diff --git a/404.html b/404.html
index 60a51ed..e5df132 100644
--- a/404.html
+++ b/404.html
@@ -363,9 +363,9 @@ <h1>Page not found</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/404.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/404.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index a6ce7ba..0f64b7e 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -409,9 +409,9 @@ <h1>Contributor Code of Conduct</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/CODE_OF_CONDUCT.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/CODE_OF_CONDUCT.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-09",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/JECexample.html b/JECexample.html
index 0db3024..a2c042f 100644
--- a/JECexample.html
+++ b/JECexample.html
@@ -421,9 +421,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/JECexample.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/JECexample.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-11",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 653b4c1..3a43f38 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -435,9 +435,9 @@ <h1>Licenses</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/LICENSE.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/LICENSE.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-02",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/REANA.html b/REANA.html
index 86bc455..c475eb5 100644
--- a/REANA.html
+++ b/REANA.html
@@ -317,7 +317,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Running workflows in REANA</h1>
-        <p>Last updated on 2024-11-14 |
+        <p>Last updated on 2024-11-16 |
 
         <a href="https://github.com/alefisico/reana-tutorial/edit/main/episodes/REANA.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -553,10 +553,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <div id="accordionSpoiler1" class="accordion spoiler-accordion accordion-flush">
 <div class="accordion-item">
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
-  <h3 class="accordion-header" id="headingSpoiler1">
-  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div>
-  Did the workflow finish succesfully now?
-  </h3>
+  <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Did the workflow finish succesfully now? </h3>
 </button>
 <div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
@@ -606,6 +603,52 @@ <h3 class="callout-title">The Easiest Way: The REANA Web Interface</h3>
 </ul></div>
 </div>
 </div>
+<p>Are you getting this error:</p>
+<div class="codewrapper">
+<h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="output" tabindex="0"><code>job: :
+ mkdir: cannot create directory ‘./output’: Permission denied
+Error in &lt;TFile::TFile&gt;: file /code/CMSSW_13_0_10/src/./SUSY/DY.root does not exist</code></pre>
+</div>
+<p>A key feature of REANA-like platforms is that your workflow must be
+self-contained within the REANA environment. This means that your
+workflow needs to access its input files and write its output files to
+specific locations within the REANA workspace.</p>
+<p>In this example, notice the following lines at the beginning of the
+Snakefile:</p>
+<pre><code><span><span class="co"># Define output folder</span></span>
+<span><span class="co"># output_dir = "$REANA_WORKSPACE"</span></span>
+<span><span class="va">output_dir</span> <span class="op">=</span> <span class="st">"."</span></span></code></pre>
+<p>The commented-out line <code>output_dir = "$REANA_WORKSPACE"</code>
+demonstrates how to correctly specify the output directory using a REANA
+environment variable. REANA provides several environment variables to
+help you interact with the platform. A comprehensive list of these
+variables can be found in the REANA documentation.</p>
+
+<p>This example demonstrates how to make modifications to your REANA
+workflow. In this case, after correcting the <code>output_dir</code> in
+your <code>Snakefile</code>, you’ll need to reupload the file to the
+REANA platform.</p>
+<p>To <strong>reupload</strong> the modified <code>Snakefile</code>, use
+the following command:</p>
+<div class="codewrapper sourceCode" id="cb13">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" tabindex="-1"></a><span class="ex">reana-client</span> upload <span class="at">-w</span> test_SUSY Snakefile</span></code></pre>
+</div>
+<p>You can upload multiple files as needed. Once you’re satisfied with
+the updated files in your REANA workspace, you can resubmit the
+workflow:</p>
+<div class="codewrapper sourceCode" id="cb14">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" tabindex="-1"></a><span class="ex">reana-client</span> restart <span class="at">-w</span> test_SUSY</span></code></pre>
+</div>
+<p>You can monitor the status of your workflow either through the
+command line or the web interface. Note that the workflow name will now
+include a number (e.g., <code>test_SUSY.1</code>). This indicates that
