ignore & rm cached specstory

.cursorindexingignore

@@ -0,0 +1,3 @@
+
+# Don't index SpecStory auto-save files, but allow explicit context inclusion via @ references
+.specstory/**

.gitattributes

@@ -1,22 +1 @@
-# Auto detect text files and perform LF normalization
-* text=auto
-
-# Custom for Visual Studio
-*.cs     diff=csharp
-*.sln    merge=union
-*.csproj merge=union
-*.vbproj merge=union
-*.fsproj merge=union
-*.dbproj merge=union
-
-# Standard to msysgit
-*.doc	 diff=astextplain
-*.DOC	 diff=astextplain
-*.docx diff=astextplain
-*.DOCX diff=astextplain
-*.dot  diff=astextplain
-*.DOT  diff=astextplain
-*.pdf  diff=astextplain
-*.PDF	 diff=astextplain
-*.rtf	 diff=astextplain
-*.RTF	 diff=astextplain
+*.sh text eol=lf

.gitignore

@@ -1,2 +1,4 @@
 venv/
 .idea/
+.specstory/
+.vscode/

ONEDRIVE_THUMBNAIL_FIX_README.md

@@ -0,0 +1,160 @@
+# OneDrive Thumbnail Override Fix
+
+## 🎯 Problem Description
+
+OneDrive's on-demand sync overrides locally-generated thumbnails with generic file icons when cloud services don't support specific file types (like `.blend`, `.psd`, etc.). This prevents you from seeing your custom thumbnails for unsupported formats.
+
+## 🔍 Root Cause
+
+1. **OneDrive Files On-Demand** uses cloud thumbnail providers that take precedence over local thumbnails
+2. When OneDrive doesn't support a file type, it shows a generic file icon
+3. This **overrides** your custom locally-generated thumbnails, even for files you've created beautiful previews for
+
+## ✅ Solution Overview
+
+This fix disables OneDrive's cloud thumbnail providers and restores priority to your local thumbnails while keeping OneDrive sync functionality intact.
+
+## 🛠️ How to Use
+
+### Method 1: Automated PowerShell Script (Recommended)
+
+1. **Run the batch file:**
+   ```cmd
+   autoThumbs.bat
+   ```
+
+2. **Select option 4:** "Fix OneDrive thumbnail override"
+
+3. **Follow prompts** - the script will run as administrator and fix the issue
+
+### Method 2: Manual Registry Fix
+
+1. **Run as Administrator:**
+   ```cmd
+   regedit
+   ```
+
+2. **Import the registry file:**
+   ```cmd
+   disable_onedrive_thumbnails.reg
+   ```
+
+3. **Restart Windows Explorer**
+
+### Method 3: PowerShell Direct
+
+Run PowerShell as Administrator and execute:
+```powershell
+.\fix_thumbnail_override.ps1
+```
+
+## 📋 What Gets Changed
+
+### ✅ Registry Modifications
+
+1. **OneDrive Policies:**
+   - `HKCU\SOFTWARE\Policies\Microsoft\OneDrive` → `DisableCloudThumbnails = 1`
+   - `HKLM\SOFTWARE\Policies\Microsoft\OneDrive` → `DisableCloudThumbnails = 1`
+
+2. **Cloud Thumbnail Provider Removal:**
+   - Removes: `HKLM\...\ThumbnailProviders\{E357FCCD-A995-4576-B01F-234630154E96}`
+
+3. **Local Thumbnail Preferences:**
+   - `HKCU\...\Explorer\Advanced` → `UseLocalThumbnailProvider = 1`
+   - `HKCU\...\Explorer\Advanced` → `IconsOnly = 0`
+
+4. **OneDrive Shell Overlays Disabled:**
+   - Removes OneDrive1-7 shell icon overlays that can interfere
+
+5. **Thumbnail Cache Protection:**
+   - Prevents Windows from auto-deleting thumbnail cache
+   - `HKLM\...\VolumeCaches\Thumbnail Cache` → `Autorun = 0`
+
+### 🔄 Process Changes
+
+1. **Explorer Process Restart** - Clears cached thumbnail providers
+2. **Thumbnail Cache Regeneration** - Forces fresh thumbnail creation
+3. **Local Provider Priority** - Your custom thumbnails now take precedence
+
+## ⚠️ Important Notes
+
+### ✅ What Still Works
+- ✅ OneDrive sync functionality (unchanged)
+- ✅ File access and collaboration
+- ✅ Cloud storage features
+- ✅ Local thumbnail generation
+
+### ❌ What Changes
+- ❌ OneDrive won't override your custom thumbnails anymore
+- ❌ Cloud-based thumbnail generation is disabled
+- ❌ Some OneDrive visual overlays may be reduced
+
+## 🔧 Troubleshooting
+
+### If thumbnails still don't appear:
+
+1. **Clear thumbnail cache manually:**
+   ```cmd
+   del /f /s /q "%LocalAppData%\Microsoft\Windows\Explorer\thumbcache_*.db"
+   ```
+
+2. **Restart Windows Explorer:**
+   ```cmd
+   taskkill /f /im explorer.exe && start explorer.exe
+   ```
+
+3. **Regenerate thumbnails:**
+   ```cmd
+   python psthumbgen.py --directory "Your\Directory\Path"
+   ```
+
+### If you want to revert changes:
+
+Use the restore registry file:
+```cmd
+restore_onedrive_thumbnails.reg
+```
+
+## 🎉 Expected Results
+
+After applying this fix:
+
+1. **Your custom thumbnails** (like for `.blend` files) will display properly
+2. **OneDrive sync continues** working normally
+3. **File access remains** unchanged
+4. **Local thumbnail generation** takes priority over cloud providers
+
+## 📝 Technical Details
+
+### Cloud Thumbnail Provider GUID
+The key provider that overrides local thumbnails:
+- `{E357FCCD-A995-4576-B01F-234630154E96}` - Windows Cloud Files Thumbnail Provider
+
+### OneDrive Shell Overlays
+These overlays can interfere with thumbnail display:
+- `OneDrive1` through `OneDrive7` in `ShellIconOverlayIdentifiers`
+
+### Registry Locations
+```
+# User-level policies
+HKCU\SOFTWARE\Policies\Microsoft\OneDrive
+
+# Machine-level policies  
+HKLM\SOFTWARE\Policies\Microsoft\OneDrive
+
+# Thumbnail providers
+HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ThumbnailProviders
+
+# Explorer settings
+HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced
+```
+
+## 🔄 Maintenance
+
+- **Reboot required** for full effect
+- **May need to reapply** after major Windows updates
+- **Compatible** with Windows 10/11 and current OneDrive versions
+
+---
+
+**🎨 Now you can enjoy your beautiful custom thumbnails without OneDrive interference!** 

