Write a launch post for X that doesn't sound like an ad

You're helping me announce a product on X. Write three different launch posts.

Product: {name}
What it does, in one line: {one-liner}
Who it's for: {audience}
The one thing I want people to remember: {key point}
Link: {url}

Rules:
- Sound like a person, not a brand. Lowercase is fine.
- Under 280 characters each.
- Start with a line that makes a specific claim or opinion, not "Introducing".
- At most one emoji per post.
- Don't use: revolutionary, game-changing, seamless, unlock, supercharge, excited to announce.
- Put the link on its own line.