diff --git a/01-introduction.html b/01-introduction.html
index 0121e8a..aae6ed2 100644
--- a/01-introduction.html
+++ b/01-introduction.html
@@ -436,7 +436,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/01-introduction.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-10-31",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/02-theory.html b/02-theory.html
index a9f1ade..55ab041 100644
--- a/02-theory.html
+++ b/02-theory.html
@@ -699,7 +699,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/02-theory.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-10-31",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/03-muscle-connect.html b/03-muscle-connect.html
index 2a9af58..3f9c3c6 100644
--- a/03-muscle-connect.html
+++ b/03-muscle-connect.html
@@ -373,7 +373,7 @@ <h3 class="callout-title">Challenge 1: Can you recognize the Submodel Execution
 <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">
 <div class="codewrapper sourceCode" id="cb2">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -446,7 +446,7 @@ <h3 class="callout-title">What ports do we need?<a class="anchor" aria-label="an
 <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">Show me the solution</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">
 <p>In this model, we need:</p>
 <ul><li>a single input port that will receive an initial state (e.g. named “initial_state”) at the beginning of the model run and it should be mapped to the <span class="math inline">\(f_{init}\)</span> operator</li>
@@ -485,7 +485,7 @@ <h3 class="callout-title">Challenge 2: Creating an Instance and adding a loop<a
 <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">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -576,7 +576,7 @@ <h3 class="callout-title">Challenge 3:<a class="anchor" aria-label="anchor" href
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -659,7 +659,7 @@ <h3 class="callout-title">Challenge 4: Receiving the initial state and keeping t
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -753,7 +753,7 @@ <h3 class="callout-title">Challenge 5: Send back the result<a class="anchor" ari
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -880,7 +880,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/03-muscle-connect.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-10-31",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/04-muscle-couple.html b/04-muscle-couple.html
index fa4e24b..cea2974 100644
--- a/04-muscle-couple.html
+++ b/04-muscle-couple.html
@@ -313,7 +313,7 @@ <h3 class="callout-title">Challenge 1: Investigating the diffusion model<a class
 <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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ul><li>The ports are named differently, and are attached to different operators</li>
 <li>The send and receive statements are now within the state update loop</li>
@@ -366,7 +366,7 @@ <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></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">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb2">
 <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -479,7 +479,7 @@ <h3 class="callout-title">Challenge 3: Running the coupled simulation<a class="a
 <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" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>$ python3 coupled_model.py</p>
 </div>
@@ -535,7 +535,7 @@ <h3 id="run-the-simulation">Run the simulation<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>To turn <code>reaction.py</code> into a stand-alone program, you need to add the final section of <code>diffusion.py</code> to the end, slightly modified:</p>
 <pre><code>if __name__ == '__main__':
@@ -638,7 +638,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/04-muscle-couple.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-10-31",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 1e55cd9..075d4fb 100644
--- a/404.html
+++ b/404.html
@@ -289,8 +289,8 @@ <h1>Page not found</h1>
   "url": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/404.html",
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/404.html",
   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index b24bb34..48f3f19 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -317,7 +317,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/CODE_OF_CONDUCT.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-08-16",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 845c08d..a3159e4 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -336,7 +336,7 @@ <h1>Licenses</h1>
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/LICENSE.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-08-16",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index ceac299..90aa7e4 100644
--- a/aio.html
+++ b/aio.html
@@ -1011,7 +1011,7 @@ <h3 class="callout-title">Challenge 1: Can you recognize the Submodel Execution
 <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">
 <div class="codewrapper sourceCode" id="cb2">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1085,7 +1085,7 @@ <h3 class="callout-title">What ports do we need?<a class="anchor" aria-label="an
 <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">Show me the solution</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">
 <p>In this model, we need:</p>
 <ul>
@@ -1129,7 +1129,7 @@ <h3 class="callout-title">Challenge 2: Creating an Instance and adding a loop<a
 <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">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1223,7 +1223,7 @@ <h3 class="callout-title">Challenge 3:<a class="anchor" aria-label="anchor" href
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1308,7 +1308,7 @@ <h3 class="callout-title">Challenge 4: Receiving the initial state and keeping t
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1403,7 +1403,7 @@ <h3 class="callout-title">Challenge 5: Send back the result<a class="anchor" ari
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1536,7 +1536,7 @@ <h3 class="callout-title">Challenge 1: Investigating the diffusion model<a class
 <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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ul>
 <li>The ports are named differently, and are attached to different operators</li>
@@ -1592,7 +1592,7 @@ <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></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">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb2">
 <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1708,7 +1708,7 @@ <h3 class="callout-title">Challenge 3: Running the coupled simulation<a class="a