+you’re running a modified version of the original workflow.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -679,9 +722,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/REANA.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/REANA.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/SUSYexample.html b/SUSYexample.html
index 53d66d8..4f289fa 100644
--- a/SUSYexample.html
+++ b/SUSYexample.html
@@ -608,9 +608,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/SUSYexample.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/SUSYexample.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/Snakemake.html b/Snakemake.html
index 023a1ee..e93b1df 100644
--- a/Snakemake.html
+++ b/Snakemake.html
@@ -960,9 +960,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/Snakemake.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/Snakemake.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index c8c93ca..edbae3c 100644
--- a/aio.html
+++ b/aio.html
@@ -423,7 +423,7 @@ <h3 class="callout-title">Who are the first users of a reproducible workflow?</h
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Me, myself and my group. <span class="emoji" data-emoji="grin">😁</span></p>
 </div>
@@ -471,7 +471,7 @@ <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Output </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -498,7 +498,7 @@ <h3 class="callout-title">Challenge 2: how do you nest solutions within challeng
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>You can add a line with at least three colons and a
 <code>solution</code> tag.</p>
@@ -1433,7 +1433,7 @@ <h3 class="callout-title">Key Points</h3>
  -->
 </section></section><section id="aio-REANA"><p>Content from <a href="REANA.html">Running workflows in REANA</a></p>
 <hr>
-<p>Last updated on 2024-11-14 |
+<p>Last updated on 2024-11-16 |
 
         <a href="https://github.com/alefisico/reana-tutorial/edit/main/episodes/REANA.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1677,10 +1677,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <div id="accordionSpoiler1" class="accordion spoiler-accordion accordion-flush">
 <div class="accordion-item">
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
-  <h3 class="accordion-header" id="headingSpoiler1">
-  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div>
-  Did the workflow finish succesfully now?
-  </h3>
+  <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Did the workflow finish succesfully now? </h3>
 </button>
 <div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
@@ -1734,6 +1731,52 @@ <h3 class="callout-title">The Easiest Way: The REANA Web Interface</h3>
 </div>
 </div>
 </div>
+<p>Are you getting this error:</p>
+<div class="codewrapper">
+<h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="output" tabindex="0"><code>job: :
+ mkdir: cannot create directory ‘./output’: Permission denied
+Error in &lt;TFile::TFile&gt;: file /code/CMSSW_13_0_10/src/./SUSY/DY.root does not exist</code></pre>
+</div>
+<p>A key feature of REANA-like platforms is that your workflow must be
+self-contained within the REANA environment. This means that your
+workflow needs to access its input files and write its output files to
+specific locations within the REANA workspace.</p>
+<p>In this example, notice the following lines at the beginning of the
+Snakefile:</p>
+<pre><code><span><span class="co"># Define output folder</span></span>
+<span><span class="co"># output_dir = "$REANA_WORKSPACE"</span></span>
+<span><span class="va">output_dir</span> <span class="op">=</span> <span class="st">"."</span></span></code></pre>
+<p>The commented-out line <code>output_dir = "$REANA_WORKSPACE"</code>
+demonstrates how to correctly specify the output directory using a REANA
+environment variable. REANA provides several environment variables to
+help you interact with the platform. A comprehensive list of these
+variables can be found in the REANA documentation.</p>
+
+<p>This example demonstrates how to make modifications to your REANA
+workflow. In this case, after correcting the <code>output_dir</code> in
+your <code>Snakefile</code>, you’ll need to reupload the file to the
+REANA platform.</p>
+<p>To <strong>reupload</strong> the modified <code>Snakefile</code>, use
+the following command:</p>
+<div class="codewrapper sourceCode" id="cb13">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" tabindex="-1"></a><span class="ex">reana-client</span> upload <span class="at">-w</span> test_SUSY Snakefile</span></code></pre>
+</div>
+<p>You can upload multiple files as needed. Once you’re satisfied with
+the updated files in your REANA workspace, you can resubmit the
+workflow:</p>
+<div class="codewrapper sourceCode" id="cb14">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" tabindex="-1"></a><span class="ex">reana-client</span> restart <span class="at">-w</span> test_SUSY</span></code></pre>
+</div>
+<p>You can monitor the status of your workflow either through the
