Hackathons are about making and finishing something. That’s the whole premise: Instead of spending months working on a personal project that goes nowhere, give yourself a time constraint so you’re forced to finish something. Now you have something concrete to put on your portfolio (even if it’s still a proof-of-concept) - plus you’ve probably learned a lot.
Setting up config files for a tool is not making something. That’s like if I spent hours setting up my IDE, build processes, a CI/CD pipeline, and even unit tests. That might be cool and enhance my productivity down the line. But I still haven’t made anything.