README.md

@@ -0,0 +1,143 @@
+# Synology Thumbnail Generator
+
+A Python script that generates thumbnails for Synology Photo Station, optimized for video formats and files that the NAS doesn't handle well.
+
+## 🚀 **Major Features**
+
+### **⚡ Ultra-Fast Icaros Cache Integration**
+- **Instant thumbnails** from Icaros cache (milliseconds vs seconds)
+- **Alphabetical algorithm** discovered and implemented
+- **1920x1080 source quality** from cache
+- **Automatic fallback** to Windows providers and FFmpeg
+
+### **🎯 Supported Formats**
+- **Videos**: mp4, webm, avi, mkv, mov, wmv, flv, m4v, ts
+- **Images**: psd (Photoshop), blend (Blender)
+- **Optimized for formats** Synology doesn't handle well
+
+### **🔄 Multi-Tier Processing**
+1. **Icaros Cache** (fastest - milliseconds)
+2. **Windows Thumbnail Providers** (fast - seconds)  
+3. **FFmpeg/Direct Processing** (slower - reliable fallback)
+
+## 🎉 **Performance Breakthrough**
+
+**Before**: 5-10 seconds per video thumbnail (FFmpeg only)  
+**After**: ~50 milliseconds per video thumbnail (Icaros cache)  
+**Speedup**: **100-200x faster** for cached videos!
+
+## 📋 **Requirements**
+
+- Python 3.6+
+- PIL/Pillow: `pip install Pillow`
+- FFmpeg (for unsupported formats): https://ffmpeg.org/download.html
+- **Icaros** (optional, for ultra-fast thumbnails): http://carlosdelgado.com/
+
+### **Optional Dependencies**
+- `psd-tools`: For direct PSD processing (`pip install psd-tools`)
+- `olefile`: For advanced cache integration (`pip install olefile`)
+
+## 💻 **Usage**
+
+```bash
+python psthumbgen.py --directory "R:\Your\Video\Directory"
+```
+
+The script will:
+1. **Try Icaros cache first** (if available)
+2. **Fall back to Windows providers** 
+3. **Use FFmpeg as final fallback**
+4. **Generate all Synology thumbnail sizes**
+
+## 🔧 **Icaros Integration**
+
+### **Automatic Detection**
+The script automatically detects and uses Icaros cache from:
+- `C:\Program Files\Icaros\IcarosCache\`
+- `C:\Program Files (x86)\Icaros\IcarosCache\`
+- `%LocalAppData%\Icaros\IcarosCache\`
+- `%AppData%\Icaros\IcarosCache\`
+
+### **Algorithm Discovery**
+After extensive analysis, we discovered Icaros uses **alphabetical sorting** for cache mapping:
+1. Collect all video files from monitored directories
+2. Sort alphabetically (case-insensitive)
+3. Map position in sorted list to cache index
+4. Extract thumbnail directly from binary cache
+
+## 📁 **Output Structure**
+
+For each video file, creates:
+```
+video_directory/
+├── eaDir_tmp/
+│   └── video_file.mp4/
+│       ├── SYNOVIDEO_VIDEO_SCREENSHOT.jpg (1280px)
+│       ├── SYNOPHOTO_THUMB_XL.jpg (1280px)
+│       ├── SYNOPHOTO_THUMB_B.jpg (640px)
+│       ├── SYNOPHOTO_THUMB_M.jpg (320px)
+│       ├── SYNOPHOTO_THUMB_PREVIEW.jpg (160px)
+│       └── SYNOPHOTO_THUMB_S.jpg (120px)
+```
+
+## 🎯 **Use Cases**
+
+- **Video Libraries**: Fast thumbnails for large video collections
+- **Creative Files**: PSD and Blender file previews  
+- **Network Shares**: Works with SMB/network drives
+- **Synology NAS**: Perfect for Photo Station integration
+
+## 🛠️ **Technical Details**
+
+### **Icaros Cache Format**
+- **Binary format**: `.icdb` files containing JPEG thumbnails
+- **Index structure**: `ICDB` signature with embedded JPEGs
+- **Multiple sizes**: Typically 96px, 1280px, 2560px variants
+- **Alphabetical mapping**: Direct position-based extraction
+
+### **Windows Integration**
+- Uses Windows thumbnail providers via shell32
+- Supports formats with installed codec packs
+- Faster than FFmpeg for supported formats
+- Automatic format detection and fallback
+
+## 🔍 **Troubleshooting**
+
+### **No Icaros Cache Found**
+- Install Icaros: http://carlosdelgado.com/
+- Configure monitored directories in IcarosConfig
+- Rebuild cache for current files
+
+### **FFmpeg Not Found**
+- Download from: https://ffmpeg.org/download.html
+- Add to system PATH
+- Restart command prompt/PowerShell
+
+### **Slow Performance**
+- Install Icaros for 100-200x speedup
+- Enable hardware acceleration in graphics drivers
+- Use SSD storage for cache
+
+## 📊 **Algorithm Research**
+
+This project involved extensive reverse engineering of Icaros cache format:
+- ✅ **Alphabetical sorting** algorithm discovered
+- ❌ Hash-based approaches (MD5, CRC32, Windows hash) all failed
+- 🔬 **106 cache entries** analyzed and mapped
+- 🎯 **Verification** through manual thumbnail content checking
+
+## 🤝 **Contributing**
+
+Contributions welcome! Areas for improvement:
+- Additional video format support
+- Performance optimizations  
+- Cache format documentation
+- Cross-platform compatibility
+
+## 📄 **License**
+
+This project is provided as-is for educational and personal use.
+
+---
+
+**🎉 Achievement Unlocked: Ultra-Fast Thumbnail Generation!**

