Overlap or synergy with Xdg-App

Hello all,

I was wondering whether you guys think that Zero Install's feature set has
any overlap with or could maybe be combined with the Xdg-App project
(https://wiki.gnome.org/Projects/SandboxedApps).

I haven't tried Xdg-App yet, but the following concepts mentioned in the
documentation caught my attention:
 * 3rd parties distribute applications that works on multiple distributions
 * Per-user installation of applications
 * Immutable, deduplicated implementations with multiple versions
side-by-side (using OSTree)

The big differences I noticed:
 * Mount applications and their dependencies to well-known locations (e.g.
/app) rather than making them relocatable
 * Sandboxing built right in
 * Explicit "install" step required
 * Linux-only

Perhaps with Xdg-App's bind mount feature could be replicated with an
<overlay> binding in Zero Install? Any thoughts?

Regards
Bastian


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