 <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" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>$ python3 coupled_model.py</p>
 </div>
@@ -1770,7 +1770,7 @@ <h3 id="run-the-simulation">Run the simulation<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>To turn <code>reaction.py</code> into a stand-alone program, you need to add the final section of <code>diffusion.py</code> to the end, slightly modified:</p>
 <pre><code>if __name__ == '__main__':
@@ -1864,8 +1864,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/aio.html",
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/aio.html",
   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index bac97c8..96c062c 100644
--- a/images.html
+++ b/images.html
@@ -357,8 +357,8 @@ <h3 id="04-muscle-couple-figure-1">Figure 1</h3>
   "url": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/images.html",
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/images.html",
   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index eb3129c..18aa044 100644
--- a/index.html
+++ b/index.html
@@ -326,8 +326,8 @@ <h3 id="files">Files<a class="anchor" aria-label="anchor" href="#files"></a></h3
   "url": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/index.html",
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/index.html",
   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 1016ab2..8c93eba 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -334,8 +334,8 @@ <h1>Instructor Notes</h1>
   "url": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/instructor-notes.html",
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/instructor-notes.html",
   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/instructor/01-introduction.html b/instructor/01-introduction.html
index a5b203e..5ddcb88 100644
--- a/instructor/01-introduction.html
+++ b/instructor/01-introduction.html
@@ -437,7 +437,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://esciencecenter-digital-skills.github.io/lesson-model-coupling/instructor/01-introduction.html",
   "dateCreated": "2022-08-16",
   "dateModified": "2022-10-31",
-  "datePublished": "2024-03-19"
+  "datePublished": "2024-03-26"
 }
 
   </script><script>
diff --git a/instructor/02-theory.html b/instructor/02-theory.html
index 1b44ea7..92c17a1 100644
--- a/instructor/02-theory.html
+++ b/instructor/02-theory.html
@@ -876,7 +876,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2022-08-16",
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diff --git a/instructor/03-muscle-connect.html b/instructor/03-muscle-connect.html
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@@ -299,7 +299,7 @@ <h3 class="card-title">Objectives</h3>
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 <ul><li>MUSCLE3 makes coupled simulations easy</li>
 <li>Made by UvA-CSL and NLeSC</li>
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 <ul><li>Reaction function is a very small (but typical) model code
 <ul><li>Copy the state from the input to avoid overwriting it</li>
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 <ul><li>Instance represents this model instance to the coupled simulation</li>
 <li>Send and receive messages on ports (don’t know what’s connected!)</li>
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 <p>In this model, we need:</p>
 <ul><li>a single input port that will receive an initial state (e.g. named “initial_state”) at the beginning of the model run and it should be mapped to the <span class="math inline">\(f_{init}\)</span> operator</li>
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 <ul><li>Sometimes a model needs to run many times, depending on how it’s connected</li>
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 <ul><li>Handy to have all the settings together in one place</li>
 <li>Models get them via the instance object (see syntax)
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 <ul><li>Now, we need to receive our initial state from the appropriate port</li>
 <li>
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 <ul><li>We won’t try to connect anything to our <code>O_i</code> and <code>S</code>
 <ul><li>No ports</li>
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 <ul><li>At the end of the run, we need to send the final state</li>
 <li>Create a <code>Message</code>
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diff --git a/instructor/04-muscle-couple.html b/instructor/04-muscle-couple.html
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 <ul><li>Write differences between <code>diffusion.py</code> and <code>reaction.py</code> in shared document
 <ul><li>Besides the model, of course</li>
@@ -329,7 +329,7 @@ <h3 class="callout-title">Challenge 1: Investigating the diffusion model<a class
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 <ul><li>The ports are named differently, and are attached to different operators</li>
 <li>The send and receive statements are now within the state update loop</li>
@@ -345,7 +345,7 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
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 <ul><li>Time to connect the two models together, see diagram</li>
 <li>Computers don’t read diagrams very well, so there is yMMSL, based on YAML</li>
@@ -400,7 +400,7 @@ <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></i
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 <ul><li>Remember that we’re getting our settings from MUSCLE3, they need to be added</li>
 <li>It’s a YAML dict, but look at the names of the settings, does anything stand out?</li>
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 <ul><li>Resources are a bit of an advance topic, so we’re not going into it here</li>
 <li>We need to specify something, which is that our components are single-threaded</li>
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 <ul><li>To connect, need model functions and configuration, then tie together</li>
 <li>Show code snippets</li>
@@ -559,7 +559,7 @@ <h3 class="callout-title">Challenge 3: Running the coupled simulation<a class="a
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 <p>$ python3 coupled_model.py</p>
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 <ul><li>This one may be a bit more difficult, but needed for C++, Fortran and HPC</li>
 <li>Manager lets you use programs instead of Python functions to create instances</li>
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 <p>To turn <code>reaction.py</code> into a stand-alone program, you need to add the final section of <code>diffusion.py</code> to the end, slightly modified:</p>
 <pre><code>if __name__ == '__main__':
@@ -738,7 +738,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2022-08-16",
