diff --git a/codes/VASP.html b/codes/VASP.html
index 7a76ad5..b2ff187 100644
--- a/codes/VASP.html
+++ b/codes/VASP.html
@@ -41,7 +41,7 @@ <h1>
     <div class="submenu-entry">
         <div class="submenu-img">
             
-                <img src="http://www.vasp.at/wiki/images/vasp_logo_alpha.png" alt="VASP">
+                <img src="https://www.vasp.at/wiki/images/vasp_logo_alpha.png" alt="VASP">
             
         </div>
         <div class="code-card-text">
@@ -63,7 +63,7 @@ <h2>General information</h2>
 
     
         <p>
-            <strong>Documentation</strong>: <a href="http://www.vasp.at/wiki/index.php/LWANNIER90" target="_blank">Go to code documentation</a>
+            <strong>Documentation</strong>: <a href="https://www.vasp.at/wiki/index.php/LWANNIER90" target="_blank">Go to code documentation</a>
         <p>
     
 
@@ -73,7 +73,7 @@ <h2>
     
     <div id='description'>
         <p>
-             <strong>Source code:</strong> <a href="">http://www.vasp.at</a>
+             <strong>Source code:</strong> <a href="">https://www.vasp.at</a>
         </p>
         <p>
             <strong>Short description</strong>: The Vienna Ab initio Simulation Package (VASP) is a computer program for atomic scale materials modelling, e.g. electronic structure calculations and quantum-mechanical molecular dynamics, from first principles.
diff --git a/codes/pythtb.html b/codes/pythtb.html
new file mode 100644
index 0000000..160f2cf
--- /dev/null
+++ b/codes/pythtb.html
@@ -0,0 +1,107 @@
+<!doctype html>
+
+
+
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+
+  <title></title>
+  <meta name="description" content="">
+
+  <link href="https://fonts.googleapis.com/css?family=Noto+Sans" rel="stylesheet">
+  
+    <link rel="stylesheet" href="../static/css/style.css">
+    <link rel="shortcut icon" type="image/svg+xml" href="../static/img/ecosystem-logo.png">
+
+
+  <!--[if lt IE 9]>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
+    <![endif]-->
+  </head>
+
+  <body>
+    
+    <header id='entrytitle' style="background-color: #000; margin: 0; padding: 5px 20px 25px 20px;">
+      <h1>
+        <img src="../static/img/ecosystem-logo.png" width="140px" style="width: 140px; vertical-align: middle;">&nbsp;&nbsp;
+        <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>
+      </h1>
+      <p style="font-size: 90%;"><a href="http://github.com/wannier-developers/wannier-ecosystem-registry" style="color: #999;">[View on GitHub/register your code]</a> </p>
+    </header>
+
+    
+    <div style="max-width: 1200px; margin: auto;">
+      
+<main>
+    <p></p>
+    <p class="go-back"><a href="../index.html">&lt; Go back to the list of codes</a></p>
+
+    <div class="submenu-entry">
+        <div class="submenu-img">
+            
+                <img src="https://www.physics.rutgers.edu/pythtb/_images/graphene.png" alt="PythTB">
+            
+        </div>
+        <div class="code-card-text">
+            <h1>PythTB</h1>
+            <p class="sub-header">
+            
+                
+                    <span class="category">Tight-binding</span>
+                
+                    <span class="category">Berryology and topology</span>
+                
+            
+            </p>
+        </div>
+    </div>
+
+    <h2>General information</h2>
+    
+
+    
+
+    
+        <p>
+            <strong>Documentation</strong>: <a href="https://www.physics.rutgers.edu/pythtb/index.html" target="_blank">Go to code documentation</a>
+        <p>
+    
+
+    <h2>
+        Detailed information
+    </h2>
+    
+    <div id='description'>
+        <p>
+             <strong>Source code:</strong> <a href="">https://pypi.org/project/pythtb/</a>
+        </p>
+        <p>
+            <strong>Short description</strong>: Simple solver for tight binding models for use in condensed matter physics and materials science.
+
+        </p>
+
+    </div>
+    
+
+
+</main>
+
+
+    </div>
+    
+    <footer class="footer">
+      <hr>
+      <div class="side-by-side">
+        <div style="width: 80%;">
+          This page is part of the <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>, listing Wannier-functions enabled codes.
+        </div>
+      </div>
+      
+      
+    </footer>
+    
+  </body>
+
+  </html>
\ No newline at end of file
diff --git a/codes/tbmodels.html b/codes/tbmodels.html
new file mode 100644
index 0000000..39ce1fd
--- /dev/null
+++ b/codes/tbmodels.html
@@ -0,0 +1,107 @@
+<!doctype html>
+
+
+
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+
+  <title></title>
+  <meta name="description" content="">
+
+  <link href="https://fonts.googleapis.com/css?family=Noto+Sans" rel="stylesheet">
+  
+    <link rel="stylesheet" href="../static/css/style.css">
+    <link rel="shortcut icon" type="image/svg+xml" href="../static/img/ecosystem-logo.png">
+
+
+  <!--[if lt IE 9]>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
+    <![endif]-->
+  </head>
+
+  <body>
