diff --git a/.gitignore b/.gitignore
index 1377554..57f1248 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 *.swp
+doc/memo.1
diff --git a/doc/memo.1 b/doc/memo.1
deleted file mode 100644
index e4c029f..0000000
--- a/doc/memo.1
+++ /dev/null
@@ -1,112 +0,0 @@
-.\" Text automatically generated by txt2man
-.TH memo 1 "10 August 2018" "doc" "Linux Reference Manual"
-.SH NAME
-\fBmemo
-\fB
-.SH SYNOPSIS
-.nf
-.fam C
-\fBmemo\fP <command> [\fIarguments\fP]
-
-.fam T
-.fi
-.fam T
-.fi
-.SH DESCRIPTION
-A tool to memorize stuff.
-It saves files $MEMO_DIR ($HOME/\fBmemo\fP by default).
-The structure is $MEMO_DIR/<topic>/memo.md
-You can also copy files in the topic folder as well.
-.PP
-We call the folder $MEMO_DIR/<topic> a 'topic folder'.
-.RE
-.PP
-
-.SH COMMANDS
-.TP
-.B
-add <topic> [text]
-adds text to the memo.md in the topic folder.
-if text is not given it will read from stdin.
-.TP
-.B
-rm <topic>
-remove $MEMO_DIR/topic folder with all it's content.
-.TP
-.B
-copy <topic> <file-to-copy>
-copy a file to the topic folder.
-.TP
-.B
-search <term-to-search>
-search for a term in $MEMO_DIR using ack.
-.TP
-.B
-show <topic>
-shows memo.md in the topic folder.
-also showes a list of all files in the topic folder
-.TP
-.B
-edit <topic>
-opens your favorite editor to edit the \fBmemo\fP topic
-.TP
-.B
-list
-prints a list of all topics.
-.TP
-.B
-git <command>
-run git command in $MEMO_DIR.
-Once $MEMO_DIR is a git repository all \fBmemo\fP commands create commits.
-.RE
-.PP
-
-
-.SH CONFIGURATION
-
-.TP
-.B
-$MEMO_DIR
-holds the folder where to store the \fBmemo\fP files.
-Default is $HOME/\fBmemo\fP
-.TP
-.B
-$EDITOR
-Your favorite editor. Must be set for the edit command
-.SH EXAMPLE
-
-
-Append the string "A search-engine" to the memo.md file
-in the topic "google".
-.PP
-.nf
-.fam C
-    $> memo add google A search-engine
-
-.fam T
-.fi
-Appends the content of "www.google.com" to the memo.md file
-the topic "google".
-.PP
-.nf
-.fam C
-    $> curl www.google.com | memo add google
-
-.fam T
-.fi
-Copy the "Invoice.pdf" file to the "lawsuit" topic.
-.PP
-.nf
-.fam C
-    $> memo copy lawsuit ~/Downloads/Invoice.pdf
-
-.fam T
-.fi
-Make $MEMO_DIR a git repository. 
-.PP
-.nf
-.fam C
-    $> memo git init
-
-
-
diff --git a/doc/memo.1.md b/doc/memo.1.md
new file mode 100644
index 0000000..2b75d90
--- /dev/null
+++ b/doc/memo.1.md
@@ -0,0 +1,71 @@
+% memo
+%
+% 10 August 2018
+
+# NAME
+memo
+
+# SYNOPSIS
+`memo <command> [arguments]`
+
+# DESCRIPTION
+A tool to memorize stuff.
+It saves files `$MEMO_DIR` (`$HOME/memo` by default).
+The structure is `$MEMO_DIR/<topic>/memo.md`
+You can also copy files in the topic folder as well.
+
+We call the folder `$MEMO_DIR/<topic>` a 'topic folder'.
+
+# COMMANDS
+
+`add <topic> [text]`
+: Adds text to the `memo.md` in the topic folder. If text is not given it will read from stdin.
+
+`rm <topic>`
+: Remove `$MEMO_DIR/topic` folder with all its content.
