diff --git a/.gitignore b/.gitignore
index 717eb68..ec4bc4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,3 +37,6 @@ __pycache__
 .tmp_versions
 Module.symvers
 modules.order
+
+# node.js
+node_modules
diff --git a/index.html b/index.html
index b332b94..e8b5240 100644
--- a/index.html
+++ b/index.html
@@ -1325,7 +1325,15 @@ body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-b
 <li><a href="#interpreted-languages">21.6. Interpreted languages</a>
 <ul class="sectlevel3">
 <li><a href="#python">21.6.1. Python</a></li>
-<li><a href="#node-js">21.6.2. Node.js</a></li>
+<li><a href="#node-js">21.6.2. Node.js</a>
+<ul class="sectlevel4">
+<li><a href="#npm">21.6.2.1. NPM</a>
+<ul class="sectlevel5">
+<li><a href="#npm-data-files">21.6.2.1.1. NPM data-files</a></li>
+</ul>
+</li>
+</ul>
+</li>
 <li><a href="#java">21.6.3. Java</a></li>
 </ul>
 </li>
@@ -21280,7 +21288,7 @@ TimingSimpleCPU::IcachePort::ITickEvent::process()
 <div class="ulist">
 <ul>
 <li>
-<p><code>curStaticInst&#8594;isMemRef()</code> is true, and there is no instruction <code>execute</code> call in that part of the branch, only for instructions that don&#8217;t touch memory</p>
+<p><code>curStaticInst-&gt;isMemRef()</code> is true, and there is no instruction <code>execute</code> call in that part of the branch, only for instructions that don&#8217;t touch memory</p>
 </li>
 <li>
 <p><code>_status</code> is <code>BaseSimpleCPU::Status::DcacheWaitResponse</code> and <code>advanceInst</code> is not yet called</p>
@@ -21293,12 +21301,12 @@ TimingSimpleCPU::IcachePort::ITickEvent::process()
 <div class="ulist">
 <ul>
 <li>
-<p><code>curStaticInst&#8594;initiateAcc</code> sets up some memory request events</p>
+<p><code>curStaticInst-&gt;initiateAcc</code> sets up some memory request events</p>
 </li>
 <li>
 <p>which likely lead up to: <code>TimingSimpleCPU::completeDataAccess</code>, which off the bat ends in <code>advanceInst</code>.</p>
 <div class="paragraph">
-<p>It also calls <code>curStaticInst&#8594;completeAcc</code>, which pairs up with the <code>initiateAcc</code> call.</p>
+<p>It also calls <code>curStaticInst-&gt;completeAcc</code>, which pairs up with the <code>initiateAcc</code> call.</p>
 </div>
 </li>
 </ul>
@@ -23509,7 +23517,10 @@ There are no non-locking atomic types or atomic primitives in POSIX: <a href="ht
 <div class="sect3">
 <h4 id="node-js"><a class="anchor" href="#node-js"></a><a class="link" href="#node-js">21.6.2. Node.js</a></h4>
 <div class="paragraph">
-<p>Build and install the interpreter with:</p>
+<p>Host installation shown at: <a href="https://askubuntu.com/questions/594656/how-to-install-the-latest-versions-of-nodejs-and-npm/971612#971612" class="bare">https://askubuntu.com/questions/594656/how-to-install-the-latest-versions-of-nodejs-and-npm/971612#971612</a></p>
+</div>
+<div class="paragraph">
+<p>Build and install the interpreter in Buildroot with:</p>
 </div>
 <div class="literalblock">
 <div class="content">
@@ -23570,6 +23581,35 @@ There are no non-locking atomic types or atomic primitives in POSIX: <a href="ht
 </li>
 </ul>
 </div>
+<div class="sect4">
+<h5 id="npm"><a class="anchor" href="#npm"></a><a class="link" href="#npm">21.6.2.1. NPM</a></h5>
+<div class="paragraph">
+<p><a href="https://en.wikipedia.org/wiki/Npm_(software" class="bare">https://en.wikipedia.org/wiki/Npm_(software</a>)</p>
+</div>
+<div class="paragraph">
+<p>Some sample packages can be found under: <a href="https://github.com/cirosantilli/linux-kernel-module-cheat/blob/master/npm">npm</a>.</p>
+</div>
+<div class="paragraph">
+<p>Local testing of those packages can be done as shown at: <a href="https://stackoverflow.com/questions/59389027/how-to-interactively-test-the-executable-of-an-npm-node-js-package-during-develo" class="bare">https://stackoverflow.com/questions/59389027/how-to-interactively-test-the-executable-of-an-npm-node-js-package-during-develo</a></p>
+</div>
+<div class="paragraph">
+<p>The packages will also be published to the NPM registry, so you can also play with them as:</p>
+</div>
+<div class="literalblock">
+<div class="content">
+<pre>npm install cirosantilli-&lt;directory-name&gt;</pre>
+</div>
+</div>
+<div class="sect5">
+<h6 id="npm-data-files"><a class="anchor" href="#npm-data-files"></a><a class="link" href="#npm-data-files">21.6.2.1.1. NPM data-files</a></h6>
+<div class="paragraph">
+<p>Illustrates how to add extra non-code data files to an NPM package, and then use those files at runtime:</p>
+</div>
+<div class="paragraph">
+<p><a href="https://stackoverflow.com/questions/10111163/in-node-js-how-can-i-get-the-path-of-a-module-i-have-loaded-via-require-that-is" class="bare">https://stackoverflow.com/questions/10111163/in-node-js-how-can-i-get-the-path-of-a-module-i-have-loaded-via-require-that-is</a></p>
+</div>
+</div>
+</div>
 </div>
 <div class="sect3">
 <h4 id="java"><a class="anchor" href="#java"></a><a class="link" href="#java">21.6.3. Java</a></h4>