Garson: Writing a simple router in go, would love to have feedback

Hello guys, I am working on implementing a router on top of net/http, there is nothing fancy about it, and it's my first time to write a router "or a useful package ever [imposter syndrome detected :D]". I hope you guys can give me a feeback on my golang skils and how to improve this little project, I already have wrote some issues that i will be working on, but let's see what you have in mind.