mistersupafly

Hi, I have a question quite related to this one: The scenario is the following: Customer pays me (freelance) to build a website. I use GSAP in the website. I deliver the website as a package, ex. already installed on their server. That customer will never edit, maintain, touch the code. However, that customer will charge their users to use the site (whatever service it is). In this case, can I use the free licence? If not, which one should be acquired and by who (that customer, me, or both)? Thank you!