diff --git a/home-manager/modules/programs/devel.nix b/home-manager/modules/programs/devel.nix
index 02286b3..125958f 100644
--- a/home-manager/modules/programs/devel.nix
+++ b/home-manager/modules/programs/devel.nix
@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  inputs',
   ...
 }:
 
@@ -15,6 +16,10 @@
     nix-du
     sops
     hut
+    # Markdown
+    cmark-gfm
+    pandoc
+    mdbook
   ];
   programs = {
     direnv.enable = true;
diff --git a/nixos/modules/base.nix b/nixos/modules/base.nix
index c40588c..8dd8681 100644
--- a/nixos/modules/base.nix
+++ b/nixos/modules/base.nix
@@ -20,7 +20,7 @@
     neovim
     git
     tmux
-    nixfmt-rfc-style
+    alejandra
     nix-index
   ];