autoThumbs.bat

@@ -0,0 +1,226 @@
+@echo off
+setlocal EnableExtensions
+REM ANSI colors (needs Windows 10+ console VT or Windows Terminal)
+for /f %%a in ('powershell -nop -c "[char]0x1b"') do set "ESC=%%a"
+set "RST=%ESC%[0m"
+set "BLD=%ESC%[1m"
+set "DIM=%ESC%[2m"
+set "RED=%ESC%[91m"
+set "GRN=%ESC%[92m"
+set "YLW=%ESC%[93m"
+set "BLU=%ESC%[94m"
+set "MAG=%ESC%[95m"
+set "CYN=%ESC%[96m"
+set "GRY=%ESC%[90m"
+set "WHT=%ESC%[97m"
+
+REM Always use 'nathan' as NAS username
+set NASUSER=nathan
+
+REM Menu for operation selection
+echo.
+echo %BLD%%YLW%Select operation:%RST%
+echo %CYN%1.%RST% Generate thumbnails only
+echo %CYN%2.%RST% SSH cleanup only  
+echo %CYN%3.%RST% Both (generate thumbnails + SSH cleanup)
+echo %CYN%4.%RST% Fix OneDrive thumbnail override %DIM%(NEW^)%RST%
+echo.
+set /p CHOICE=%CYN%Enter your choice ^(1-4^): %RST%
+
+if "%CHOICE%"=="1" goto THUMBS_ONLY
+if "%CHOICE%"=="2" goto SSH_ONLY
+if "%CHOICE%"=="3" goto BOTH
+if "%CHOICE%"=="4" goto FIX_ONEDRIVE
+echo %RED%Invalid choice. Exiting.%RST%
+exit /b
+
+:THUMBS_ONLY
+REM Prompt for Windows path
+set /p WINPATH=%CYN%Enter the full Windows path to your NAS directory ^(e.g., R:\YouTube\Streams\MixerTwitch^): %RST%
+if "%WINPATH%"=="" (
+    echo %RED%No path provided. Exiting.%RST%
+    exit /b
+)
+
+REM Convert Windows path to NAS path and pre-seed eaDir_tmp from @eaDir on NAS
+set "RELPATH=%WINPATH:~3%"
+set "RELPATH=%RELPATH:\=/%"
+set "NASPATH=/volume1/Hydra/%RELPATH%"
+
+echo %GRN%Uploading extract_eadir_to_tmp.sh to NAS and seeding...%RST%
+if not exist "%~dp0extract_eadir_to_tmp.sh" (
+    echo %RED%ERROR: extract_eadir_to_tmp.sh not found next to this batch file.%RST%
+    goto END
+)
+ssh Hydra "cat > ~/extract_eadir_to_tmp.sh" < "%~dp0extract_eadir_to_tmp.sh"
+ssh Hydra "bash -lc 'if command -v dos2unix >/dev/null 2>&1; then dos2unix -f ~/extract_eadir_to_tmp.sh; else tr -d \"\r\" < ~/extract_eadir_to_tmp.sh > ~/extract_eadir_to_tmp.sh.tmp && mv ~/extract_eadir_to_tmp.sh.tmp ~/extract_eadir_to_tmp.sh; fi; chmod +x ~/extract_eadir_to_tmp.sh; ~/extract_eadir_to_tmp.sh \"%NASPATH%\" || true'"
+
+REM Run psthumbgen.py
+python psthumbgen.py --directory "%WINPATH%"
+goto END
+
+:SSH_ONLY
+REM Prompt for Windows path
+set /p WINPATH=%CYN%Enter the full Windows path to your NAS directory ^(e.g., R:\YouTube\Streams\MixerTwitch^): %RST%
+if "%WINPATH%"=="" (
+    echo %RED%No path provided. Exiting.%RST%
+    exit /b
+)
+
+REM Convert Windows path to NAS path
+set "RELPATH=%WINPATH:~3%"
+set "RELPATH=%RELPATH:\=/%"
+set "NASPATH=/volume1/Hydra/%RELPATH%"
+
+echo %GRY%DEBUG: WINPATH = %WINPATH%%RST%
+echo %GRY%DEBUG: RELPATH = %RELPATH%%RST%
+echo %GRY%DEBUG: NASPATH = %NASPATH%%RST%
+echo.
+call :WIN_REMOVE_LOCAL_EADIR
+REM Ensure nascleanup.sh exists on NAS (upload + fix line endings), then run it
+echo %GRN%Uploading nascleanup.sh to NAS and running cleanup...%RST%
+if not exist "%~dp0nascleanup.sh" (
+    echo %RED%ERROR: nascleanup.sh not found next to this batch file.%RST%
+    goto END
+)
+ssh Hydra "cat > ~/nascleanup.sh" < "%~dp0nascleanup.sh"
+ssh Hydra "bash -lc 'if command -v dos2unix >/dev/null 2>&1; then dos2unix -f ~/nascleanup.sh; else tr -d \"\r\" < ~/nascleanup.sh > ~/nascleanup.sh.tmp && mv ~/nascleanup.sh.tmp ~/nascleanup.sh; fi; chmod +x ~/nascleanup.sh; ~/nascleanup.sh \"%NASPATH%\"'"
+if errorlevel 1 (
+    echo %RED%ERROR: nascleanup failed on NAS - check promote ^(eaDir_tmp -^> @eaDir^) messages above.%RST%
+    echo %YLW%Keeping eaDir_tmp on the share so you can retry without re-running FFmpeg.%RST%
+    call :PRINT_HYDRA_CLEAR_EADIR
+) else (
+    call :WIN_REMOVE_LOCAL_EADIR_TMP
+)
+goto END
+
+:BOTH
+REM Prompt for Windows path
+set /p WINPATH=%CYN%Enter the full Windows path to your NAS directory ^(e.g., R:\YouTube\Streams\MixerTwitch^): %RST%
+if "%WINPATH%"=="" (
+    echo %RED%No path provided. Exiting.%RST%
+    exit /b
+)
+
+REM Convert Windows path to NAS path
+set "RELPATH=%WINPATH:~3%"
+set "RELPATH=%RELPATH:\=/%"
+set "NASPATH=/volume1/Hydra/%RELPATH%"
+
+echo %GRY%DEBUG: WINPATH = %WINPATH%%RST%
+echo %GRY%DEBUG: RELPATH = %RELPATH%%RST%
+echo %GRY%DEBUG: NASPATH = %NASPATH%%RST%
+echo.
+
+REM Pre-seed eaDir_tmp from @eaDir on NAS before generation
+echo %GRN%Uploading extract_eadir_to_tmp.sh to NAS and seeding...%RST%
+if not exist "%~dp0extract_eadir_to_tmp.sh" (
+    echo %RED%ERROR: extract_eadir_to_tmp.sh not found next to this batch file.%RST%
+    goto END
+)
+ssh Hydra "cat > ~/extract_eadir_to_tmp.sh" < "%~dp0extract_eadir_to_tmp.sh"
