I am pretty sure that nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq3qamnwvaz7tmwdaehgu3wd4hk6tcqyprqcf0xst760qet2tglytfay2e3wmvh9asdehpjztkceyh0s5r9cpvx58v, the shipping machine, is actively working on Amethyst, as are the nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqyw8wumn8ghj7mn0wd68ytfsxyh8jcttd95x7mnwv5hxxmmdqqszpxr0hql8whvk6xyv5hya7yxwd4snur4hu4mg5rctz2ehekkzrvcsuxfmc guys on their excellent client.
As for Primal, we shipped our latest Android release just over a week ago. Not fair to say that Android is abandoned by nostr devs.