From a289b99c77130a63655f2f8325af80d22fcc108a Mon Sep 17 00:00:00 2001
From: jethrokuan <jethrokuan95@gmail.com>
Date: Sun, 19 Jul 2020 04:38:24 +0000
Subject: [PATCH] =?UTF-8?q?Deploying=20to=20gh-pages=20from=20=20@=20eb7ee?=
 =?UTF-8?q?0ef6c9d46c45f33a92d8995ca89850e82af=20=F0=9F=9A=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...Browsing-History-with-winner_002dmode.html |  4 +-
 manual/Diagnosing-and-Repairing-Files.html    |  4 +-
 manual/Ecosystem.html                         | 10 +--
 ..._002dtext-search-interface-with-Deft.html} | 19 ++---
 manual/Note_002dtaking-Add_002dons.html       |  2 +-
 manual/Org_002djournal.html                   |  6 +-
 manual/Versioning-Notes.html                  | 85 +++++++++++++++++++
 manual/index.html                             | 11 ++-
 org-roam.org                                  | 21 +++--
 org-roam.texi                                 | 31 +++++--
 10 files changed, 153 insertions(+), 40 deletions(-)
 rename manual/{Deft.html => Full_002dtext-search-interface-with-Deft.html} (82%)
 create mode 100644 manual/Versioning-Notes.html

diff --git a/manual/Browsing-History-with-winner_002dmode.html b/manual/Browsing-History-with-winner_002dmode.html
index 5fab219..9ecd9ac 100644
--- a/manual/Browsing-History-with-winner_002dmode.html
+++ b/manual/Browsing-History-with-winner_002dmode.html
@@ -25,7 +25,7 @@ General Public License for more details.
 <link href="index.html#Top" rel="start" title="Top">
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
 <link href="Ecosystem.html#Ecosystem" rel="up" title="Ecosystem">
-<link href="Deft.html#Deft" rel="next" title="Deft">
+<link href="Versioning-Notes.html#Versioning-Notes" rel="next" title="Versioning Notes">
 <link href="Ecosystem.html#Ecosystem" rel="prev" title="Ecosystem">
 <style type="text/css">
 <!--
@@ -63,7 +63,7 @@ ul.no-bullet {list-style: none}
 <a name="Browsing-History-with-winner_002dmode"></a>
 <div class="header">
 <p>
-Next: <a href="Deft.html#Deft" accesskey="n" rel="next">Deft</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
+Next: <a href="Versioning-Notes.html#Versioning-Notes" accesskey="n" rel="next">Versioning Notes</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
 </div>
 <hr>
 <a name="Browsing-History-with-winner_002dmode-1"></a>
diff --git a/manual/Diagnosing-and-Repairing-Files.html b/manual/Diagnosing-and-Repairing-Files.html
index 5eede65..1dfb9bd 100644
--- a/manual/Diagnosing-and-Repairing-Files.html
+++ b/manual/Diagnosing-and-Repairing-Files.html
@@ -81,7 +81,9 @@ org-roam-doctor</code>, but note that this may take some time.
 the check only for the current buffer.
 </p></li></ul>
 
-<p>The checks run are defined in <code>org-roam-doctor--checkers</code>. Each checker is an instance of <code>org-roam-doctor-checker</code>. To define a checker, use <code>make-org-roam-doctor-checker</code>. Here is a sample definition:
+<p>The checks run are defined in <code>org-roam-doctor--checkers</code>. Each checker is an
+instance of <code>org-roam-doctor-checker</code>. To define a checker, use
+<code>make-org-roam-doctor-checker</code>. Here is a sample definition:
 </p>
 <div class="lisp">
 <pre class="lisp">(make-org-roam-doctor-checker
diff --git a/manual/Ecosystem.html b/manual/Ecosystem.html
index bce3ec2..ef87d1e 100644
--- a/manual/Ecosystem.html
+++ b/manual/Ecosystem.html
@@ -69,16 +69,16 @@ Previous: <a href="Note_002dtaking-Workflows.html#Note_002dtaking-Workflows" acc
 <a name="Ecosystem-1"></a>
 <h3 class="section">16.2 Ecosystem</h3>
 
