9 -mfb=64 -md=64m -ms=on -sfx7z.sfx -pXXXXXX "dest-archive.exe" "source-folder/"

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Running

cat 7z.sfx old-linux-archive.exe > new-windows-archive.exe

allowed to prepend the Windows stub to the Linux one, without the need to recompress the archive:

file old-linux-archive.exe
#old-linux-archive.exe: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=e0e81cea3791be68cca1d95da39fbb406b506cd4, for GNU/Linux 3.2.0, stripped

file new-windows-archive.exe
#new-windows-archive.exe: PE32 executable (GUI) Intel 80386, for MS Windows