very simple hello, world in x86_64 (aka, x64) assembly for macOS
you'll need nasm and the Xcode Command Line Tools.
to install nasm:
$ brew install nasm
then you can build the executables!
$ make
hello, world using printf
$ ./hello
hello ✨
hello, world using syscalls only
$ ./helloraw
hello ✨
hello, name
$ ./helloname
what's your name? sparkles
hello, sparkles ✨