-<p>A number of packages work well combined with Org-Roam:
-</p>
 <table class="menu" border="0" cellspacing="0">
 <tr><td align="left" valign="top">&bull; <a href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode" accesskey="1">Browsing History with winner-mode</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Deft.html#Deft" accesskey="2">Deft</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Versioning-Notes.html#Versioning-Notes" accesskey="2">Versioning Notes</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Org_002djournal.html#Org_002djournal" accesskey="3">Org-journal</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft" accesskey="3">Full-text search interface with Deft</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons" accesskey="4">Note-taking Add-ons</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Org_002djournal.html#Org_002djournal" accesskey="4">Org-journal</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons" accesskey="5">Note-taking Add-ons</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 </table>
 
diff --git a/manual/Deft.html b/manual/Full_002dtext-search-interface-with-Deft.html
similarity index 82%
rename from manual/Deft.html
rename to manual/Full_002dtext-search-interface-with-Deft.html
index 096559b..372e523 100644
--- a/manual/Deft.html
+++ b/manual/Full_002dtext-search-interface-with-Deft.html
@@ -15,10 +15,10 @@ General Public License for more details.
 <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Deft (Org-roam User Manual)</title>
+<title>Full-text search interface with Deft (Org-roam User Manual)</title>
 
-<meta name="description" content="Deft (Org-roam User Manual)">
-<meta name="keywords" content="Deft (Org-roam User Manual)">
+<meta name="description" content="Full-text search interface with Deft (Org-roam User Manual)">
+<meta name="keywords" content="Full-text search interface with Deft (Org-roam User Manual)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="makeinfo">
@@ -26,7 +26,7 @@ General Public License for more details.
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
 <link href="Ecosystem.html#Ecosystem" rel="up" title="Ecosystem">
 <link href="Org_002djournal.html#Org_002djournal" rel="next" title="Org-journal">
-<link href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode" rel="prev" title="Browsing History with winner-mode">
+<link href="Versioning-Notes.html#Versioning-Notes" rel="prev" title="Versioning Notes">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
@@ -60,17 +60,16 @@ ul.no-bullet {list-style: none}
 </head>
 
 <body lang="en">
-<a name="Deft"></a>
+<a name="Full_002dtext-search-interface-with-Deft"></a>
 <div class="header">
 <p>
-Next: <a href="Org_002djournal.html#Org_002djournal" accesskey="n" rel="next">Org-journal</a>, Previous: <a href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode" accesskey="p" rel="prev">Browsing History with winner-mode</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
+Next: <a href="Org_002djournal.html#Org_002djournal" accesskey="n" rel="next">Org-journal</a>, Previous: <a href="Versioning-Notes.html#Versioning-Notes" accesskey="p" rel="prev">Versioning Notes</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
 </div>
 <hr>
-<a name="Deft-1"></a>
-<h4 class="subsection">16.2.2 Deft</h4>
+<a name="Full_002dtext-search-interface-with-Deft-1"></a>
+<h4 class="subsection">16.2.3 Full-text search interface with Deft</h4>
 
-<p><a href="https://jblevins.org/projects/deft/">Deft</a> provides a nice interface
-for browsing and filtering org-roam notes.
+<p><a href="https://jblevins.org/projects/deft/">Deft</a> provides a nice interface for browsing and filtering org-roam notes.
 </p>
 <div class="lisp">
 <pre class="lisp">(use-package deft
diff --git a/manual/Note_002dtaking-Add_002dons.html b/manual/Note_002dtaking-Add_002dons.html
index 1b51a6d..bc1a85f 100644
--- a/manual/Note_002dtaking-Add_002dons.html
+++ b/manual/Note_002dtaking-Add_002dons.html
@@ -67,7 +67,7 @@ Previous: <a href="Org_002djournal.html#Org_002djournal" accesskey="p" rel="prev
 </div>
 <hr>
 <a name="Note_002dtaking-Add_002dons-1"></a>
-<h4 class="subsection">16.2.4 Note-taking Add-ons</h4>
+<h4 class="subsection">16.2.5 Note-taking Add-ons</h4>
 
