Yo, I've pushed a new version which also added native notification as well as fixed some bugs. https://github.com/lumehq/coop/releases/tag/v0.1.6 . Thank fiatjaf for reporting a lot of issues.
https://image.nostr.build/80b7c87bce3a2ae09ea690bc110148367820d310f9b31ec1897a8b7fe5676802.jpg 
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