dostana can there a queue type process like a user makes his selections of couple of applications and give it go in single shot.
This was already addressed during the first attempt at rewriting the SC some years ago and is something we are still planning on supporting in the planned rewrite for sol
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dostana Another point is, Is there any future integration of flatpaks, Applmage or Snaps integration to solus software center.
Flatpaks and Snaps, yes. AppImage would require an API to query to support downloading and updating packages, which doesn't yet exist.