 <p>These are some plugins that make note-taking in Org-mode more enjoyable.
 </p>
diff --git a/manual/Org_002djournal.html b/manual/Org_002djournal.html
index e54a616..24d83ca 100644
--- a/manual/Org_002djournal.html
+++ b/manual/Org_002djournal.html
@@ -26,7 +26,7 @@ General Public License for more details.
 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
 <link href="Ecosystem.html#Ecosystem" rel="up" title="Ecosystem">
 <link href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons" rel="next" title="Note-taking Add-ons">
-<link href="Deft.html#Deft" rel="prev" title="Deft">
+<link href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft" rel="prev" title="Full-text search interface with Deft">
 <style type="text/css">
 <!--
 a.summary-letter {text-decoration: none}
@@ -63,11 +63,11 @@ ul.no-bullet {list-style: none}
 <a name="Org_002djournal"></a>
 <div class="header">
 <p>
-Next: <a href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons" accesskey="n" rel="next">Note-taking Add-ons</a>, Previous: <a href="Deft.html#Deft" accesskey="p" rel="prev">Deft</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
+Next: <a href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons" accesskey="n" rel="next">Note-taking Add-ons</a>, Previous: <a href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft" accesskey="p" rel="prev">Full-text search interface with Deft</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
 </div>
 <hr>
 <a name="Org_002djournal-1"></a>
-<h4 class="subsection">16.2.3 Org-journal</h4>
+<h4 class="subsection">16.2.4 Org-journal</h4>
 
 <p><a href="https://github.com/bastibe/org-journal">Org-journal</a> is a more
 powerful alternative to the simple function <code>org-roam-dailies-today</code>. It
diff --git a/manual/Versioning-Notes.html b/manual/Versioning-Notes.html
new file mode 100644
index 0000000..e39a7e8
--- /dev/null
+++ b/manual/Versioning-Notes.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Copyright (C) 2020-2020 Jethro Kuan <jethrokuan95@gmail.com>
+
+You can redistribute this document and/or modify it under the terms
+of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any
+later version.
+
+This document is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+ -->
+<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title>Versioning Notes (Org-roam User Manual)</title>
+
+<meta name="description" content="Versioning Notes (Org-roam User Manual)">
+<meta name="keywords" content="Versioning Notes (Org-roam User Manual)">
+<meta name="resource-type" content="document">
+<meta name="distribution" content="global">
+<meta name="Generator" content="makeinfo">
+<link href="index.html#Top" rel="start" title="Top">
+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
+<link href="Ecosystem.html#Ecosystem" rel="up" title="Ecosystem">
+<link href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft" rel="next" title="Full-text search interface with Deft">
+<link href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode" rel="prev" title="Browsing History with winner-mode">
+<style type="text/css">
+<!--
+a.summary-letter {text-decoration: none}
+blockquote.indentedblock {margin-right: 0em}
+blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
+blockquote.smallquotation {font-size: smaller}
+div.display {margin-left: 3.2em}
+div.example {margin-left: 3.2em}
+div.lisp {margin-left: 3.2em}
+div.smalldisplay {margin-left: 3.2em}
+div.smallexample {margin-left: 3.2em}
+div.smalllisp {margin-left: 3.2em}
+kbd {font-style: oblique}
