Create an Alexa skill and Google Home app to run (or at least launch) Summon searches.
"Hey Google, search [my library] for [topic]"
"Alexa, search [my library] for books by [author]"
Sofia Birden commented
I really like this idea, but I am not willing to cast a vote unless I know it is truly doable. If it is doable, then you have my vote, and maybe more than one.