+    
+    <header id='entrytitle' style="background-color: #000; margin: 0; padding: 5px 20px 25px 20px;">
+      <h1>
+        <img src="../static/img/ecosystem-logo.png" width="140px" style="width: 140px; vertical-align: middle;">&nbsp;&nbsp;
+        <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>
+      </h1>
+      <p style="font-size: 90%;"><a href="http://github.com/wannier-developers/wannier-ecosystem-registry" style="color: #999;">[View on GitHub/register your code]</a> </p>
+    </header>
+
+    
+    <div style="max-width: 1200px; margin: auto;">
+      
+<main>
+    <p></p>
+    <p class="go-back"><a href="../index.html">&lt; Go back to the list of codes</a></p>
+
+    <div class="submenu-entry">
+        <div class="submenu-img">
+            
+                <img src="https://tbmodels.greschd.ch/en/latest/_images/tbmodels_logo.jpg" alt="TBmodels">
+            
+        </div>
+        <div class="code-card-text">
+            <h1>TBmodels</h1>
+            <p class="sub-header">
+            
+                
+                    <span class="category">Tight-binding</span>
+                
+                    <span class="category">Berryology and topology</span>
+                
+            
+            </p>
+        </div>
+    </div>
+
+    <h2>General information</h2>
+    
+
+    
+
+    
+        <p>
+            <strong>Documentation</strong>: <a href="https://tbmodels.greschd.ch/en/latest/tutorial.html" target="_blank">Go to code documentation</a>
+        <p>
+    
+
+    <h2>
+        Detailed information
+    </h2>
+    
+    <div id='description'>
+        <p>
+             <strong>Source code:</strong> <a href="https://github.com/Z2PackDev/TBmodels">github.com</a>
+        </p>
+        <p>
+            <strong>Short description</strong>: Bmodels is a Python package for evaluating tight-binding models. It features methods for reading and writing tight-binding models to various formats, and evaluating the Hamiltonian and eigenvalues of the system. It is considerably faster than comparable packages, enabling it to handle first-principles derived tight-binding models.
+
+        </p>
+
+    </div>
+    
+
+
+</main>
+
+
+    </div>
+    
+    <footer class="footer">
+      <hr>
+      <div class="side-by-side">
+        <div style="width: 80%;">
+          This page is part of the <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>, listing Wannier-functions enabled codes.
+        </div>
+      </div>
+      
+      
+    </footer>
+    
+  </body>
+
+  </html>
\ No newline at end of file
diff --git a/codes/wanniertools.html b/codes/wanniertools.html
new file mode 100644
index 0000000..c144502
--- /dev/null
+++ b/codes/wanniertools.html
@@ -0,0 +1,107 @@
+<!doctype html>
+
+
+
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+
+  <title></title>
+  <meta name="description" content="">
+
+  <link href="https://fonts.googleapis.com/css?family=Noto+Sans" rel="stylesheet">
+  
+    <link rel="stylesheet" href="../static/css/style.css">
+    <link rel="shortcut icon" type="image/svg+xml" href="../static/img/ecosystem-logo.png">
+
+
+  <!--[if lt IE 9]>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
+    <![endif]-->
+  </head>
+
+  <body>
+    
+    <header id='entrytitle' style="background-color: #000; margin: 0; padding: 5px 20px 25px 20px;">
+      <h1>
+        <img src="../static/img/ecosystem-logo.png" width="140px" style="width: 140px; vertical-align: middle;">&nbsp;&nbsp;
+        <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>
+      </h1>
+      <p style="font-size: 90%;"><a href="http://github.com/wannier-developers/wannier-ecosystem-registry" style="color: #999;">[View on GitHub/register your code]</a> </p>
+    </header>
+
+    
+    <div style="max-width: 1200px; margin: auto;">
+      
+<main>
+    <p></p>
+    <p class="go-back"><a href="../index.html">&lt; Go back to the list of codes</a></p>
+
+    <div class="submenu-entry">
+        <div class="submenu-img">
+            
+                <img src="https://github.com/quanshengwu/wannier_tools/raw/master/wt-logo.jpg" alt="WannierTools">
+            
+        </div>
+        <div class="code-card-text">
+            <h1>WannierTools</h1>
+            <p class="sub-header">
+            
+                
+                    <span class="category">Tight-binding</span>
+                
+                    <span class="category">Berryology and topology</span>
+                
+            
+            </p>
+        </div>
+    </div>
+
+    <h2>General information</h2>
+    
+
+    
+
+    
+        <p>
+            <strong>Documentation</strong>: <a href="http://www.wanniertools.com/#" target="_blank">Go to code documentation</a>
+        <p>
+    
+
+    <h2>
+        Detailed information
+    </h2>
+    
+    <div id='description'>
+        <p>
+             <strong>Source code:</strong> <a href="https://github.com/quanshengwu/wannier_tools">github.com</a>
+        </p>