+
+`copy <topic> <file-to-copy>`
+: Copy a file to the topic folder.
+
+`search <term-to-search>`
+: Search for a term in `$MEMO_DIR` using `ack`.
+
+`show <topic>`
+: Shows `memo.md` in the topic folder. Also shows a list of all files in the topic folder.
+
+`edit <topic>`
+: Opens your favorite editor to edit the memo topic.
+
+`list`
+: Prints a list of all topics.
+
+`git <command>`
+: Run a git command in `$MEMO_DIR`. Once `$MEMO_DIR` is a git repository, all memo commands create commits.
+
+# CONFIGURATION
+
+`$MEMO_DIR`
+: holds the folder where to store the memo files. Default is `$HOME/memo`.
+
+`$EDITOR`
+: Your favorite editor. Must be set for the edit command.
+
+# EXAMPLE
+
+Append the string "A search-engine" to the `memo.md` file
+in the topic "google".
+
+    $ memo add google A search-engine
+
+Appends the content of `www.google.com` to the `memo.md` file
+the topic "google".
+
+    $ curl www.google.com | memo add google
+
+Copy the "Invoice.pdf" file to the "lawsuit" topic.
+
+    $ memo copy lawsuit ~/Downloads/Invoice.pdf
+
+Make `$MEMO_DIR` a git repository.
+
+    $ memo git init
diff --git a/doc/memo.txt b/doc/memo.txt
deleted file mode 100644
index 0a141a0..0000000
--- a/doc/memo.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-NAME
-  memo
-
-SYNOPSIS
-  memo <command> [arguments]
-
-DESCRIPTION
-  A tool to memorize stuff.
-  It saves files $MEMO_DIR ($HOME/memo by default).
-  The structure is $MEMO_DIR/<topic>/memo.md
-  You can also copy files in the topic folder as well.
-
-  We call the folder $MEMO_DIR/<topic> a 'topic folder'.
-
-
-COMMANDS
-  add <topic> [text]      adds text to the memo.md in the topic folder.
-                          if text is not given it will read from stdin.
-
-  rm <topic>    remove $MEMO_DIR/topic folder with all it's content.
-
-  copy <topic> <file-to-copy>     copy a file to the topic folder.
-
-  search <term-to-search>         search for a term in $MEMO_DIR using ack.
-
-  show <topic>    shows memo.md in the topic folder.
-                  also showes a list of all files in the topic folder
-
-  edit <topic>    opens your favorite editor to edit the memo topic
-
-  list            prints a list of all topics.
-
-  git <command>   run git command in $MEMO_DIR.
-                  Once $MEMO_DIR is a git repository all memo commands create commits.
-
-
-
-CONFIGURATION
-
-  $MEMO_DIR   holds the folder where to store the memo files.
-              Default is $HOME/memo
-
-  $EDITOR     Your favorite editor. Must be set for the edit command
-
-EXAMPLE
-
-
-  Append the string "A search-engine" to the memo.md file
-  in the topic "google".
-
-    $> memo add google A search-engine
-
-  Appends the content of "www.google.com" to the memo.md file
-  the topic "google".
-
-    $> curl www.google.com | memo add google
-
-  Copy the "Invoice.pdf" file to the "lawsuit" topic.
-
-    $> memo copy lawsuit ~/Downloads/Invoice.pdf
-
-  Make $MEMO_DIR a git repository. 
-
-    $> memo git init
-
-
-
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..acf295d
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,13 @@
+{ pkgs ? import <nixpkgs> {} }:
+let manPath = doc/memo.1;
+in pkgs.stdenv.mkDerivation {
+  name = "memo";
+  buildInputs = [
+    (pkgs.writeShellScriptBin "make-man" ''
+      ${pkgs.pandoc}/bin/pandoc --standalone --to man -o ${toString manPath} doc/memo.1.md
+    '')
+    (pkgs.writeShellScriptBin "view-man" ''
+      ${pkgs.man-db}/bin/man ${toString manPath}
+    '')
+  ];
+}