arbonomous switch

If you stop answering, one person you trust gets it. Otherwise nobody ever sees it.

1. Your letter Your first name (so they know it's from you) Who is it for? Their first name 2. How often should I ask "still here?"

I keep your letter scrambled. I can't read it.
The other half of the lock goes only to your person, in the message you send them.
Not a legal will. It needs Telegram to deliver.

Locked.

Now send your person their invitation. They tap it once, and that's all they ever do.

Waiting for them to tap accept.

Only send the invitation to your person. Don't post it anywhere, and don't paste it into the bot chat.