diff --git a/README.md b/README.md
index 519d792..7ce0747 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,9 @@ Lightweight and quick file operations without being a full-blown file manager.
 <!-- toc -->
 
 - [Features](#features)
-- [Installation and Setup](#installation-and-setup)
+- [Installation](#installation)
+- [Configuration](#configuration)
+- [Usage](#usage)
 - [Available Commands](#available-commands)
 	* [File Operation Commands](#file-operation-commands)
 	* [Utility Commands](#utility-commands)
@@ -32,7 +34,7 @@ Lightweight and quick file operations without being a full-blown file manager.
   when no extension is given, or the ability to use vim motions in the input
   field.
 
-## Installation and Setup
+## Installation
 
 ```lua
 -- lazy.nvim
@@ -42,8 +44,18 @@ Lightweight and quick file operations without being a full-blown file manager.
 use {"chrisgrieser/nvim-genghis", requires = "stevearc/dressing.nvim"}
 ```
 
-`nvim-genghis` (and `dressing.nvim`) require no `.setup()` function. Just create
-keybindings for the commands you want to use:
+## Configuration
+The `setup` call is optional.
+
+```lua
+-- default config
+require("genghis").setup {
+	-- cli name, default is `trash` on Mac and Windows, and `gio trash` on Linux
+	trashCmd = "trash",
+}
+```
+
+## Usage
 
 ```lua
 local keymap = vim.keymap.set
@@ -84,7 +96,7 @@ The following applies to all commands above:
 ### Utility Commands
 - `.chmodx` or `:Chmodx`: Makes current file executable. Equivalent to `chmod
   +x`.
-- `.trashFile{trashCmd = "your_cli"}` or `:Trash`: Move the current file
+- `.trashFile` or `:Trash`: Move the current file
 to the trash location.
 	* Defaults to `gio trash` on *Linux*, `trash` on *Mac* and *Windows*.
 	* If [bufdelete.nvim](https://github.com/famiu/bufdelete.nvim) is available,
@@ -92,7 +104,7 @@ to the trash location.
 	  intact instead of `vim.cmd.bwipeout`.
 
 > [!NOTE]
-> The trash CLIs are not available by default, and must be installed.
+> The trash CLIs are usually not available by default, and must be installed.
 
 ### Path Copying Commands
 - `.copyFilename` or `:CopyFilename`: Copy the file name.
diff --git a/lua/genghis/config.lua b/lua/genghis/config.lua
new file mode 100644
index 0000000..e5ebf78
--- /dev/null
+++ b/lua/genghis/config.lua
@@ -0,0 +1,17 @@
+local M = {}
+--------------------------------------------------------------------------------
+
+---@class Genghis.config
+local defaultConfig = {
+	trashCmd = nil,
+}
+
+M.config = defaultConfig
+
+---@param userConfig? Genghis.config
+function M.setup(userConfig)
+	M.config = vim.tbl_deep_extend("force", defaultConfig, userConfig or {})
+end
+
+--------------------------------------------------------------------------------
+return M
diff --git a/lua/genghis/init.lua b/lua/genghis/init.lua
index dd4f5c3..9c5159e 100644
--- a/lua/genghis/init.lua
+++ b/lua/genghis/init.lua
@@ -11,6 +11,11 @@ local M = {}
 setmetatable(M, {
 	__index = function(_, key)
 		return function(...)
+			if key == "setup" then
+				require("genghis.config").setup(...)
+				return
+			end
+
 			local module = vim.startswith(key, "copy") and "copy" or "file"
 			require("genghis.operations." .. module)[key](...)
 		end
diff --git a/lua/genghis/operations/file.lua b/lua/genghis/operations/file.lua
index 1bb39d2..9b46857 100644
--- a/lua/genghis/operations/file.lua
+++ b/lua/genghis/operations/file.lua
@@ -190,16 +190,24 @@ function M.chmodx()
 	vim.cmd.edit()
 end
 
----@param opts? { trashCmd: string }
 function M.trashFile(opts)
-	local userCmd = opts and opts.trashCmd
-	local system = vim.uv.os_uname().sysname:lower()
-	local defaultCmd
-	if system == "darwin" then defaultCmd = "trash" end
-	if system:find("windows") then defaultCmd = "trash" end
-	if system:find("linux") then defaultCmd = "gio trash" end
-	local trashCmd = userCmd or defaultCmd
-	assert(defaultCmd, "Unknown operating system. Please provide a custom trashCmd.")
+	---DEPRECATION
+	if opts then
+		u.notify("The `trashCmd` option has been moved to the setup call.", "warn")
+		return 
+	end
+
+	-- user-provided trashCmd or os-specific default
+	local trashCmd = require("genghis.config").config.trashCmd
+	if not trashCmd then
+		local system = vim.uv.os_uname().sysname:lower()
+		local defaultCmd
+		if system == "darwin" then defaultCmd = "trash" end
+		if system:find("windows") then defaultCmd = "trash" end
+		if system:find("linux") then defaultCmd = "gio trash" end
+		assert(defaultCmd, "Unknown operating system. Please provide a custom `trashCmd`.")
+		trashCmd = defaultCmd
+	end
 
 	local trashArgs = vim.split(trashCmd, " ")
 	local oldFilePath = vim.api.nvim_buf_get_name(0)
@@ -210,7 +218,7 @@ function M.trashFile(opts)
 	local result = vim.system(trashArgs):wait()
 	if result.code == 0 then
 		u.bwipeout()
-		u.notify(("%q deleted"):format(oldName))
+		u.notify(("%q deleted."):format(oldName))
 	else
 		local outmsg = (result.stdout or "") .. (result.stderr or "")
 		u.notify(("Trashing %q failed: " .. outmsg):format(oldName), "error")