Your first launch can be a quiet one. A handful of people trying something you made can teach you more than a big announcement with nobody behind it. Start by making the product understandable and easy to try.
Explain one useful outcome.
Write one sentence that names the person, the problem, and the result. “A simple checklist for student clubs planning their next event” is easier to understand than a broad promise about transforming collaboration. Show the result with a short example.
Choose a place you understand.
Start with a group you belong to, people who shared the original problem, or a community where the topic already comes up. Read the rules before posting. Share something useful about the problem and be clear that you made the tool. Reach a few relevant people before trying to reach everyone.
Give people a specific invitation.
Ask someone to try one task: “Could you use this to plan your next club meeting?” Explain what is ready and what is still rough. Make the next step obvious, and provide a way to tell you when something goes wrong.
Watch what happens after the click.
Did they finish the task? Where did they stop? Did they come back when the problem happened again? Write down what you can actually observe. A compliment, a visit, a completed task, and a paying customer tell you different things.
Make the second version about what you learned.
Fix the most common stumbling point. Talk to the people who tried it. Keep your scope small enough to respond. A launch is the beginning of a conversation, and a useful reason to keep making the product better.