add sitemap and robots

gdpr_notice.html

@@ -5,6 +5,8 @@
     <meta name="description" content="GDPR Notice | Veit Heller—Technologist at Large">
     <meta name="author" content="Veit Heller">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="robots" content="noindex, follow">
+    <link rel="canonical" href="https://veitheller.de/gdpr_notice.html">
     <link rel="icon" href="data:;base64,iVBORw0KGgo=">
     <style>
       @font-face {

imprint.html

@@ -5,6 +5,8 @@
     <meta name="description" content="Imprint | Veit Heller—Technologist at Large">
     <meta name="author" content="Veit Heller">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="robots" content="noindex, follow">
+    <link rel="canonical" href="https://veitheller.de/imprint.html">
     <link rel="icon" href="data:;base64,iVBORw0KGgo=">
     <style>
       @font-face {

index.html

@@ -11,9 +11,14 @@
     <meta property="og:title" content="Veit Heller—Technologist at Large">
     <meta property="og:description" content="Veit Heller—Technologist at Large. Independent consultant for software architecture, security, and network automation based in Erlangen, Germany.">
     <meta property="og:locale" content="en_US">
-    <meta name="twitter:card" content="summary">
+    <meta property="og:image" content="https://veitheller.de/og.png">
+    <meta property="og:image:width" content="1200">
+    <meta property="og:image:height" content="630">
+    <meta property="og:image:alt" content="Veit Heller—Technologist at Large">
+    <meta name="twitter:card" content="summary_large_image">
     <meta name="twitter:title" content="Veit Heller—Technologist at Large">
     <meta name="twitter:description" content="Independent consultant for software architecture, security, and network automation based in Erlangen, Germany.">
+    <meta name="twitter:image" content="https://veitheller.de/og.png">
     <link rel="icon" href="data:;base64,iVBORw0KGgo=">
     <script defer data-domain="veitheller.de" src="https://plausible.io/js/script.tagged-events.outbound-links.js"></script>
     <style>

robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://veitheller.de/sitemap.xml

sitemap.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://veitheller.de/</loc>
+    <lastmod>2026-05-01</lastmod>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://veitheller.de/talks.html</loc>
+    <lastmod>2026-05-01</lastmod>
+    <priority>0.8</priority>
+  </url>
+</urlset>

talks.html

@@ -11,9 +11,14 @@
   <meta property="og:title" content="Talks & Publications — Veit Heller">
   <meta property="og:description" content="Workshops, talks, and publications by Veit Heller on threat modelling, ISMS, SSDLC, network automation, and programming languages.">
   <meta property="og:locale" content="en_US">
-  <meta name="twitter:card" content="summary">
+  <meta property="og:image" content="https://veitheller.de/og.png">
+  <meta property="og:image:width" content="1200">
+  <meta property="og:image:height" content="630">
+  <meta property="og:image:alt" content="Veit Heller—Technologist at Large">
+  <meta name="twitter:card" content="summary_large_image">
   <meta name="twitter:title" content="Talks & Publications — Veit Heller">
   <meta name="twitter:description" content="Workshops, talks, and publications by Veit Heller on threat modelling, ISMS, SSDLC, network automation, and programming languages.">
+  <meta name="twitter:image" content="https://veitheller.de/og.png">
   <link rel="icon" href="data:;base64,iVBORw0KGgo=">
   <script defer data-domain="veitheller.de" src="https://plausible.io/js/script.tagged-events.outbound-links.js"></script>
   <title>Talks & Publications — Veit Heller</title>
@@ -226,6 +231,12 @@
     </section>
 
     <section id="talks" class="panel" role="tabpanel" aria-labelledby="label-talks">
+      <article>
+        <h3><i>Upcoming:</i> AI Architecture Katas: Learning by Building Small Models in Plain Python </h3>
+        <p><em>EuroPython, 2026</em><br>
+        A talk about how to build your own small but capable models for larning, and how to approach the big and scary world of AI/LLM research.</p>
+      </article>
+
       <article>
         <h3><i>Upcoming:</i> Type Systems You Might Not Know (But Will Love)</h3>
         <p><em>WeAreDevelopers World Congress Europe, 2026</em><br>
@@ -236,7 +247,6 @@
         <h3>Von der Cloud ins Rack – Wie Netzautomatisierung souveräne RZ-Umgebungen ermöglicht</h3>
         <p><em>Rack & Stack 2026</em><br>
         A German talk on high fidelity network automation to drive the adoption of sovereign data infrastructure.</p>
-        <p><i>Recording pending</i></p>
       </article>
 
       <article>