@pietercolpaert @hvdsomp @nichtich At #swib23, Steven Folsom introduced it in the talk "Supporting sustainable lookup services", see https://swib.org/swib23/programme.html#supporting-sustainable-lookup-services for abstract, slides and recording. At this year's #swib25 there might be a talk about LDES which could be good opportunity to mention similarities and differences between both approaches. ;-)