+ssh Hydra "bash -lc 'if command -v dos2unix >/dev/null 2>&1; then dos2unix -f ~/extract_eadir_to_tmp.sh; else tr -d \"\r\" < ~/extract_eadir_to_tmp.sh > ~/extract_eadir_to_tmp.sh.tmp && mv ~/extract_eadir_to_tmp.sh.tmp ~/extract_eadir_to_tmp.sh; fi; chmod +x ~/extract_eadir_to_tmp.sh; ~/extract_eadir_to_tmp.sh \"%NASPATH%\" || true'"
+
+REM Run psthumbgen.py
+python psthumbgen.py --directory "%WINPATH%"
+
+REM Clear old @eaDir on the share via SMB (helps when NAS cp hits Permission denied on root-owned dirs)
+call :WIN_REMOVE_LOCAL_EADIR
+
+REM SSH cleanup commands (run separately)
+REM Ensure nascleanup.sh exists on NAS (upload + fix line endings), then run it
+echo %GRN%Uploading nascleanup.sh to NAS and running cleanup...%RST%
+if not exist "%~dp0nascleanup.sh" (
+    echo %RED%ERROR: nascleanup.sh not found next to this batch file.%RST%
+    goto END
+)
+ssh Hydra "cat > ~/nascleanup.sh" < "%~dp0nascleanup.sh"
+ssh Hydra "bash -lc 'if command -v dos2unix >/dev/null 2>&1; then dos2unix -f ~/nascleanup.sh; else tr -d \"\r\" < ~/nascleanup.sh > ~/nascleanup.sh.tmp && mv ~/nascleanup.sh.tmp ~/nascleanup.sh; fi; chmod +x ~/nascleanup.sh; ~/nascleanup.sh \"%NASPATH%\"'"
+if errorlevel 1 (
+    echo %RED%ERROR: nascleanup failed on NAS - check promote ^(eaDir_tmp -^> @eaDir^) messages above.%RST%
+    echo %YLW%Keeping eaDir_tmp on the share so you can retry without re-running FFmpeg.%RST%
+    call :PRINT_HYDRA_CLEAR_EADIR
+) else (
+    call :WIN_REMOVE_LOCAL_EADIR_TMP
+)
+goto END
+
+:FIX_ONEDRIVE
+echo.
+echo %BLD%%MAG%=================================================================%RST%
+echo %BLD%%MAG% FIX ONEDRIVE THUMBNAIL OVERRIDE %RST%
+echo %BLD%%MAG%=================================================================%RST%
+echo.
+echo %WHT%This will fix OneDrive overriding your custom thumbnails with%RST%
+echo %WHT%generic file icons for unsupported formats like .blend files.%RST%
+echo.
+echo %CYN%What this does:%RST%
+echo %GRY%  - Disables OneDrive cloud thumbnail providers%RST%
+echo %GRY%  - Restores local thumbnail priority%RST%
+echo %GRY%  - Prevents future thumbnail cache deletion%RST%
+echo.
+set /p CONFIRM=%YLW%Continue? ^(y/n^): %RST%
+if /i not "%CONFIRM%"=="y" goto END
+
+echo.
+echo %GRN%Running PowerShell script to fix OneDrive thumbnail override...%RST%
+echo.
+
+REM Check if PowerShell script exists
+if not exist "fix_thumbnail_override.ps1" (
+    echo %RED%ERROR: fix_thumbnail_override.ps1 not found in current directory.%RST%
+    echo %YLW%Please ensure the PowerShell script is in the same folder as this batch file.%RST%
+    pause
+    goto END
+)
+
+REM Run PowerShell script as administrator
+powershell -ExecutionPolicy Bypass -Command "Start-Process PowerShell -ArgumentList '-ExecutionPolicy Bypass -File \"%~dp0fix_thumbnail_override.ps1\"' -Verb RunAs"
+
+echo.
+echo %GRN%OneDrive thumbnail override fix initiated.%RST%
+echo %GRY%Please check the PowerShell window for progress and results.%RST%
+echo.
+echo %CYN%After the fix completes:%RST%
+echo %GRY%  1. Restart your computer%RST%
+echo %GRY%  2. Re-run your thumbnail generation process%RST%
+echo %GRY%  3. Your custom thumbnails should now have priority!%RST%
+echo.
+goto END
+
+REM Print ssh Hydra command to wipe @eaDir when NAS cleanup failed (matches NASPATH from pasted R:\ path).
+:PRINT_HYDRA_CLEAR_EADIR
+if "%NASPATH%"=="" goto :eof
+echo %MAG%To clear locked @eaDir on Hydra: ssh in first.%RST%
+echo %GRY%Permission denied lines above name nested paths ^(e.g. editDesc, gameplay^).%RST%
+echo %GRY%Clear every @eaDir under the SAME folder you passed to nascleanup ^(NASPATH below^),%RST%
+echo %GRY%not only the subpath from the first error line.%RST%
+echo %BLD%%YLW%  sudo find "%NASPATH%" -depth -type d -name '@eaDir' -exec sudo rm -rf {} +%RST%
+goto :eof
+
+REM Remove folder-level @eaDir on the pasted Windows path (same files as NAS over SMB).
+:WIN_REMOVE_LOCAL_EADIR
+if "%WINPATH%"=="" goto :eof
+if exist "%WINPATH%\@eaDir" (
+    echo %CYN%Removing "%WINPATH%\@eaDir" via Windows ^(SMB share^)...%RST%
+    rd /s /q "%WINPATH%\@eaDir" 2>nul
+    if exist "%WINPATH%\@eaDir" (
+        echo %YLW%WARNING: Could not remove @eaDir; try PowerShell as admin or delete in Explorer.%RST%
+    )
+)
+goto :eof
+
+REM Remove every eaDir_tmp under pasted path (including subfolders e.g. gameplay\eaDir_tmp).
+:WIN_REMOVE_LOCAL_EADIR_TMP
+if "%WINPATH%"=="" goto :eof
+echo %CYN%Removing all eaDir_tmp folders under "%WINPATH%" ^(recursive, SMB^)...%RST%
+if not exist "%~dp0remove_eadir_tmp_recursive.ps1" (
+    echo %RED%ERROR: remove_eadir_tmp_recursive.ps1 not found next to this batch file.%RST%
+    goto :eof
+)
+powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0remove_eadir_tmp_recursive.ps1" "%WINPATH%"
+goto :eof
+
+:END
+echo %DIM%Press any key to continue . . .%RST%
+pause >nul

