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Is anyone as a solution/tutorial, to run my express server for free for a project host in github ?

I made this project using vue for practice after a long break in web development. I wanted to start with a little project and i learned how to create a vue project, deploy it on GitHub (cf https://www.youtube.com/watch?v=yo2bMGnIKE8&ab_channel=LearnVue). It must have been done in a better way certainly and I will enjoy if you give me some advices. Vue for this project was totally useless and it could have been done using only 1 html, 1 css, 1js file, but has i said, it was for practice. I hope you will find it interessting.