I follow https://www.youtube.com/watch?v=82oFmY-Qeok
for stream large file because we don't want copy all file content to RAM.
and then i just want to try broadcast to all node.
terminal tab1: make client1
terminal tab2: make client2
terminal tab3: make server
terminal tab4: make clean [ for delete folder just created. ]
NOTE: if error use make clean first