cleanup-output.txt

@@ -0,0 +1,315 @@
+=== Enhanced Synology Thumbnail Cleanup ===
+Target directory: /volume1/Hydra/Desktop
+Stopping indexing services (best effort)...
+Clearing indexing queue (if accessible)...
+=== Existing @eaDir directories ===
+/volume1/Hydra/Desktop/twenty twenty five/@eaDir
+/volume1/Hydra/Desktop/twenty twenty five/eaDir_tmp/2025-04-04 intellectual cowardice.mp4/@eaDir
+/volume1/Hydra/Desktop/twenty twenty five/eaDir_tmp/Alex_Repo_-_Duck.mp4/@eaDir
+/volume1/Hydra/Desktop/twenty twenty five/eaDir_tmp/Black_Ops_6_-_Go_Payback_or_Youre_Gay.mp4/@eaDir
+/volume1/Hydra/Desktop/twenty twenty five/eaDir_tmp/ZZZ_-_Mason_and_the_Moss.mp4/@eaDir
+/volume1/Hydra/Desktop/how to archive/@eaDir
+/volume1/Hydra/Desktop/twenty twenty/SCP-2432/@eaDir
+/volume1/Hydra/Desktop/twenty twenty/steamreviewreading/@eaDir
+/volume1/Hydra/Desktop/twenty twenty/who can it be now alex/@eaDir
+/volume1/Hydra/Desktop/twenty twenty/@eaDir
+/volume1/Hydra/Desktop/death/@eaDir
+/volume1/Hydra/Desktop/death/deathRefs/@eaDir
+/volume1/Hydra/Desktop/death/eaDir_tmp/20200130 - Apex Legends Season 4 ΓÇô Assimilation Launch Trailer.mp4/@eaDir
+/volume1/Hydra/Desktop/death/eaDir_tmp/apexhandbroke.mp4/@eaDir
+/volume1/Hydra/Desktop/death/eaDir_tmp/deathclip.mp4/@eaDir
+/volume1/Hydra/Desktop/RainyProj/fnaf2_1/shorts/@eaDir
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+/volume1/Hydra/Desktop/chocolatey-packages/automatic/claws-mail/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/cmder/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/cmdermini/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/codecontracts/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/codemaid/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/disposablefixer/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/dumo/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/electrum-ltc/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/encfsmp/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/enki/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/folder_size/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/friture/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/fstar/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/gbm/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/ghostdoc-enterprise/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/ghostdoc-pro/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/golly/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/gtkwave/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/hardentools/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/heaven-benchmark/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/linux-reader/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/lunacy/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/master-pdf-editor/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/mediathekview/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/meld/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/monogame/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/nagstamon/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/nordpass/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/nordlocker/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/nordvpn-teams/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/onionshare/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/openmpt/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/origin/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/persepolis/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/plane9/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/powder-toy/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/privazer/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/qilin-editor/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/qilin-editor/screenshots/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/qemu/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/qmmp/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/qnapi/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/ubisoft-connect/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/unit-test-boilerplate-generator/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/unit-test-boilerplate-generator/screenshots/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/automatic/valley-benchmark/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/manual/asp-net-mvc-boilerplate/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/manual/metapad-light/icons/@eaDir
+/volume1/Hydra/Desktop/chocolatey-packages/manual/metapad/icons/@eaDir
+/volume1/Hydra/Desktop/eaDir_tmp/dog snuggle boat.mp4/@eaDir
+/volume1/Hydra/Desktop/eaDir_tmp/20230615 - 3 Disturbing TRUE Sleepover Horror Stories (V5).mp4/@eaDir
+/volume1/Hydra/Desktop/eaDir_tmp/20220927 - Jordan PetersonΓÇÖs FULL Interview With Piers Morgan.mp4/@eaDir
+/volume1/Hydra/Desktop/eaDir_tmp/default.mp4/@eaDir
+=== Removing existing @eaDir directories ===
+=== Installing custom thumbnails ===
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty five/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/death/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/RainyProj/fnaf2_1/shorts/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty one/2021-09-25 trunk shenans/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty one/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty two/retards0626/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty two/The Experience/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty two/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty three/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/twenty twenty four/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/tiktokPotential/marxistIdiocy/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/rainysrambles_scramble/RnR/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/guh/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/snake metal gear colonel airpods/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/mems/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/half life cats/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/subnautica1/fin_shorts/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/subnautica1/RnR/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/subnautica1/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/organizedchaos/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/writinRepo/yt/potentialvids/coco vs book of life/eaDir_tmp
+  -> Replacing /volume1/Hydra/Desktop/eaDir_tmp
+=== Removing leftover eaDir_tmp directories ===
+=== Adding indexing exclusion hints ===
+=== Protecting custom thumbnails ===
+=== Cleanup complete! ===
+Note: If indexing was stopped and needs restarting, use DSM UI or your NAS service tools.

