Amber isn't even available on Google Play.

You gotta offer users options. 99% of newbies won't even click on log in with Amber.

Fair point, but that's an argument for NIP-46, not local nsec storage. If Amber isn't accessible to Google Play users, it seems to me the solution is a signing flow that doesn't require it—but still retains the option for users who can sideload, at least for now. Not putting the key directly in the client. A user who can't install Amber probably shouldn't be managing a raw nsec either. @greenart7c3 any plans to bring Amber to Google Play?

No plans for Google play for now, I tried for almost a month to get the sms verification to work and after that they fucked up the LLC name and I could not finish the KYC process.

That sounds incredibly frustrating. I sincerely hope it changes before Google locks down sideloading on certified Android devices entirely. A lot of people run GrapheneOS as a secondary privacy device, not a primary device—I'm one of them. The overwhelming majority of people don't have a GrapheneOS device at all. Not having Amber would seriously affect many people's relationship with Nostr altogether. As you know as well as anyone, you can't rotate a compromised nsec. Thank you for the important work you do.

I fear there will be only a negligible difference between the state now and then. What motivation would Google have to do otherwise? I want to introduce Linux on Mobile to the family as a daily driver, but I'm afraid that my sadomasochism is not strong enough to enjoy the amount of pain this will cause... We are approaching dark times, I'm afraid.