Wonderlust project without jquery

Hello guys first time posting . Is it possible (without too much complexity and without the jquery) to make my own wonderlust project with vanilla js on my own computer ?. I assume that the project on your site is using jquery (because i dont know the syntax and i guess its jquery)
Edit : im on 45% on web dev path and im new to webdevelopement so i only know the js i learned from you guys