+command line or the web interface. Note that the workflow name will now
+include a number (e.g., <code>test_SUSY.1</code>). This indicates that
+you’re running a modified version of the original workflow.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -1847,9 +1890,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/aio.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/aio.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index eeb41dd..f53aa2e 100644
--- a/images.html
+++ b/images.html
@@ -420,9 +420,9 @@ <h3 id="REANA-figure-2">Figure 2</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/images.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/images.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 941fea7..561c27d 100644
--- a/index.html
+++ b/index.html
@@ -533,9 +533,9 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/index.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/index.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index be3e99d..8536ea4 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -407,9 +407,9 @@ <h1>Instructor Notes</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor-notes.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor-notes.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 84c976e..889241f 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -363,9 +363,9 @@ <h1>Page not found</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/404.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/404.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 4987277..b45011f 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -410,9 +410,9 @@ <h1>Contributor Code of Conduct</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/CODE_OF_CONDUCT.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/CODE_OF_CONDUCT.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-09",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/JECexample.html b/instructor/JECexample.html
index 1ea710b..625bd6b 100644
--- a/instructor/JECexample.html
+++ b/instructor/JECexample.html
@@ -422,9 +422,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/JECexample.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/JECexample.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-11",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 1b26c6e..a692835 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -436,9 +436,9 @@ <h1>Licenses</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/LICENSE.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/LICENSE.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-02",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/REANA.html b/instructor/REANA.html
index bc9114e..8637b49 100644
--- a/instructor/REANA.html
+++ b/instructor/REANA.html
@@ -316,7 +316,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Running workflows in REANA</h1>
-        <p>Last updated on 2024-11-14 |
+        <p>Last updated on 2024-11-16 |
 
         <a href="https://github.com/alefisico/reana-tutorial/edit/main/episodes/REANA.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -554,10 +554,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <div id="accordionSpoiler1" class="accordion spoiler-accordion accordion-flush">
 <div class="accordion-item">
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
-  <h3 class="accordion-header" id="headingSpoiler1">
-  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div>
-  Did the workflow finish succesfully now?
-  </h3>
+  <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Did the workflow finish succesfully now? </h3>
 </button>
 <div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
@@ -607,6 +604,63 @@ <h3 class="callout-title">The Easiest Way: The REANA Web Interface</h3>
 </ul></div>
 </div>
 </div>
+<p>Are you getting this error:</p>
+<div class="codewrapper">
+<h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="output" tabindex="0"><code>job: :
+ mkdir: cannot create directory ‘./output’: Permission denied
+Error in &lt;TFile::TFile&gt;: file /code/CMSSW_13_0_10/src/./SUSY/DY.root does not exist</code></pre>
+</div>
+<p>A key feature of REANA-like platforms is that your workflow must be
+self-contained within the REANA environment. This means that your
+workflow needs to access its input files and write its output files to
+specific locations within the REANA workspace.</p>
+<p>In this example, notice the following lines at the beginning of the
+Snakefile:</p>
+<pre><code><span><span class="co"># Define output folder</span></span>
+<span><span class="co"># output_dir = "$REANA_WORKSPACE"</span></span>
+<span><span class="va">output_dir</span> <span class="op">=</span> <span class="st">"."</span></span></code></pre>
+<p>The commented-out line <code>output_dir = "$REANA_WORKSPACE"</code>
+demonstrates how to correctly specify the output directory using a REANA
+environment variable. REANA provides several environment variables to
+help you interact with the platform. A comprehensive list of these
