diff --git a/.config/bash/module/Nix.sh b/.config/bash/module/Nix.sh
index d1c61cd..13324ab 100644
--- a/.config/bash/module/Nix.sh
+++ b/.config/bash/module/Nix.sh
@@ -1,6 +1,6 @@
 # Find Nix package path.
-# Usage: find_nix <PACKAGE>
-function find_nix() {
+# Usage: nix_find <PACKAGE>
+function nix_find() {
 	local IFS=$'\n'
 	local package="${1}"
 
diff --git a/.config/linux/nix/desktop/configuration.nix b/.config/linux/nix/desktop/configuration.nix
index 728803e..d553e0b 100644
--- a/.config/linux/nix/desktop/configuration.nix
+++ b/.config/linux/nix/desktop/configuration.nix
@@ -1,5 +1,6 @@
 { config, pkgs, ... }:
 
+# Help: man configuration.nix or https://nixos.org/nixos/options.html
 {
 	imports = [
 		./hardware-configuration.nix
@@ -151,11 +152,6 @@
 	# Nix.
 	nixpkgs.config.allowUnfree = true;
 
-	# This value determines the NixOS release from which the default
-	# settings for stateful data, like file locations and database versions
-	# on your system were taken. It‘s perfectly fine and recommended to leave
-	# this value at the release version of the first install of this system.
-	# Before changing this value read the documentation for this option
-	# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-	system.stateVersion = "23.11"; # Did you read the comment?
+	# Do not touch ever.
+	system.stateVersion = "23.11";
 }
diff --git a/.doc/Bash.md b/.doc/Bash.md
index 99d75b7..c53ddcf 100644
--- a/.doc/Bash.md
+++ b/.doc/Bash.md
@@ -134,7 +134,7 @@ Command|Description
 
 Command|Description
 ---|---
-`export_java [VERSION]`|Set java version. Sets to latest when not specified. 
+`export_java <VERSION>`|Set java version. Sets to latest when not specified. 
 
 ## Ffmpeg.
 
@@ -250,6 +250,12 @@ Command|Description
 ---|---
 `ncdu [DIRS]`|Search only on current filesystem. Current dir by default. 
 
+## Nix.
+
+Command|Description
+---|---
+`nix_find <PACKAGE>`|Find Nix package path. 
+
 ## Notify.
 
 Command|Description