diff --git a/data/category-dev b/data/category-dev
index 182c53db..ac2db24c 100644
--- a/data/category-dev
+++ b/data/category-dev
@@ -37,6 +37,7 @@ include:kubernetes
 include:microsoft-dev
 include:mongodb
 include:nginx
+include:nixos
 include:openwrt
 include:perl
 include:polymer
@@ -123,7 +124,6 @@ neovim.io
 netfilter.org
 newpipe.net
 nftables.org
-nixos.org
 nodesource.com
 notepad-plus-plus.org
 openresty.org
diff --git a/data/nixos b/data/nixos
new file mode 100644
index 00000000..7797d8bd
--- /dev/null
+++ b/data/nixos
@@ -0,0 +1,16 @@
+nix.dev
+nix.store
+nixcon.org
+nixcon2017.org
+nixlang.com
+nixos.org
+nixpkgs.org
+
+# Unofficial
+
+full:nix-community.github.io
+
+builtwithnix.org
+mynixos.com
+nix-community.org
+nixos.wiki