+        <p>
+            <strong>Short description</strong>: An open-source software package for novel topological materials.
+
+        </p>
+
+    </div>
+    
+
+
+</main>
+
+
+    </div>
+    
+    <footer class="footer">
+      <hr>
+      <div class="side-by-side">
+        <div style="width: 80%;">
+          This page is part of the <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>, listing Wannier-functions enabled codes.
+        </div>
+      </div>
+      
+      
+    </footer>
+    
+  </body>
+
+  </html>
\ No newline at end of file
diff --git a/codes/z2pack.html b/codes/z2pack.html
new file mode 100644
index 0000000..2647b81
--- /dev/null
+++ b/codes/z2pack.html
@@ -0,0 +1,105 @@
+<!doctype html>
+
+
+
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+
+  <title></title>
+  <meta name="description" content="">
+
+  <link href="https://fonts.googleapis.com/css?family=Noto+Sans" rel="stylesheet">
+  
+    <link rel="stylesheet" href="../static/css/style.css">
+    <link rel="shortcut icon" type="image/svg+xml" href="../static/img/ecosystem-logo.png">
+
+
+  <!--[if lt IE 9]>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
+    <![endif]-->
+  </head>
+
+  <body>
+    
+    <header id='entrytitle' style="background-color: #000; margin: 0; padding: 5px 20px 25px 20px;">
+      <h1>
+        <img src="../static/img/ecosystem-logo.png" width="140px" style="width: 140px; vertical-align: middle;">&nbsp;&nbsp;
+        <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>
+      </h1>
+      <p style="font-size: 90%;"><a href="http://github.com/wannier-developers/wannier-ecosystem-registry" style="color: #999;">[View on GitHub/register your code]</a> </p>
+    </header>
+
+    
+    <div style="max-width: 1200px; margin: auto;">
+      
+<main>
+    <p></p>
+    <p class="go-back"><a href="../index.html">&lt; Go back to the list of codes</a></p>
+
+    <div class="submenu-entry">
+        <div class="submenu-img">
+            
+                <img src="https://z2pack.greschd.ch/en/latest/_static/z2_logo_150.png" alt="Z2Pack">
+            
+        </div>
+        <div class="code-card-text">
+            <h1>Z2Pack</h1>
+            <p class="sub-header">
+            
+                
+                    <span class="category">Berryology and topology</span>
+                
+            
+            </p>
+        </div>
+    </div>
+
+    <h2>General information</h2>
+    
+
+    
+
+    
+        <p>
+            <strong>Documentation</strong>: <a href="https://z2pack.greschd.ch/" target="_blank">Go to code documentation</a>
+        <p>
+    
+
+    <h2>
+        Detailed information
+    </h2>
+    
+    <div id='description'>
+        <p>
+             <strong>Source code:</strong> <a href="https://github.com/Z2PackDev/Z2Pack">github.com</a>
+        </p>
+        <p>
+            <strong>Short description</strong>: Z2Pack automates the calculation of topological numbers of band-structures. It works with first-principles calculations (z2pack.fp), tight-binding models (z2pack.tb) and explicit Hamiltonian matrices (z2pack.hm).
+
+        </p>
+
+    </div>
+    
+
+
+</main>
+
+
+    </div>
+    
+    <footer class="footer">
+      <hr>
+      <div class="side-by-side">
+        <div style="width: 80%;">
+          This page is part of the <a href="https://wannier-developers.github.io/wannier-ecosystem-registry/">Wannier-Functions Software Ecosystem Registry</a>, listing Wannier-functions enabled codes.
+        </div>
+      </div>
+      
+      
+    </footer>
+    
+  </body>
+
+  </html>
\ No newline at end of file
diff --git a/codes_meta.json b/codes_meta.json
index 42d8d44..29593b3 100644
--- a/codes_meta.json
+++ b/codes_meta.json
@@ -3561,14 +3561,14 @@
       "categories": [
         "ab-initio_engines"
       ],
-      "hosted_on": "http://www.vasp.at",
+      "hosted_on": "https://www.vasp.at",
       "metadata": {
         "description": "The Vienna Ab initio Simulation Package (VASP) is a computer program for atomic scale materials modelling, e.g. electronic structure calculations and quantum-mechanical molecular dynamics, from first principles.\n",
-        "documentation_url": "http://www.vasp.at/wiki/index.php/LWANNIER90",
+        "documentation_url": "https://www.vasp.at/wiki/index.php/LWANNIER90",
         "title": "VASP",
-        "logo": "http://www.vasp.at/wiki/images/vasp_logo_alpha.png"
+        "logo": "https://www.vasp.at/wiki/images/vasp_logo_alpha.png"
       },
-      "logo": "http://www.vasp.at/wiki/images/vasp_logo_alpha.png",
+      "logo": "https://www.vasp.at/wiki/images/vasp_logo_alpha.png",
       "name": "VASP",
       "subpage": "codes/VASP.html"
     },
@@ -3693,6 +3693,460 @@
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   },
   "categories": {
diff --git a/index.html b/index.html
index 96453a5..5c594bc 100644
--- a/index.html
+++ b/index.html
@@ -35,7 +35,7 @@ <h1>
     <div style="max-width: 1200px; margin: auto;">
       