+variables can be found in the REANA documentation.</p>
+<div id="accordionInstructor1" class="accordion instructor-note accordion-flush">
+<div class="accordion-item">
+<button class="accordion-button instructor-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseInstructor1" aria-expanded="false" aria-controls="collapseInstructor1">
+  <h3 class="accordion-header" id="headingInstructor1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div> Instructor Note </h3>
+</button>
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div class="accordion-body">
+<p>It will be nice to have a list of REANA variables</p>
+</div>
+</div>
+</div>
+</div>
+<p>This example demonstrates how to make modifications to your REANA
+workflow. In this case, after correcting the <code>output_dir</code> in
+your <code>Snakefile</code>, you’ll need to reupload the file to the
+REANA platform.</p>
+<p>To <strong>reupload</strong> the modified <code>Snakefile</code>, use
+the following command:</p>
+<div class="codewrapper sourceCode" id="cb13">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" tabindex="-1"></a><span class="ex">reana-client</span> upload <span class="at">-w</span> test_SUSY Snakefile</span></code></pre>
+</div>
+<p>You can upload multiple files as needed. Once you’re satisfied with
+the updated files in your REANA workspace, you can resubmit the
+workflow:</p>
+<div class="codewrapper sourceCode" id="cb14">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" tabindex="-1"></a><span class="ex">reana-client</span> restart <span class="at">-w</span> test_SUSY</span></code></pre>
+</div>
+<p>You can monitor the status of your workflow either through the
+command line or the web interface. Note that the workflow name will now
+include a number (e.g., <code>test_SUSY.1</code>). This indicates that
+you’re running a modified version of the original workflow.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -680,9 +734,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/REANA.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/REANA.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/SUSYexample.html b/instructor/SUSYexample.html
index acead0e..99bdb64 100644
--- a/instructor/SUSYexample.html
+++ b/instructor/SUSYexample.html
@@ -609,9 +609,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/SUSYexample.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/SUSYexample.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/Snakemake.html b/instructor/Snakemake.html
index 8247ac8..b6dc8fe 100644
--- a/instructor/Snakemake.html
+++ b/instructor/Snakemake.html
@@ -961,9 +961,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/Snakemake.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/Snakemake.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 7074541..077937f 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -424,7 +424,7 @@ <h3 class="callout-title">Who are the first users of a reproducible workflow?</h
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Me, myself and my group. <span class="emoji" data-emoji="grin">😁</span></p>
 </div>
@@ -455,7 +455,7 @@ <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 <button class="accordion-button instructor-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseInstructor1" aria-expanded="false" aria-controls="collapseInstructor1">
   <h3 class="accordion-header" id="headingInstructor1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div> Instructor Note </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Inline instructor notes can help inform instructors of timing
 challenges associated with the lessons. They appear in the “Instructor
@@ -486,7 +486,7 @@ <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Output </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -513,7 +513,7 @@ <h3 class="callout-title">Challenge 2: how do you nest solutions within challeng
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>You can add a line with at least three colons and a
 <code>solution</code> tag.</p>
@@ -1450,7 +1450,7 @@ <h3 class="callout-title">Key Points</h3>
  -->
 </section></section><section id="aio-REANA"><p>Content from <a href="REANA.html">Running workflows in REANA</a></p>
 <hr>
-<p>Last updated on 2024-11-14 |
+<p>Last updated on 2024-11-16 |
 
         <a href="https://github.com/alefisico/reana-tutorial/edit/main/episodes/REANA.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1694,10 +1694,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <div id="accordionSpoiler1" class="accordion spoiler-accordion accordion-flush">
 <div class="accordion-item">
 <button class="accordion-button spoiler-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSpoiler1" aria-expanded="false" aria-controls="collapseSpoiler1">
-  <h3 class="accordion-header" id="headingSpoiler1">
-  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div>
-  Did the workflow finish succesfully now?