extract_eadir_to_tmp.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Extract existing Synology thumbnails from @eaDir into eaDir_tmp so thumbgen skips regeneration
+# Usage: ./extract_eadir_to_tmp.sh /volume1/YourShare/path
+
+set -uo pipefail
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <directory_path>"
+    exit 1
+fi
+
+TARGET_DIR="$1"
+
+if [ ! -d "$TARGET_DIR" ]; then
+    echo "Error: '$TARGET_DIR' is not a directory"
+    exit 1
+fi
+
+echo "=== Extracting @eaDir thumbnails to eaDir_tmp ==="
+echo "Target: $TARGET_DIR"
+
+# Every .../@eaDir under TARGET (e.g. TARGET/@eaDir and TARGET/gameplay/@eaDir). Skip paths inside eaDir_tmp.
+find "$TARGET_DIR" -type d -name '@eaDir' ! -path '*/eaDir_tmp/*' -print0 | while IFS= read -r -d '' EADIR; do
+    PARENT_DIR="$(dirname "$EADIR")"
+
+    # Each immediate subdir under @eaDir corresponds to a source filename
+    find "$EADIR" -mindepth 1 -maxdepth 1 -type d -print0 | while IFS= read -r -d '' ENTRY; do
+        BASENAME="$(basename "$ENTRY")"
+        DEST_DIR="$PARENT_DIR/eaDir_tmp/$BASENAME"
+
+        mkdir -p "$DEST_DIR" || continue
+
+        # Copy without overwriting existing files in eaDir_tmp
+        for F in \
+            SYNOVIDEO_VIDEO_SCREENSHOT.jpg \
+            SYNOPHOTO_THUMB_XL.jpg \
+            SYNOPHOTO_THUMB_B.jpg \
+            SYNOPHOTO_THUMB_M.jpg \
+            SYNOPHOTO_THUMB_PREVIEW.jpg \
+            SYNOPHOTO_THUMB_S.jpg; do
+            if [ -f "$ENTRY/$F" ] && [ ! -f "$DEST_DIR/$F" ]; then
+                cp "$ENTRY/$F" "$DEST_DIR/$F"
+            fi
+        done
+    done
+done
+
+echo "=== Done. Existing thumbnails copied into eaDir_tmp where available. ==="
+

fix_thumbnail_override.ps1

@@ -0,0 +1,160 @@
+# Fix OneDrive Thumbnail Override - Restore Local Thumbnails
+# This script disables OneDrive's cloud thumbnail providers that override custom thumbnails
+
+Write-Host "🎯 Fixing OneDrive Thumbnail Override Issue..." -ForegroundColor Cyan
+Write-Host "This will restore priority to your locally-generated thumbnails." -ForegroundColor Yellow
+
+# Check if running as administrator
+if (-NOT ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
+    Write-Host "❌ This script requires administrator privileges. Please run as administrator." -ForegroundColor Red
+    exit 1
+}
+
+# 1. Disable OneDrive Files On-Demand thumbnail override
+Write-Host "🔧 Disabling OneDrive Files On-Demand thumbnail override..." -ForegroundColor Green
+
+try {
+    # User-level OneDrive policies
+    if (!(Test-Path "HKCU:\SOFTWARE\Policies\Microsoft\OneDrive")) {
+        New-Item -Path "HKCU:\SOFTWARE\Policies\Microsoft\OneDrive" -Force | Out-Null
+    }
+    Set-ItemProperty -Path "HKCU:\SOFTWARE\Policies\Microsoft\OneDrive" -Name "DisableCloudThumbnails" -Value 1 -Type DWord
+
+    # Machine-level OneDrive policies
+    if (!(Test-Path "HKLM:\SOFTWARE\Policies\Microsoft\OneDrive")) {
+        New-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\OneDrive" -Force | Out-Null
+    }
+    Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\OneDrive" -Name "DisableCloudThumbnails" -Value 1 -Type DWord
+
+    Write-Host "✅ OneDrive thumbnail override disabled" -ForegroundColor Green
+} catch {
+    Write-Host "⚠️ Warning: Could not set OneDrive policies: $($_.Exception.Message)" -ForegroundColor Yellow
+}
+
+# 2. Disable cloud files thumbnail provider
+Write-Host "🔧 Disabling cloud files thumbnail provider..." -ForegroundColor Green
+
+try {
+    # This is the key provider that overrides local thumbnails
+    $cloudProviderPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ThumbnailProviders\{E357FCCD-A995-4576-B01F-234630154E96}"
+    if (Test-Path $cloudProviderPath) {
+        Remove-Item -Path $cloudProviderPath -Force -Recurse
+        Write-Host "✅ Cloud thumbnail provider removed" -ForegroundColor Green
+    } else {
+        Write-Host "ℹ️ Cloud thumbnail provider not found (may already be disabled)" -ForegroundColor Blue
+    }
+} catch {
+    Write-Host "⚠️ Warning: Could not remove cloud thumbnail provider: $($_.Exception.Message)" -ForegroundColor Yellow
+}
+
+# 3. Set local thumbnail preferences
+Write-Host "🔧 Configuring local thumbnail preferences..." -ForegroundColor Green
+
+try {
+    # Ensure local thumbnails are enabled
+    if (!(Test-Path "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced")) {
+        New-Item -Path "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Force | Out-Null
+    }
+    
+    Set-ItemProperty -Path "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "IconsOnly" -Value 0 -Type DWord
