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 
nostr:nevent1qvzqqqqqqypzqynpqwlamjxly44kuz4l6lehjlyqmnzw4z8hctu8m4qsggstf4jlqythwumn8ghj7cnfw33k76twv4ezuum0vd5kzmp0qyghwumn8ghj7mn0wd68ytnhd9hx2tcqyqrus0dnaq5ughhkpefgfwsudrev86c3yt3l87r5gdeu948gv90sqg44hx0 

 I haven’t tried lume yet but today I send it to a friend that being super grumpy by broken gossip

Let’s see if lume works🫣🫣🙏🙏 

 oh, you mean gossip client? I thought it stable than lume (specially on linux and windows) 

 yeah it is however there is a subtle bug at first time sign up which is frustrating 😢