Amazon provided the send-to-Kindle functionality for years. But they stopped all the developments a few years ago, leaving users in frustration.

As someone who read a lot of blog posts and online content, I'm one of those frustrated users.

I saw the demand and decided to build a better alternative.

By building in public on Twitter.

I built the MVP in a weekend, shared it on Twitter and got some tractions. A few weeks later, someone mentioned KTool on Hacker News and I got my first sale.

Mostly on Twitter and by word of mouth. I started exploring SEO and Reddit but haven't yet to find success.

— I think the most difficult thing is to get started. Don't treat it as a new startup and you would overthink a lot of things. Treat it as a weekend project you build for fun—then share it on Twitter/Reddit/IndieHacker.

— Ask questions. People love to give suggestions on things you're working on, but only if you ask for it.

— If you're struggling with marketing like myself, try building in public on Twitter. The BIP community there is really supportive.