-  </h3>
+  <h3 class="accordion-header" id="headingSpoiler1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="eye"></i></div> Did the workflow finish succesfully now? </h3>
 </button>
 <div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
@@ -1751,6 +1748,63 @@ <h3 class="callout-title">The Easiest Way: The REANA Web Interface</h3>
 </div>
 </div>
 </div>
+<p>Are you getting this error:</p>
+<div class="codewrapper">
+<h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="output" tabindex="0"><code>job: :
+ mkdir: cannot create directory ‘./output’: Permission denied
+Error in &lt;TFile::TFile&gt;: file /code/CMSSW_13_0_10/src/./SUSY/DY.root does not exist</code></pre>
+</div>
+<p>A key feature of REANA-like platforms is that your workflow must be
+self-contained within the REANA environment. This means that your
+workflow needs to access its input files and write its output files to
+specific locations within the REANA workspace.</p>
+<p>In this example, notice the following lines at the beginning of the
+Snakefile:</p>
+<pre><code><span><span class="co"># Define output folder</span></span>
+<span><span class="co"># output_dir = "$REANA_WORKSPACE"</span></span>
+<span><span class="va">output_dir</span> <span class="op">=</span> <span class="st">"."</span></span></code></pre>
+<p>The commented-out line <code>output_dir = "$REANA_WORKSPACE"</code>
+demonstrates how to correctly specify the output directory using a REANA
+environment variable. REANA provides several environment variables to
+help you interact with the platform. A comprehensive list of these
+variables can be found in the REANA documentation.</p>
+<div id="accordionInstructor1" class="accordion instructor-note accordion-flush">
+<div class="accordion-item">
+<button class="accordion-button instructor-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseInstructor1" aria-expanded="false" aria-controls="collapseInstructor1">
+  <h3 class="accordion-header" id="headingInstructor1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div> Instructor Note </h3>
+</button>
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div class="accordion-body">
+<p>It will be nice to have a list of REANA variables</p>
+</div>
+</div>
+</div>
+</div>
+<p>This example demonstrates how to make modifications to your REANA
+workflow. In this case, after correcting the <code>output_dir</code> in
+your <code>Snakefile</code>, you’ll need to reupload the file to the
+REANA platform.</p>
+<p>To <strong>reupload</strong> the modified <code>Snakefile</code>, use
+the following command:</p>
+<div class="codewrapper sourceCode" id="cb13">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" tabindex="-1"></a><span class="ex">reana-client</span> upload <span class="at">-w</span> test_SUSY Snakefile</span></code></pre>
+</div>
+<p>You can upload multiple files as needed. Once you’re satisfied with
+the updated files in your REANA workspace, you can resubmit the
+workflow:</p>
+<div class="codewrapper sourceCode" id="cb14">
+<h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
+</h3>
+<pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" tabindex="-1"></a><span class="ex">reana-client</span> restart <span class="at">-w</span> test_SUSY</span></code></pre>
+</div>
+<p>You can monitor the status of your workflow either through the
+command line or the web interface. Note that the workflow name will now
+include a number (e.g., <code>test_SUSY.1</code>). This indicates that
+you’re running a modified version of the original workflow.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -1864,9 +1918,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/aio.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/aio.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 8ed21e1..9b79cb7 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -420,9 +420,9 @@ <h3 id="REANA-figure-2">Figure 2</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/images.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/images.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 972e7e0..c4c4260 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -601,9 +601,9 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/index.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/index.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 5247f68..8cfbc13 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -372,7 +372,13 @@ <h3 id="introduction-headingInstructor1">
 <br></section><section id="Snakemake"><h2 class="section-heading"><a href="Snakemake.html">Snakemake</a></h2>
 <hr class="half-width"></section><section id="SUSYexample"><h2 class="section-heading"><a href="SUSYexample.html">A simple analysis from SUSY</a></h2>
 <hr class="half-width"></section><section id="REANA"><h2 class="section-heading"><a href="REANA.html">Running workflows in REANA</a></h2>
-<hr class="half-width"></section><section id="JECexample"><h2 class="section-heading"><a href="JECexample.html">A more complex example: Calculating JECs</a></h2>
+<hr class="half-width">
+<h3 id="REANA-headingInstructor1">
+<a href="REANA.html#headingInstructor1">Instructor Note</a><a class="anchor" aria-label="anchor" href="#REANA-headingInstructor1"></a>
+</h3>
+<p>It will be nice to have a list of REANA variables</p>
+<hr>
+<br></section><section id="JECexample"><h2 class="section-heading"><a href="JECexample.html">A more complex example: Calculating JECs</a></h2>
 <hr class="half-width"></section></section>
 </div>
     </main>
