documentation on paths and environment vars

README.md

@@ -90,6 +90,7 @@ The full syntax and examples can be found [here](docs/cheatsheet_syntax.md).
 You can:
 
 - [setup your own config file](docs/config_file.md)
+- [set custom paths for your config file and cheat sheets](docs/paths_and_environment_variables.md)
 - [change colors](docs/customization.md#changing-colors)
 - [resize columns](docs/customization.md#resizing-columns)
 - [change how search is performed](docs/customization.md#overriding-fzf-options)

docs/paths_and_environment_variables.md

@@ -0,0 +1,21 @@
+# Paths and Environment Variables
+
+Navi uses the [`directories-next`](https://crates.io/crates/directories-next) package, which 
+defines platform-specific standard locations of directories for config, cache and other data.
+
+Mac users, this is why your files are being stored in `~/Library/Application Support/navi`.
+
+To set custom paths for your config and cheat sheets, you can set the following
+environment variables:
+
+```zsh
+export NAVI_CONFIG="~/.config/navi/config.yaml"
+export NAVI_PATH="~/.local/share/navi"
+```
+Note! Even when set, `$NAVI_PATH` will not be used when installing cheat
+sheets directly via navi's own commands. 
+
+For example when running `navi add repo <repo> `~/Library/...` will still be used.
+
+Instead, you may clone repos directly into `$NAVI_PATH`, or write your own 
+manually.