step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install yaml-cpp

xcpkg install yaml-cpp

xcpkg formula view yaml-cpp

{{ formula }}

if the formula of yaml-cpp dosn't meet your needs, you can edit it ⤵︎

xcpkg formula edit yaml-cpp

after editing, you may want to rebuild this package ⤵︎

xcpkg install yaml-cpp