+pre.display {font-family: inherit}
+pre.format {font-family: inherit}
+pre.menu-comment {font-family: serif}
+pre.menu-preformatted {font-family: serif}
+pre.smalldisplay {font-family: inherit; font-size: smaller}
+pre.smallexample {font-size: smaller}
+pre.smallformat {font-family: inherit; font-size: smaller}
+pre.smalllisp {font-size: smaller}
+span.nolinebreak {white-space: nowrap}
+span.roman {font-family: initial; font-weight: normal}
+span.sansserif {font-family: sans-serif; font-weight: normal}
+ul.no-bullet {list-style: none}
+-->
+</style>
+<link rel="stylesheet" type="text/css" href="assets/page.css">
+
+
+</head>
+
+<body lang="en">
+<a name="Versioning-Notes"></a>
+<div class="header">
+<p>
+Next: <a href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft" accesskey="n" rel="next">Full-text search interface with Deft</a>, Previous: <a href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode" accesskey="p" rel="prev">Browsing History with winner-mode</a>, Up: <a href="Ecosystem.html#Ecosystem" accesskey="u" rel="up">Ecosystem</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
+</div>
+<hr>
+<a name="Versioning-Notes-1"></a>
+<h4 class="subsection">16.2.2 Versioning Notes</h4>
+
+<p>Since Org-roam notes are just plain text, it is trivial to track changes in your
+notes database using version control systems such as <a href="https://git-scm.com/">Git</a>. Simply initialize
+<code>org-roam-directory</code> as a Git repository, and commit your files at regular or
+appropriate intervals. <a href="https://magit.vc/">Magit</a> is a great interface to Git within Emacs.
+</p>
+<p>In addition, it may be useful to observe how a particular note has evolved, by
+looking at the file history. <a href="https://gitlab.com/pidu/git-timemachine">Git-timemachine</a> allows you to visit historic
+versions of a tracked Org-roam note.
+</p>
+
+
+
+</body>
+</html>
diff --git a/manual/index.html b/manual/index.html
index 3459d81..3795ac7 100644
--- a/manual/index.html
+++ b/manual/index.html
@@ -128,9 +128,10 @@ ul.no-bullet {list-style: none}
     <li><a name="toc-Ecosystem-1" href="Ecosystem.html#Ecosystem">16.2 Ecosystem</a>
     <ul class="no-bullet">
       <li><a name="toc-Browsing-History-with-winner_002dmode-1" href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode">16.2.1 Browsing History with winner-mode</a></li>
-      <li><a name="toc-Deft-1" href="Deft.html#Deft">16.2.2 Deft</a></li>
-      <li><a name="toc-Org_002djournal-1" href="Org_002djournal.html#Org_002djournal">16.2.3 Org-journal</a></li>
-      <li><a name="toc-Note_002dtaking-Add_002dons-1" href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons">16.2.4 Note-taking Add-ons</a>
+      <li><a name="toc-Versioning-Notes-1" href="Versioning-Notes.html#Versioning-Notes">16.2.2 Versioning Notes</a></li>
+      <li><a name="toc-Full_002dtext-search-interface-with-Deft-1" href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft">16.2.3 Full-text search interface with Deft</a></li>
+      <li><a name="toc-Org_002djournal-1" href="Org_002djournal.html#Org_002djournal">16.2.4 Org-journal</a></li>
+      <li><a name="toc-Note_002dtaking-Add_002dons-1" href="Note_002dtaking-Add_002dons.html#Note_002dtaking-Add_002dons">16.2.5 Note-taking Add-ons</a>
       <ul class="no-bullet">
         <li><a name="toc-Org_002ddownload-1" href="Org_002ddownload.html#Org_002ddownload">Org-download</a></li>
         <li><a name="toc-mathpix_002eel" href="mathpixel.html#mathpixel">mathpix.el</a></li>
@@ -300,7 +301,9 @@ Ecosystem
 
