Announcing a New Plugin for Adobe Lightroom: Smart-Collection Sync to Adobe’s Lightroom CC Cloud

part of the plugin explanation from its home page

I've released a new plugin for Lightroom Classic (Lr6 and later) to help users wanting to sync smart collections to Lightroom's
cloud ecosystem. Lightroom Classic allows syncing only normal collections, so you can't sync smart collections such as “all
five-star photos” or the like.

This plugin works around this restriction by allowing you to keep a set of normal collections automatically synced with your
smart collections; you then add those automatically-mirrored normal collections to Lightroom's cloud.

It sounds simple, but the devil's in the details... the same details, I'm sure, which caused Adobe to not support
smart-collection sync in the first place. It's all explained at the plugin's home page:

Jeffrey’s “Smart-Collection-Sync” Lightroom Plugin.

As with most of my plugins, it's released as donationware. It can be used freely by all forever, but becomes slightly less convenient after a while to encourage thinking about a gift.

Special thanks to Gerhard Wolf for suggesting a realistic way to approach a
plugin like this in Lightroom. I took his suggestion and threw it out, building something
completely different that made more intuitive sense to me, but in the end just didn't feel elegant. Indded, Gerhard reported that
my approach worked, but again urged his. I gave his approach a try, and upon
implementing it finally saw it for the more-satisfying approach that it was. Thanks Gerhard.