 <main>
-    <h2>Total number of codes: 5</h2>
+    <h2>Total number of codes: 9</h2>
 
     <h1>
         Codes
@@ -83,6 +83,44 @@ <h2><a href="codes/ABINIT.html">ABINIT</a>
         
         
 
+        <div class="submenu-entry">
+            <div class="submenu-img">
+                <a href="codes/pythtb.html">
+                
+                    <!-- img with error handler for dead links (fallback to ecosystem logo) -->
+                    <img src="https://www.physics.rutgers.edu/pythtb/_images/graphene.png" alt="PythTB"
+                        onerror="this.src='static/img/ecosystem-logo.png';this.onerror='';">
+                
+                </a>
+            </div>
+            <div class="submenu-text">
+                <h2><a href="codes/pythtb.html">PythTB</a>
+                
+                    
+                        <span class="category">Tight-binding</span>
+                    
+                        <span class="category">Berryology and topology</span>
+                    
+                
+                </h2>
+
+                
+                    <p class=description>Simple solver for tight binding models for use in condensed matter physics and materials science.
+</p>
+                
+
+                <p>
+                
+                </p>
+
+                
+                <p class='details'><a href="codes/pythtb.html">Show details</a></p>
+            </div>
+        </div>
+
+        
+        
+
         <div class="submenu-entry">
             <div class="submenu-img">
                 <a href="codes/QuantumESPRESSO.html">
@@ -119,12 +157,50 @@ <h2><a href="codes/QuantumESPRESSO.html">Quantum ESPRESSO</a>
         
         
 
