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Zero Install allows you to create command-line launchers called "apps" using the 0install add command:

$ 0install add code
$ code

When run, they trigger a background update if they haven't been updated for a while. You can also update them manually:

$ 0install update rox
No updates found. Continuing with version 2.11.


The following features are not supported on Windows yet.

Apps store their current selections (in ~/.config/ in this case). This means that they start slightly faster than using 0install run URI, because the solver isn't needed.

They also remember any restrictions (e.g. --before).

Each app also stores past selections (max one set per day) so if an update goes wrong you can see what changed and roll-back easily:

$ 0install whatchanged 0publish
Last checked    : Wed Jun 27 20:24:19 2012
Last update     : 2012-06-27
Previous update : 2012-06-16 1.8-post -> 1.9-post new -> 1.4.12-4

To run using the previous selections, use:

$ 0install run ~/.config/