It is also dependent on Android in some way I couldn't work out yet.
For example this is on GrapheneOS when I click a zap icon in Amethyst.
Installed the test version of #[3] from the sandboxed Play Store.
Amethyst from F-droid / Neo Store.
How did you install BBW?
I think it depends on Android, because I also have Nostros installed and it doesn't show bbw either as a send option. Bbw is installed via playstore.
I also checked if I can change to open compatible links in it's settings, but there it's toggled active already which is the default.
https://play.google.com/store/apps/details?id=com.galoyapp
Thanks for trying. It might be that installing a new #[5] soon will solve this.
