How to host configs on github?

Question

git

Hello, I can’t figure out how to properly host application configs in the git. For example, I am writing some application, it has a config with a token for some service, of course, it is impossible to commit this tconfig. But I can’t help but commit, because nothing will work without it. How to work with it? Commit an empty config without specifying a token? Or write in readme what and how?
Thanks for the clarifications in advance.

Answer 1

Environment variables, files with secret data in the project directory, etc.

Answer 2

Do "overlapping" configs. Commit the default config with the wrong tokens, and when reading, first read from this config, and then read over it from other places, the same environment variables.