+        <div class="submenu-entry">
+            <div class="submenu-img">
+                <a href="codes/tbmodels.html">
+                
+                    <!-- img with error handler for dead links (fallback to ecosystem logo) -->
+                    <img src="https://tbmodels.greschd.ch/en/latest/_images/tbmodels_logo.jpg" alt="TBmodels"
+                        onerror="this.src='static/img/ecosystem-logo.png';this.onerror='';">
+                
+                </a>
+            </div>
+            <div class="submenu-text">
+                <h2><a href="codes/tbmodels.html">TBmodels</a>
+                
+                    
+                        <span class="category">Tight-binding</span>
+                    
+                        <span class="category">Berryology and topology</span>
+                    
+                
+                </h2>
+
+                
+                    <p class=description>Bmodels is a Python package for evaluating tight-binding models. It features methods for reading and writing tight-binding models to various formats, and evaluating the Hamiltonian and eigenvalues of the system. It is considerably faster than comparable packages, enabling it to handle first-principles derived tight-binding models.
+</p>
+                
+
+                <p>
+                
+                </p>
+
+                
+                <p class='details'><a href="codes/tbmodels.html">Show details</a></p>
+            </div>
+        </div>
+
+        
+        
+
         <div class="submenu-entry">
             <div class="submenu-img">
                 <a href="codes/VASP.html">
                 
                     <!-- img with error handler for dead links (fallback to ecosystem logo) -->
-                    <img src="http://www.vasp.at/wiki/images/vasp_logo_alpha.png" alt="VASP"
+                    <img src="https://www.vasp.at/wiki/images/vasp_logo_alpha.png" alt="VASP"
                         onerror="this.src='static/img/ecosystem-logo.png';this.onerror='';">
                 
                 </a>
@@ -155,6 +231,44 @@ <h2><a href="codes/VASP.html">VASP</a>
         
         
 
+        <div class="submenu-entry">
+            <div class="submenu-img">
+                <a href="codes/wanniertools.html">
+                
+                    <!-- img with error handler for dead links (fallback to ecosystem logo) -->
+                    <img src="https://github.com/quanshengwu/wannier_tools/raw/master/wt-logo.jpg" alt="WannierTools"
+                        onerror="this.src='static/img/ecosystem-logo.png';this.onerror='';">
+                
+                </a>
+            </div>
+            <div class="submenu-text">
+                <h2><a href="codes/wanniertools.html">WannierTools</a>
+                
+                    
+                        <span class="category">Tight-binding</span>
+                    
+                        <span class="category">Berryology and topology</span>
+                    
+                
+                </h2>
+
+                
+                    <p class=description>An open-source software package for novel topological materials.
+</p>
+                
+
+                <p>
+                
+                </p>
+
+                
+                <p class='details'><a href="codes/wanniertools.html">Show details</a></p>
+            </div>
+        </div>
+
+        
+        
+
         <div class="submenu-entry">
             <div class="submenu-img">
                 <a href="codes/WIEN2k.html">
@@ -226,6 +340,42 @@ <h2><a href="codes/YAMBO.html">Yambo</a>
 
         
         
+
+        <div class="submenu-entry">
+            <div class="submenu-img">
+                <a href="codes/z2pack.html">
+                
+                    <!-- img with error handler for dead links (fallback to ecosystem logo) -->
+                    <img src="https://z2pack.greschd.ch/en/latest/_static/z2_logo_150.png" alt="Z2Pack"
+                        onerror="this.src='static/img/ecosystem-logo.png';this.onerror='';">
+                
+                </a>
+            </div>
+            <div class="submenu-text">
+                <h2><a href="codes/z2pack.html">Z2Pack</a>
+                
+                    
+                        <span class="category">Berryology and topology</span>
+                    
+                
+                </h2>
+
+                
+                    <p class=description>Z2Pack automates the calculation of topological numbers of band-structures. It works with first-principles calculations (z2pack.fp), tight-binding models (z2pack.tb) and explicit Hamiltonian matrices (z2pack.hm).
+</p>
+                
+
+                <p>
+                
+                </p>
+
+                
+                <p class='details'><a href="codes/z2pack.html">Show details</a></p>
+            </div>
+        </div>
+
+        
+        
     </div>
 
 </main>
