step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install toml

xcpkg install toml  

xcpkg formula view toml  

{{ formula }}

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

xcpkg formula edit toml  

after editing, you may want to rebuild this package ⤵︎

xcpkg install toml