Should I implement Devops on a small project. Is it too big for it?
The question you need to answer is "would I find it entertaining to set up a CI/CD environment if not to learn from it then just for the fun of it?".
You may not need it at this point in your project or it may benefit you. That I can't tell from the limited information. Linux started as a personal project, too. I set up something similar for my own pet project and I've gotta admit I feel a little bit proud every time I compile and deploy with a single click.

Should you implement it? That's for you to decide.