Publishing a book can feel overwhelming for first-time authors.
From ISBNs and formatting to book sizes and printing costs-there s a lot most writers never learn before publishing.
That s why we re building Double9Books-a platform focused on simplifying publishing knowledge for aspiring authors through practical guides, resources, and insights.
Some topics we ve recently covered: Standard book sizes Paperback vs hardcover ISBN explained simply Printing & formatting basics Self-publishing tips
Hi Product Hunt! I wanted to share a project that has been my obsession and my therapy for the last few months: Youguide.
I m a solo founder from Argentina, balancing my life as a Director of a Coaching school while building this app. But the real "why" is personal: I built this to honor my late mother s curiosity. She taught me that every place has a story, and I didn't want those stories to be lost in robotic GPS descriptions.
What is it? It s a storytelling app for travelers. Instead of just showing you a map, it tells you the "Side B" of the places you visit.
The milestone: Today, we hit a massive goal for a solo project:
I wanted to share something we ve been working on at Free Document Maker (FDM AI) to help simplify the daily grind of document creation.
We realized that most "AI Writers" either hide their best features behind a login or slap a massive watermark on your PDF unless you pay. We decided to do the opposite.
What is it? A browser-native AI suite designed to generate, format, and export professional documents instantly. Whether you need a resume, a legal agreement, or a quick invoice, you can just prompt and download.
Here's what I noticed: AI tools like ChatGPT, Perplexity, and Claude are becoming the new discovery layer. When someone asks "what's the best tool for X?" AI gives an answer. And if your product isn't in that answer, you're invisible.
The problem? Most solo founders have no idea where (or if) AI mentions their product. The big players have teams monitoring this. We don't.
Hi all, I want to share and discuss a product I have made called Snaplyze. Most of us find out about great tools, repos, and models about 6 months too late - not because we're not paying attention, but because the noise-to-signal ratio is brutal. Plus, too much information is overwhelming.
I built Snaplyze to address this issue for me. It's a digest app for devs, PMs, and founders that surfaces what's worth knowing - repos, R&D, models, new frameworks, emerging products - and breaks each one down in three layers:
10-second product info - is it even worth your time?
Full breakdown - how to use it, who it's for, Dev/PM/Founder playbooks, competitors, market angles
Deep dive - architecture, citations, technical depth for when you really need to go all in
There's also an Explore feed (powered by HN Algolia) for real-time breadth, plus streaks and bookmarks to make it a daily habit rather than a one-off visit.
Something I've been curious about: how many of you have noticed your LinkedIn posts performing differently based purely on how they're formatted not the content itself?
I've been digging into this while building a social scheduling tool, and the formatting layer on LinkedIn turns out to have a much bigger effect on reach than I expected.
A few things that surprised me:
Posts with external links in the body consistently underperform the same post with the link moved to the first comment. The algorithm appears to treat outbound links as an exit signal. Line breaks that look correct in the editor often collapse on mobile not a display glitch, just how LinkedIn renders them on different clients. The "see more" cutoff is shorter on mobile (~210 chars) than desktop, so hooks that work on one don't always land on the other.
My partner and I kept stalling on home design. Not because of budget because we couldn't see it before committing. Pinterest boards don't work. Mood boards confuse more than they help.
So I built RoomLustra upload your room, pick a style, see the transformation before touching anything.
The biggest lesson building it: people don't want more design options. They want confidence in the one decision they've already half-made. That insight completely changed how we built the product.
Makers have you found that the real friction in your product is emotional, not functional? Would love to hear how you handled it.
Running a company means juggling Slack, Jira, Linear, HubSpot, Zendesk, Google Calendar and 10 other tools every single day.
The problem is none of them talk to each other. Things get committed to in meetings and disappear. Replies go unanswered for days. Work stalls with no clear owner. And you only find out when it's already too late.