@@ -420,9 +426,9 @@ <h3 id="introduction-headingInstructor1">
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/instructor-notes.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/instructor-notes.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/introduction.html b/instructor/introduction.html
index c970484..4864bfd 100644
--- a/instructor/introduction.html
+++ b/instructor/introduction.html
@@ -387,7 +387,7 @@ <h3 class="callout-title">Who are the first users of a reproducible workflow?</h
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Me, myself and my group. <span class="emoji" data-emoji="grin">😁</span></p>
 </div>
@@ -416,7 +416,7 @@ <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 <button class="accordion-button instructor-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseInstructor1" aria-expanded="false" aria-controls="collapseInstructor1">
   <h3 class="accordion-header" id="headingInstructor1">  <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div> Instructor Note </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Inline instructor notes can help inform instructors of timing
 challenges associated with the lessons. They appear in the “Instructor
@@ -447,7 +447,7 @@ <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Output </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -474,7 +474,7 @@ <h3 class="callout-title">Challenge 2: how do you nest solutions within challeng
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>You can add a line with at least three colons and a
 <code>solution</code> tag.</p>
@@ -587,9 +587,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/introduction.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/introduction.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-31",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index ce5706c..0c7aab2 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -441,9 +441,9 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/key-points.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/key-points.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index c450bc9..91f5a9b 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -340,9 +340,9 @@ <h1>Learner Profiles</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/instructor/profiles.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/instructor/profiles.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/introduction.html b/introduction.html
index b097de6..942da4c 100644
--- a/introduction.html
+++ b/introduction.html
@@ -386,7 +386,7 @@ <h3 class="callout-title">Who are the first users of a reproducible workflow?</h
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>Me, myself and my group. <span class="emoji" data-emoji="grin">😁</span></p>
 </div>
@@ -432,7 +432,7 @@ <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Output </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -459,7 +459,7 @@ <h3 class="callout-title">Challenge 2: how do you nest solutions within challeng
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>You can add a line with at least three colons and a
 <code>solution</code> tag.</p>
@@ -572,9 +572,9 @@ <h3 class="callout-title">Key Points</h3>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/introduction.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/introduction.html",
-  "dateCreated": "2024-11-14",
+  "dateCreated": "2024-11-16",
   "dateModified": "2024-10-31",
-  "datePublished": "2024-11-14"
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index d20bab6..7051d6b 100644
--- a/key-points.html
+++ b/key-points.html
@@ -441,9 +441,9 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/key-points.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/key-points.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>
diff --git a/md5sum.txt b/md5sum.txt
index f4dbe57..ecdf062 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -7,7 +7,7 @@
 "episodes/introduction.md" "897780644891538a27ecd0b81777e0b2" "site/built/introduction.md" "2024-10-31"
 "episodes/Snakemake.md" "0c91bdcf275ebfff2ffb9058e47948b3" "site/built/Snakemake.md" "2024-11-14"
 "episodes/SUSYexample.md" "28431c7fb5e588bfe68d8cfea3257be3" "site/built/SUSYexample.md" "2024-11-14"
-"episodes/REANA.md" "4ef0d2fc19049c71939afac29a139e9a" "site/built/REANA.md" "2024-11-14"
+"episodes/REANA.md" "d707f69febe733f9ca95e6d9851c191a" "site/built/REANA.md" "2024-11-16"
 "episodes/JECexample.md" "5d2a7ca0400a6bc56d32b3360c5fe25e" "site/built/JECexample.md" "2024-11-11"
 "instructors/instructor-notes.md" "cae72b6712578d74a49fea7513099f8c" "site/built/instructor-notes.md" "2024-10-02"
 "learners/setup.md" "5dd560e6a928c0aa92f1909cc95f6821" "site/built/setup.md" "2024-11-14"
diff --git a/pkgdown.yml b/pkgdown.yml
index 941473d..9558ea4 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,4 +2,4 @@ pandoc: 3.1.11
 pkgdown: 2.1.1
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-11-14T22:42Z
+last_built: 2024-11-16T15:15Z
diff --git a/profiles.html b/profiles.html
index e43ee71..5e43ef7 100644
--- a/profiles.html
+++ b/profiles.html
@@ -341,9 +341,9 @@ <h1>Learner Profiles</h1>
   "creativeWorkStatus": "active",
   "url": "https://alefisico.github.io/reana-tutorial/profiles.html",
   "identifier": "https://alefisico.github.io/reana-tutorial/profiles.html",
-  "dateCreated": "2024-11-14",
-  "dateModified": "2024-11-14",
-  "datePublished": "2024-11-14"
+  "dateCreated": "2024-11-16",
+  "dateModified": "2024-11-16",
+  "datePublished": "2024-11-16"
 }
 
   </script><script>