diff --git a/components/pages/education/bachelor-page.tsx b/components/pages/education/bachelor-page.tsx
index 9ba8ed4..916c78d 100644
--- a/components/pages/education/bachelor-page.tsx
+++ b/components/pages/education/bachelor-page.tsx
@@ -57,13 +57,13 @@ export default function BachelorPage() {
             </TrackedLink>
           </Button>
           <Button asChild size="sm" variant="outline">
-            <TrackedLink href="http://gbpmneditor.mertendieckmann.de" trackingName="Bachelor - Editor Demo" target="_blank" rel="noreferrer">
+            <TrackedLink href="http://gbpmneditor.merten.tech" trackingName="Bachelor - Editor Demo" target="_blank" rel="noreferrer">
               <ExternalLinkIcon />
               Editor Demo
             </TrackedLink>
           </Button>
           <Button asChild size="sm" variant="outline">
-            <TrackedLink href="http://gbpmnengine.mertendieckmann.de" trackingName="Bachelor - Engine Demo" target="_blank" rel="noreferrer">
+            <TrackedLink href="http://gbpmnengine.merten.tech" trackingName="Bachelor - Engine Demo" target="_blank" rel="noreferrer">
               <ExternalLinkIcon />
               Engine Demo
             </TrackedLink>
@@ -120,7 +120,7 @@ export default function BachelorPage() {
             <ZoomableImage src="/images/bachelor-thesis/editor.png" alt="Gamificated BPMN Editor interface" height={280} />
             <div className="flex gap-2">
               <Button asChild size="sm" variant="outline" className="flex-1">
-                <TrackedLink href="http://gbpmneditor.mertendieckmann.de" trackingName="Bachelor - Editor Demo (card)" target="_blank" rel="noreferrer">
+                <TrackedLink href="http://gbpmneditor.merten.tech" trackingName="Bachelor - Editor Demo (card)" target="_blank" rel="noreferrer">
                   <ExternalLinkIcon /> Live Demo
                 </TrackedLink>
               </Button>
@@ -146,7 +146,7 @@ export default function BachelorPage() {
             <ZoomableImage src="/images/bachelor-thesis/engine-overview.png" alt="Gamificated BPMN Engine runtime UI" height={280} />
             <div className="flex gap-2">
               <Button asChild size="sm" variant="outline" className="flex-1">
-                <TrackedLink href="http://gbpmnengine.mertendieckmann.de" trackingName="Bachelor - Engine Demo (card)" target="_blank" rel="noreferrer">
+                <TrackedLink href="http://gbpmnengine.merten.tech" trackingName="Bachelor - Engine Demo (card)" target="_blank" rel="noreferrer">
                   <ExternalLinkIcon /> Live Demo
                 </TrackedLink>
               </Button>
diff --git a/components/pages/education/master-page.tsx b/components/pages/education/master-page.tsx
index 35bf7b4..22ffe32 100644
--- a/components/pages/education/master-page.tsx
+++ b/components/pages/education/master-page.tsx
@@ -54,7 +54,7 @@ export default function MasterPage() {
             </TrackedLink>
           </Button>
           <Button asChild size="sm" variant="outline">
-            <TrackedLink href="https://gripl.mertendieckmann.de" trackingName="Master - Live Demo" target="_blank" rel="noreferrer">
+            <TrackedLink href="https://gripl.merten.tech" trackingName="Master - Live Demo" target="_blank" rel="noreferrer">
               <ExternalLinkIcon />
               Live Demo
             </TrackedLink>
diff --git a/components/pages/readme-page.tsx b/components/pages/readme-page.tsx
index 978ea72..c81efa1 100644
--- a/components/pages/readme-page.tsx
+++ b/components/pages/readme-page.tsx
@@ -45,7 +45,7 @@ export default function ReadmePage() {
       onOpen: () => openFileById(FileId.ProcessFlow),
       description:
         "Web app for building and executing gamified business processes — drag-and-drop workflow editor, process execution engine, plugin system, and live monitoring.",
-      tech: ["Next.js", "TypeScript", "PostgreSQL", "Supabase", "Docker"],
+      tech: ["Next.js", "TypeScript", "React Flow", "Prisma", "PostgreSQL", "Better-Auth", "Docker"],
     },
     {
       name: "BierTurnier",
diff --git a/content/knowledge-base.md b/content/knowledge-base.md
index 4a61dcd..008f568 100644
--- a/content/knowledge-base.md
+++ b/content/knowledge-base.md
@@ -148,7 +148,7 @@ Node-based drag-and-drop web editor built on React Flow. Supports standard BPMN
 - **Gateway** — routes the process based on variable conditions (e.g., user's previous answer).
 
 Export: to BPMN 2.0 XML (compatible with other BPMN tools) and to internal React Flow JSON. Loading back: only internal JSON format (BPMN→JSON transformation for challenges was not completed due to time constraints — the one unmet requirement).
-[Live Demo](https://gbpmneditor.mertendieckmann.de) · [GitHub](https://github.com/MertenD/gamificated-bpmn-editor)
+[Live Demo](https://gbpmneditor.merten.tech) · [GitHub](https://github.com/MertenD/gamificated-bpmn-editor)
 
 ## BPMN Engine (portfolio file: bachelor)
 Browser-based runtime that imports and executes the gamified BPMN JSON models. Supports all 7 node types: Start, End, Activity, Gateway, Challenge, GamificationEvent, Info.
@@ -157,7 +157,7 @@ Execution loop: load process → start at Start node → render current node's U
 
 Variable management: user inputs stored in named variables; XP, coins, and badges tracked at all times; after each activity the engine checks whether any gamification reward conditions are met.
 
-State management via Zustand. [Live Demo](https://gbpmnengine.mertendieckmann.de) · [GitHub](https://github.com/MertenD/gamificated-bpmn-engine)
+State management via Zustand. [Live Demo](https://gbpmnengine.merten.tech) · [GitHub](https://github.com/MertenD/gamificated-bpmn-engine)
 
 ## 4 Gamification Elements
 
diff --git a/package.json b/package.json
index 83b6432..4236bae 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "portfolio",
-  "version": "0.5.2",
+  "version": "0.5.3",
   "private": true,
   "scripts": {
     "dev": "next dev",