From this page:  https://github.com/mikedilger/gossip/releases/tag/v0.11.3

Microsoft Windows:  gossip.0.11.3.msi
MacOS (on intel hardware):  gossip-0.11.3-Darwin-x86_64.dmg 
MacOS (on M1/M2 hardware):   gossip-0.11.3-Darwin-arm64.dmg 
Linux Debian-flavors:     gossip_0.11.3-1_amd64.deb 
Linux ArchLinux:     go get it from AUR
Linux other:     Use the .flatpak or AppImage.tar.gz