diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index bb9dfac..7a3cfc9 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -417,6 +417,20 @@
                   "icon": "lucide-file",
                   "title": "Business Ideas"
                 }
+              },
+              {
+                "id": "b8b727ab92616fd4",
+                "type": "leaf",
+                "state": {
+                  "type": "markdown",
+                  "state": {
+                    "file": "Temporary/Ralph Wiggum Technique for AI Coding.md",
+                    "mode": "source",
+                    "source": false
+                  },
+                  "icon": "lucide-file",
+                  "title": "Ralph Wiggum Technique for AI Coding"
+                }
               }
             ],
             "currentTab": 2
@@ -434,6 +448,8 @@
   },
   "active": "8225090775892c9b",
   "lastOpenFiles": [
+    "Temporary/Ralph Wiggum Technique for AI Coding.md",
+    "2 Personal/Lists/Business Ideas.md",
     "2 Personal/Home Lab/NAS/Backup Strategy.md",
     "Temporary/Madgwick Filter.md",
     "0 Journal/0 Daily/2026-01-10.md",
@@ -446,7 +462,6 @@
     "99 Work/0 OneSec/OneSecNotes/Handover Planning.md",
     "Attachments/ESPSomfyRTS 2026-01-18T16_26_16.backup",
     "Attachments/Pasted image 20260118150817.png",
-    "Temporary/Ralph Wiggum Technique for AI Coding.md",
     "99 Work/Jobhunt/Interview Questions.md",
     "Temporary/Untitled 3.md",
     "2 Personal/Home Lab/Pangolin Installation.md",
@@ -462,7 +477,6 @@
     "Temporary/Untitled 2.md",
     "2 Personal/Lists/Packlisten/Packliste - Skitour.md",
     "0 Journal/0 Daily/2026-01-03.md",
-    "0 Journal/0 Daily/2026-01-02.md",
     "Attachments/Pasted image 20251202214228.png",
     "2 Personal/1 Skills/AI",
     "2 Personal/Home Lab/Baerhalten",
diff --git a/2 Personal/Lists/Business Ideas.md b/2 Personal/Lists/Business Ideas.md
index 19e1ded..f9c6a99 100644
--- a/2 Personal/Lists/Business Ideas.md	
+++ b/2 Personal/Lists/Business Ideas.md	
@@ -57,6 +57,7 @@ Diese Liste kann auch mit `#idea/startup` oder mit `#business-idea` ergänzt wer
 - AI-based research books: write a research article / research book which interactively adds more research content with well established resources to become an expert in a topic (e.g. drone regulations in switzerland)
 - 3d model library.
 - app for organizing pubquizzes (similar to [Mutant Teapot - Puzzle Games for Curious Minds](https://mutantteapot.com/))
+- course website (maybe like aihero.dev?) but for apprenticeships: woodworking, metalworking, etc. when AI replaces all pc jobs people need something to do. --> create marketplace for teaching. Yes people can watch everything on youtube, but lets say here in switzerland you have a local youtuber that can easily organize workshops and book private lessons. --> much more personal.
 
 ## Medtech 
 - use differential cameras to visualize airflow to teach deaf people how the airflow is when speaking to learn it properly
diff --git a/Temporary/Ralph Wiggum Technique for AI Coding.md b/Temporary/Ralph Wiggum Technique for AI Coding.md
index 2edfed4..6452fbb 100644
--- a/Temporary/Ralph Wiggum Technique for AI Coding.md	
+++ b/Temporary/Ralph Wiggum Technique for AI Coding.md	
@@ -15,3 +15,5 @@ Apparently, Chat-GPT 5.2 is much better than Claude Opus 4.5. The latter takes m
 ## Sources
 [claude-code/plugins/ralph-wiggum at main · anthropics/claude-code · GitHub](https://github.com/anthropics/claude-code/tree/main/plugins/ralph-wiggum?utm_source=www.therundown.ai&utm_medium=newsletter&utm_campaign=murati-s-co-founders-return-to-openai&_bhlid=451be3cfdfe07e2ed4bb075c84441916ce9809f4)
 ["Ralph Wiggum" AI Agent will 10x Claude Code/Amp - YouTube](https://www.youtube.com/watch?v=RpvQH0r0ecM)
+[Ship working code while you sleep with the Ralph Wiggum technique - YouTube](https://www.youtube.com/watch?v=_IK18goX4X8)
+