How does tada located the todo.txt file? Does it support multiple todo.txt files?

[flyisland]

I would like to have a todo.txt file for each of my projects. I hope this todo.txt file is located in the project's root folder. What should I do?

[xgpt]

from the README.md:

You can use environment variables TODO_FILE and DONE_FILE to point to different files, or use command-line flags for the same. The TODO_DIR environment variable also exists and affects both files.