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 <li>MUSCLE3 makes coupled simulations easy</li>
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 <li>Reaction function is a very small (but typical) model code
@@ -1270,7 +1270,7 @@ <h3 class="callout-title">Challenge 1: Can you recognize the Submodel Execution
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@@ -1318,7 +1318,7 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
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 </button>
-<div id="collapseInstructor3" class="accordion-collapse collapse" aria-labelledby="headingInstructor3" data-bs-parent="#accordionInstructor3">
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 <ul>
 <li>Instance represents this model instance to the coupled simulation</li>
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 <p>In this model, we need:</p>
 <ul>
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 <ul>
 <li>Sometimes a model needs to run many times, depending on how it’s connected</li>
@@ -1427,7 +1427,7 @@ <h3 class="callout-title">Challenge 2: Creating an Instance and adding a loop<a
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 <div class="accordion-body">
 <ul>
 <li>Handy to have all the settings together in one place</li>
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 <ul>
 <li>Now, we need to receive our initial state from the appropriate port</li>
@@ -1635,7 +1635,7 @@ <h3 class="callout-title">Why .copy() again?<a class="anchor" aria-label="anchor
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 <ul>
 <li>We won’t try to connect anything to our <code>O_i</code> and <code>S</code>
@@ -1677,7 +1677,7 @@ <h3 class="callout-title">Challenge 4: Receiving the initial state and keeping t
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 <ul>
 <li>At the end of the run, we need to send the final state</li>
@@ -1795,7 +1795,7 @@ <h3 class="callout-title">Challenge 5: Send back the result<a class="anchor" ari
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 <div class="accordion-body">
 <ul>
 <li>Write differences between <code>diffusion.py</code> and <code>reaction.py</code> in shared document
@@ -1948,7 +1948,7 @@ <h3 class="callout-title">Challenge 1: Investigating the diffusion model<a class
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 <ul>
 <li>The ports are named differently, and are attached to different operators</li>
@@ -1967,7 +1967,7 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
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 </button>
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 <div class="accordion-body">
 <ul>
 <li>Time to connect the two models together, see diagram</li>
@@ -2026,7 +2026,7 @@ <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></i
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 <ul>
 <li>Remember that we’re getting our settings from MUSCLE3, they need to be added</li>
@@ -2102,7 +2102,7 @@ <h3 class="code-label">YAML<i aria-hidden="true" data-feather="chevron-left"></i
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-<div id="collapseInstructor4" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor4" aria-labelledby="headingInstructor4">
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 <ul>
 <li>Resources are a bit of an advance topic, so we’re not going into it here</li>
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 </button>
-<div id="collapseInstructor5" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor5" aria-labelledby="headingInstructor5">
+<div id="collapseInstructor5" class="accordion-collapse collapse" aria-labelledby="headingInstructor5" data-bs-parent="#accordionInstructor5">
 <div class="accordion-body">
 <ul>
 <li>To connect, need model functions and configuration, then tie together</li>
@@ -2196,7 +2196,7 @@ <h3 class="callout-title">Challenge 3: Running the coupled simulation<a class="a
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 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>$ python3 coupled_model.py</p>
 </div>
@@ -2212,7 +2212,7 @@ <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
   <h3 class="accordion-header" id="headingInstructor6">
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 </button>
-<div id="collapseInstructor6" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor6" aria-labelledby="headingInstructor6">
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 <div class="accordion-body">
 <ul>
 <li>This one may be a bit more difficult, but needed for C++, Fortran and HPC</li>
@@ -2282,7 +2282,7 @@ <h3 id="run-the-simulation">Run the simulation<a class="anchor" aria-label="anch
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
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 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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 <div class="accordion-body">
 <p>To turn <code>reaction.py</code> into a stand-alone program, you need to add the final section of <code>diffusion.py</code> to the end, slightly modified:</p>
 <pre><code>if __name__ == '__main__':
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index d9a4401..734d218 100644
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diff --git a/instructor/index.html b/instructor/index.html
index 3469ecf..17d670d 100644
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diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 89ca45b..8241f6f 100644
--- a/instructor/instructor-notes.html
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diff --git a/instructor/key-points.html b/instructor/key-points.html
index 02bb20d..ce3d8b1 100644
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+++ b/instructor/key-points.html
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-  "dateModified": "2024-03-19",
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index 8d1aa16..ddb1c23 100644
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+++ b/instructor/profiles.html
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   "dateCreated": "2022-08-16",
-  "dateModified": "2024-03-19",
-  "datePublished": "2024-03-19"
+  "dateModified": "2024-03-26",
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diff --git a/key-points.html b/key-points.html
index 91e4bbb..909a785 100644
--- a/key-points.html
+++ b/key-points.html
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-  "dateModified": "2024-03-19",
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index 76ab13a..3e7ac56 100644
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index 96b21bb..439d9dd 100644
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+++ b/profiles.html
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