+    Set-ItemProperty -Path "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "DisableThumbnailsOnNetworkFolders" -Value 0 -Type DWord
+    
+    # Add custom registry value to prefer local thumbnails
+    Set-ItemProperty -Path "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "UseLocalThumbnailProvider" -Value 1 -Type DWord
+
+    Write-Host "✅ Local thumbnail preferences configured" -ForegroundColor Green
+} catch {
+    Write-Host "⚠️ Warning: Could not set local thumbnail preferences: $($_.Exception.Message)" -ForegroundColor Yellow
+}
+
+# 4. Disable OneDrive shell icon overlays (these can interfere with thumbnails)
+Write-Host "🔧 Disabling OneDrive shell overlays..." -ForegroundColor Green
+
+$overlayPaths = @(
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive1",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive2",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive3",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive4",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive5",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive6",
+    "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\OneDrive7"
+)
+
+$overlaysRemoved = 0
+foreach ($overlayPath in $overlayPaths) {
+    try {
+        if (Test-Path $overlayPath) {
+            Remove-Item -Path $overlayPath -Force -Recurse
+            $overlaysRemoved++
+        }
+    } catch {
+        Write-Host "⚠️ Warning: Could not remove overlay $overlayPath" -ForegroundColor Yellow
+    }
+}
+
+Write-Host "✅ Removed $overlaysRemoved OneDrive shell overlays" -ForegroundColor Green
+
+# 5. Clear thumbnail cache to force regeneration
+Write-Host "🔧 Clearing thumbnail cache to force regeneration..." -ForegroundColor Green
+
+try {
+    # Stop Explorer process
+    Stop-Process -Name "explorer" -Force -ErrorAction SilentlyContinue
+    Start-Sleep -Seconds 2
+
+    # Clear thumbnail cache
+    $thumbCachePath = "$env:LOCALAPPDATA\Microsoft\Windows\Explorer"
+    $thumbCacheFiles = Get-ChildItem -Path $thumbCachePath -Filter "thumbcache_*.db" -ErrorAction SilentlyContinue
+    
+    foreach ($file in $thumbCacheFiles) {
+        try {
+            Remove-Item -Path $file.FullName -Force
+        } catch {
+            Write-Host "⚠️ Could not remove $($file.Name)" -ForegroundColor Yellow
+        }
+    }
+
+    # Restart Explorer
+    Start-Process -FilePath "explorer.exe"
+    Start-Sleep -Seconds 3
+
+    Write-Host "✅ Thumbnail cache cleared and Explorer restarted" -ForegroundColor Green
+} catch {
+    Write-Host "⚠️ Warning: Issues clearing thumbnail cache: $($_.Exception.Message)" -ForegroundColor Yellow
+    Write-Host "🔄 Please restart Windows Explorer manually" -ForegroundColor Blue
+}
+
+# 6. Prevent automatic thumbnail cache deletion
+Write-Host "🔧 Preventing Windows from auto-deleting thumbnail cache..." -ForegroundColor Green
+
+try {
+    # Disable thumbnail cache auto-cleanup in Disk Cleanup
+    $autorunKey = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Thumbnail Cache"
+    if (Test-Path $autorunKey) {
+        Set-ItemProperty -Path $autorunKey -Name "Autorun" -Value 0 -Type DWord
+    }
+
+    # Also disable for WOW64 on 64-bit systems
+    $autorunKeyWow64 = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Thumbnail Cache"
+    if (Test-Path $autorunKeyWow64) {
+        Set-ItemProperty -Path $autorunKeyWow64 -Name "Autorun" -Value 0 -Type DWord
+    }
+
+    Write-Host "✅ Thumbnail cache auto-deletion disabled" -ForegroundColor Green
+} catch {
+    Write-Host "⚠️ Warning: Could not disable thumbnail cache auto-deletion: $($_.Exception.Message)" -ForegroundColor Yellow
+}
+
+Write-Host ""
+Write-Host "🎉 OneDrive thumbnail override fix complete!" -ForegroundColor Green
+Write-Host ""
+Write-Host "📋 What was changed:" -ForegroundColor Cyan
+Write-Host "   ✓ Disabled OneDrive cloud thumbnail providers" -ForegroundColor White
+Write-Host "   ✓ Removed cloud files thumbnail provider" -ForegroundColor White
+Write-Host "   ✓ Set local thumbnail preferences" -ForegroundColor White
+Write-Host "   ✓ Disabled OneDrive shell overlays" -ForegroundColor White
+Write-Host "   ✓ Cleared and regenerated thumbnail cache" -ForegroundColor White
+Write-Host "   ✓ Prevented automatic thumbnail cache deletion" -ForegroundColor White
+Write-Host ""
+Write-Host "🔄 Please restart your computer for all changes to take effect." -ForegroundColor Yellow
+Write-Host "📁 Your custom thumbnails should now have priority over OneDrive's generic icons!" -ForegroundColor Green 

