The link above is through the browser. It is a public Steam Group.
From your Steam client, click your account name, select ‘Groups’, then from the left menu, click ‘Find a Group…’, then enter ‘etarc’ in the search bar and the ETARC Community should show up.
It would be interesting if those collectables could be used as plug-in components for the new base tech. Something along the lines of an organic power source or a shield generator or whatever.
Admittedly such a concept might prove dangerous at a couple of my current bases, which are simple structures surrounded by tons of collectables. Might accidently create a wormhole to fall into