build stack from source without pre-installed stack

[luca ding]

Hi all,

I‘ve been learning stack recently, and I noticed that the newer version of stack can be installed through the pre-installed stack, but how can I install the stack from source if there is no pre-installed stack available? I didn't find the corresponding instructions on the stack official website, did I miss some webs?

any suggestions?

thank you in advance!

luca