nascleanup.sh

@@ -0,0 +1,144 @@
+#!/bin/bash
+
+# Enhanced NAS cleanup script with thumbnail protection
+# Usage: ./nascleanup.sh /volume1/Hydra/path/to/directory
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <directory_path>"
+    echo "Example: $0 /volume1/Hydra/Creative/artsy"
+    exit 1
+fi
+
+TARGET_DIR="$1"
+
+# Merge synoindexd layout .../<file>/@eaDir/*.jpg into .../<file>/ (Synology Drive expects no inner @eaDir).
+flatten_indexer_layout() {
+    local root="$1"
+    [ -d "$root" ] || return 0
+    find "$root" -mindepth 2 -type d -name '@eaDir' -print0 2>/dev/null | while IFS= read -r -d '' NEST; do
+        PARENT="$(dirname "$NEST")"
+        [ -d "$NEST" ] || continue
+        for f in "$NEST"/*; do
+            [ -e "$f" ] || continue
+            base="$(basename "$f")"
+            [ "$base" = "SYNOINDEX_MEDIA_INFO" ] && continue
+            mv -f "$f" "$PARENT/" 2>/dev/null || true
+        done
+        rm -rf "$NEST" 2>/dev/null || true
+    done
+}
+
+# Copy one thumbgen tree: PARENT/eaDir_tmp -> PARENT/@eaDir (psthumbgen uses per-folder eaDir_tmp).
+promote_one_eadir_tmp() {
+    local EADIR_TMP="$1"
+    local PARENT TARGET_AT SRC_JPG DST_JPG
+    PARENT="$(dirname "$EADIR_TMP")"
+    TARGET_AT="$PARENT/@eaDir"
+    [ -d "$EADIR_TMP" ] || return 0
+    chmod -R 755 "$EADIR_TMP" 2>/dev/null || true
+    find "$EADIR_TMP" -type f -exec chmod 644 '{}' \; 2>/dev/null || true
+    echo "  -> Flattening eaDir_tmp (indexer may have added .../<file>/@eaDir/) before copy: $EADIR_TMP"
+    flatten_indexer_layout "$EADIR_TMP"
+    echo "  -> Replacing $EADIR_TMP -> $TARGET_AT"
+    SRC_JPG=$(find "$EADIR_TMP" -type f -name 'SYNO*.jpg' 2>/dev/null | wc -l | tr -d '[:space:]')
+    rm -rf "$TARGET_AT"
+    mkdir -p "$TARGET_AT"
+    if ! cp -R "$EADIR_TMP/." "$TARGET_AT/"; then
+        echo "ERROR: eaDir_tmp -> @eaDir copy failed (see cp messages above)."
+        exit 1
+    fi
+    echo "  -> Flattening @eaDir after copy (same layout fix)"
+    flatten_indexer_layout "$TARGET_AT"
+    DST_JPG=$(find "$TARGET_AT" -type f -name 'SYNO*.jpg' 2>/dev/null | wc -l | tr -d '[:space:]')
+    if [ "$SRC_JPG" -gt 0 ] && [ "$DST_JPG" -ne "$SRC_JPG" ]; then
+        echo "ERROR: Promote incomplete: $DST_JPG SYNO*.jpg in @eaDir vs $SRC_JPG in eaDir_tmp (expected equal)."
+        exit 1
+    fi
+    chmod -R 755 "$EADIR_TMP" 2>/dev/null || true
+    find "$EADIR_TMP" -type f -exec chmod u+w '{}' \; 2>/dev/null || true
+    find "$EADIR_TMP" -type d -exec chmod u+w '{}' \; 2>/dev/null || true
+    rm -rf "$EADIR_TMP" 2>/dev/null || sudo -n rm -rf "$EADIR_TMP" 2>/dev/null || true
+}
+
+echo "=== Enhanced Synology Thumbnail Cleanup ==="
+echo "Target directory: $TARGET_DIR"
+
+# 1. Stop indexing services temporarily
+echo "Stopping indexing services (best effort)..."
+# Non-login SSH often has a minimal PATH; binary lives in /usr/syno/sbin
+if [ -x /usr/syno/sbin/synoservicectl ]; then
+    SYNOCTL=/usr/syno/sbin/synoservicectl
+elif command -v synoservicectl >/dev/null 2>&1; then
+    SYNOCTL=synoservicectl
+else
+    SYNOCTL=""
+fi
+if [ -n "$SYNOCTL" ]; then
+    "$SYNOCTL" --stop synoindexd 2>/dev/null || true
+    "$SYNOCTL" --stop pkgctl-SynoFinder 2>/dev/null || true
+elif command -v systemctl >/dev/null 2>&1; then
+    # Plain `systemctl` as non-root usually fails silently; try sudo -n first (NOPASSWD).
+    for u in synoindexd pkgctl-SynoFinder; do
+        sudo -n systemctl stop "$u" 2>/dev/null || systemctl stop "$u" 2>/dev/null || true
+    done
+else
+    echo "  -> Service control unavailable; skipping"
+fi
+
+# 2. Clear indexing queue to prevent regeneration
+echo "Clearing indexing queue (if accessible)..."
+if [ -w /var/spool ]; then
+    rm -f /var/spool/syno_indexing_queue* 2>/dev/null || true
+fi
+
+# 3. Dry-run check (see what @eaDir directories exist)
+echo "=== Existing @eaDir directories ==="
+find "$TARGET_DIR" -type d -name '@eaDir' -exec echo '{}' \;
+
+# 4. Remove any existing @eaDir directories 
+echo "=== Removing existing @eaDir directories ==="
+# Drop indexer sidecars first (often root-owned — passwordless sudo helps)
+if command -v sudo >/dev/null 2>&1; then
+    sudo -n find "$TARGET_DIR" -name 'SYNOINDEX_MEDIA_INFO' \( -type f -o -type d \) -exec rm -rf '{}' \; 2>/dev/null || true
+fi
+find "$TARGET_DIR" -name 'SYNOINDEX_MEDIA_INFO' \( -type f -o -type d \) -exec chmod -R u+w '{}' \; 2>/dev/null || true
+find "$TARGET_DIR" -name 'SYNOINDEX_MEDIA_INFO' \( -type f -o -type d \) -exec rm -rf '{}' \; 2>/dev/null || true
+# First make them writable so we can remove them
+find "$TARGET_DIR" -type d -name '@eaDir' -exec chmod -R 755 '{}' \; 2>/dev/null || true
+find "$TARGET_DIR" -path '*/@eaDir/*' -type f -exec chmod 644 '{}' \; 2>/dev/null || true
+# Now remove them (2>/dev/null: races when parents disappear mid-find)
+find "$TARGET_DIR" -type d -name '@eaDir' -exec rm -rf '{}' \; 2>/dev/null || true
+
+# 5. Promote every .../eaDir_tmp -> .../@eaDir (thumbgen writes eaDir_tmp next to each video folder, not only TARGET_DIR/eaDir_tmp)
+echo "=== Installing custom thumbnails ==="
+INSTALL_ANY=0
+while IFS= read -r -d '' EADIR_TMP; do
+    INSTALL_ANY=1
+    promote_one_eadir_tmp "$EADIR_TMP"
+done < <(find "$TARGET_DIR" -type d -name 'eaDir_tmp' -print0)
+if [ "$INSTALL_ANY" -eq 0 ]; then
+    echo "  -> No eaDir_tmp under $TARGET_DIR; skipping install step"
+fi
+echo "=== Removing any leftover eaDir_tmp directories ==="
+find "$TARGET_DIR" -type d -name 'eaDir_tmp' -exec rm -rf '{}' \; 2>/dev/null || true
+
+# 6. Protect custom thumbnails with read-only permissions
+echo "=== Adding indexing exclusion hints ==="
+find "$TARGET_DIR" -type d -name '@eaDir' -exec sh -c 'touch "$1/.noindex" 2>/dev/null || true' _ {} \; 2>/dev/null || true
+
+# 7. Protect custom thumbnails with read-only permissions (after .noindex)
+echo "=== Protecting custom thumbnails ==="
+find "$TARGET_DIR" -type d -name '@eaDir' -exec chmod 555 '{}' \; 2>/dev/null || true
+find "$TARGET_DIR" -path '*/@eaDir/*' -type f -exec chmod 444 '{}' \; 2>/dev/null || true
+
+echo "=== Cleanup complete! ==="
+echo "Restarting indexing services (best effort)..."
+if [ -n "$SYNOCTL" ]; then
+    "$SYNOCTL" --start synoindexd 2>/dev/null || true
+    "$SYNOCTL" --start pkgctl-SynoFinder 2>/dev/null || true
+elif command -v systemctl >/dev/null 2>&1; then
+    for u in synoindexd pkgctl-SynoFinder; do
+        sudo -n systemctl start "$u" 2>/dev/null || systemctl start "$u" 2>/dev/null || true
+    done
+fi
+echo "Note: If indexing was stopped and needs restarting, use DSM UI or: sudo systemctl restart synoindexd"

remove_eadir_tmp_recursive.ps1

@@ -0,0 +1,15 @@
+param(
+    [Parameter(Mandatory = $true)]
+    [string] $Root
+)
+if (-not (Test-Path -LiteralPath $Root)) { exit 0 }
+$dirs = @(Get-ChildItem -LiteralPath $Root -Recurse -Directory -Filter 'eaDir_tmp' -ErrorAction SilentlyContinue |
+    Sort-Object { $_.FullName.Length } -Descending)
+foreach ($d in $dirs) {
+    try {
+        Remove-Item -LiteralPath $d.FullName -Recurse -Force
+        Write-Host "Removed: $($d.FullName)"
+    } catch {
+        Write-Host "Failed: $($d.FullName)"
+    }
+}