I did upgrade "Mods", my Windows Tool used to create dummy packages adding shortcuts on DSM's desktop to open web pages.
Now, "Mods" is able to package shell scripts and php webpages...
Mods
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It is available here on GitHub.
For example, you could package apps like Chris Hager's Most Simple Ajax Chat Ever
Simple Chat on DSM
Or package a more advanced tool like php Server Monitor
Server Monitor
Server Monitor Running
This Tool is available here on GitHub.