dmundt

// Strategy pattern in Dart with abstract base class.
abstract class Renderer {
  static const TEXT = const TextRenderer('text');
  static const HTML = const HtmlRenderer('html');
  static const JSON = const JsonRenderer('json');

  final String name;
  const Renderer._internal(this.name);
  void render();
}

SanCoder-Q

Synology NAS - How to make a program run at startup
The other day I created a little node.js project to keep track of some finances. Synology has a node.js package but that just installs the tools - it has no 'container' or any other support to drop files and have it run automagically. Maybe one day.

In the meantime, you can start your project when you SSH into the NAS. My project has a 'www' script which bootstraps my project, so to start I simply type 'node bin/www' from the project directory. But, it only runs while I'm logged in, and if I log out for any reason, the process dies. That's hardly useful when I'm away from home, or on a different PC. So I decided to have a look at starting my project as a Linux service.

After doing a lot of research into how Synology does services, and a few failed attempts at init scripts, I found that Synology DSM (since version 5 perhaps) bundles Upstart, which is a neat little tool to deal with services on Linux. It's most prevalent on Debian and derivatives (notably Ub