step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install libyaml

xcpkg install libyaml

xcpkg formula view libyaml

{{ formula }}

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

xcpkg formula edit libyaml

after editing, you may want to rebuild this package ⤵︎

xcpkg install libyaml