Developers

There are 4 types of HDA applications:

• Built-in: Applications and functionality that come built-in in the HDA base system. They cannot really work outside.
• HDA plug-ins: These are applications that are specific to the HDA. They are mostly implemented on Ruby on Rails, though they can be implemented in PHP, Python, Flash, or any other language, like C, C++, etc. We have a few of these applications at the moment.
• HDAized applications: these are applications that, with little modification, have been adapted to run on the HDA seamlessly or nearly seamlessly. We have webcal (which is an HDAized version of PHP iCalendar).
• General Linux apps: because we're based on mainstream distributions, you can install most any Linux apps!

Other Tips

• Link to HDAnetscan

 Procedure:
  - open it,
  - in profile, enter your HDA's nickname
  - ensure all your network information is correct (if not, change appropriately)
  - press send

• VPN installer HDAconnect
  • install, change the nickname in the config script.
  • may need to change the binding order on the client
• Thoughts on app development APIs:
  • Set a new host/alias
  • Register/unregister app
  • Restart servers.
  • Common calls for package configuration variables
  • Per application cache management APIs (create cached files, per application, destruction

   of those files, of the app cache, etc.)

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