 </pre></th></tr><tr><td align="left" valign="top">&bull; <a href="Browsing-History-with-winner_002dmode.html#Browsing-History-with-winner_002dmode">Browsing History with winner-mode</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Deft.html#Deft">Deft</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+<tr><td align="left" valign="top">&bull; <a href="Versioning-Notes.html#Versioning-Notes">Versioning Notes</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
+</td></tr>
+<tr><td align="left" valign="top">&bull; <a href="Full_002dtext-search-interface-with-Deft.html#Full_002dtext-search-interface-with-Deft">Full-text search interface with Deft</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
 <tr><td align="left" valign="top">&bull; <a href="Org_002djournal.html#Org_002djournal">Org-journal</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
 </td></tr>
diff --git a/org-roam.org b/org-roam.org
index fde3644..6535004 100644
--- a/org-roam.org
+++ b/org-roam.org
@@ -851,7 +851,9 @@ org-roam-doctor~, but note that this may take some time.
   Perform a check on Org-roam files to ensure cleanliness. If THIS-BUFFER, run
   the check only for the current buffer.
 
-The checks run are defined in ~org-roam-doctor--checkers~. Each checker is an instance of ~org-roam-doctor-checker~. To define a checker, use ~make-org-roam-doctor-checker~. Here is a sample definition:
+The checks run are defined in ~org-roam-doctor--checkers~. Each checker is an
+instance of ~org-roam-doctor-checker~. To define a checker, use
+~make-org-roam-doctor-checker~. Here is a sample definition:
 
 #+BEGIN_SRC emacs-lisp
 (make-org-roam-doctor-checker
@@ -920,7 +922,6 @@ General Public License for more details.
 - Videos ::
   - [[https://www.youtube.com/watch?v=RvWic15iXjk][How to Use Roam to Outline a New Article in Under 20 Minutes]]
 ** Ecosystem
-A number of packages work well combined with Org-Roam:
 
 *** Browsing History with winner-mode
 
@@ -934,13 +935,23 @@ A number of packages work well combined with Org-Roam:
   (define-key winner-mode-map (kbd "<M-right>") #'winner-redo)
 
 #+END_SRC
-*** Deft
+*** Versioning Notes
+
+Since Org-roam notes are just plain text, it is trivial to track changes in your
+notes database using version control systems such as [[https://git-scm.com/][Git]]. Simply initialize
+~org-roam-directory~ as a Git repository, and commit your files at regular or
+appropriate intervals. [[https://magit.vc/][Magit]] is a great interface to Git within Emacs.
+
+In addition, it may be useful to observe how a particular note has evolved, by
+looking at the file history. [[https://gitlab.com/pidu/git-timemachine][Git-timemachine]] allows you to visit historic
+versions of a tracked Org-roam note.
+
+*** Full-text search interface with Deft
    :PROPERTIES:
    :CUSTOM_ID: deft
    :END:
 
-[[https://jblevins.org/projects/deft/][Deft]] provides a nice interface
-for browsing and filtering org-roam notes.
+[[https://jblevins.org/projects/deft/][Deft]] provides a nice interface for browsing and filtering org-roam notes.
 
 #+BEGIN_SRC emacs-lisp
   (use-package deft
diff --git a/org-roam.texi b/org-roam.texi
index f065652..e7e7653 100644
--- a/org-roam.texi
+++ b/org-roam.texi
@@ -138,7 +138,8 @@ Appendix
 Ecosystem
 
 * Browsing History with winner-mode::
-* Deft::
+* Versioning Notes::
+* Full-text search interface with Deft::
 * Org-journal::
 * Note-taking Add-ons::
 
@@ -1155,7 +1156,9 @@ Perform a check on Org-roam files to ensure cleanliness. If THIS-BUFFER, run
 the check only for the current buffer.
 @end itemize
 
-The checks run are defined in @code{org-roam-doctor--checkers}. Each checker is an instance of @code{org-roam-doctor-checker}. To define a checker, use @code{make-org-roam-doctor-checker}. Here is a sample definition:
+The checks run are defined in @code{org-roam-doctor--checkers}. Each checker is an
+instance of @code{org-roam-doctor-checker}. To define a checker, use
+@code{make-org-roam-doctor-checker}. Here is a sample definition:
 
 @lisp
 (make-org-roam-doctor-checker
@@ -1246,11 +1249,10 @@ operations. To reduce the number of garbage collection processes, one may set
 @node Ecosystem
 @section Ecosystem
 
-A number of packages work well combined with Org-Roam:
-
 @menu
 * Browsing History with winner-mode::
-* Deft::
+* Versioning Notes::
+* Full-text search interface with Deft::
 * Org-journal::
 * Note-taking Add-ons::
 @end menu
@@ -1269,11 +1271,22 @@ A number of packages work well combined with Org-Roam:
 
 @end lisp
 
-@node Deft
-@subsection Deft
+@node Versioning Notes
+@subsection Versioning Notes
 
-@uref{https://jblevins.org/projects/deft/, Deft} provides a nice interface
-for browsing and filtering org-roam notes.
+Since Org-roam notes are just plain text, it is trivial to track changes in your
+notes database using version control systems such as @uref{https://git-scm.com/, Git}. Simply initialize
+@code{org-roam-directory} as a Git repository, and commit your files at regular or
+appropriate intervals. @uref{https://magit.vc/, Magit} is a great interface to Git within Emacs.
+
+In addition, it may be useful to observe how a particular note has evolved, by
+looking at the file history. @uref{https://gitlab.com/pidu/git-timemachine, Git-timemachine} allows you to visit historic
+versions of a tracked Org-roam note.
+
+@node Full-text search interface with Deft
+@subsection Full-text search interface with Deft
+
+@uref{https://jblevins.org/projects/deft/, Deft} provides a nice interface for browsing and filtering org-roam notes.
 
 @lisp
 (use-package deft