Finally I got to create a public repository on GitHub for all my public domain utility tools (I had to fiddle quite a while with git filter-branch
to extract all the 'safe for public' stuff from my home repo).
At the moment the following four scripts are available:
generate-wallpaper-xml
picasa-upload
rotate-wallpaper
update-exif-date
Please welcome: github.com/yktoo/yktools