aider/website/docs/config.md

nav_order	has_children	description
55	true	Information on all of aider's settings and how to use them.

Configuration

Aider has many options which can be set with command line switches. Most options can also be set in an .aider.conf.yml file which can be placed in your home directory or at the root of your git repo. Or by setting environment variables like AIDER_xxx either in your shell or a .env file.

Here are 4 equivalent ways of setting an option.

With a command line switch:

$ aider --dark-mode

Using a .aider.conf.yml file:

dark-mode: true

By setting an environgment variable:

export AIDER_DARK_MODE=true

Using an .env file:

AIDER_DARK_MODE=true