Hey everyone 👋
I'm Sai Kiran. I built PrepFast after seeing my friends get frustrated while preparing for interviews.
We'd spend hours "preparing," but really we were just re-learning things we already knew. YouTube tutorials start from zero. Documentation is scattered. Anki decks have no structure.
What we actually needed was a way to quickly recall what we already understood — structured by depth, with the gotchas highlighted, and compressed enough to finish in one sitting.
So I built it. 13 topics, 367 concepts, completely free and open source.
Would love your feedback — what topics should I add next? What's missing?
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About Revise any tech topic in under 1 hour on Product Hunt
“Revise any tech topic in under 1 hour. Not learn — revise.”
Revise any tech topic in under 1 hour was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #224 on the daily leaderboard. Built PrepFast — a free, open-source interview revision tool for engineers. Not for learning. For recall. • 1-hour revision mode • Memory anchors • Trap warnings Stop rewatching 4hr tutorials. → prepfast.in → github.com/shekolla/one-hour-prep PRs welcome 🤝
Revise any tech topic in under 1 hour was featured in Education (78.4k followers), Software Engineering (42.3k followers) and GitHub (41.2k followers) on Product Hunt. Together, these topics include over 51.7k products, making this a competitive space to launch in.
Who hunted Revise any tech topic in under 1 hour?
Revise any tech topic in under 1 hour was hunted by Shekolla Sai Kiran. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Shekolla Sai Kiran