
LDBD — Prediction Leaderboard · You called it? Prove it.
Publish predictions on stocks, ETFs, and crypto, then track outcomes on a public leaderboard.
kkjh0723 · HN
I ran 12 AI bots predicting stocks for two months, every call public
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Publish predictions on stocks, ETFs, and crypto, then track outcomes on a public leaderboard.
kkjh0723 · HN
I ran 12 AI bots predicting stocks for two months, every call public

Share and collaborate on standalone HTML files in real time. Leave comments, drop sticky notes, and edit files directly in your browser.
u/Vast-Grapefruits · Reddit
I built a tool to collaborate on HTML artifacts like a PowerPoint As a consultant, I've watched artifacts become more common as a way to communicate ideas and insights, both internally and with clients. The problem is there's no good way to comment on them, collaborate, or make quick edits; so in practice, they're slow to actually use. I built a free tool that lets you leave comments and edit directly, all while sharing with your team. After you make your edits you can export

Submit your project to receive structured feedback from real testers.
@martin_sllz · X
New founder just shipped a project on Small number, but every one is a real person who chose to get honest feedback instead of "looks great". Building this one roast at a time. #buildinpublic

Daily questions game where you compare honest answers with friends, groups, and the world.
@checkmurmur · X

Collect and display customer testimonials with analytics to track conversion impact.
@AmyVaradkar · X
It solves the scattered testimonial problem. Freelancers and agencies collect feedback via shareable form, display it anywhere, get real analytics on what converts. Beta access available right now which gives free pro plan for 15 days.

Share the vinyl records you're spinning and see what other collectors are playing.
geekamongus · HN
I collect records and I build apps in my spare time (and listen to records while I build apps), and this is what happens when those two things run into each other. Many people post photos of what they have spinning on their turntables on social media, and most never get any engagement. It occurred to me that people might want a better way to do this, and bringing them together in a niche social site might help. So I made Wax Spinner. Connect your Discogs (the de-facto vinyl collector's catalogue) account, post whatever you're playing with an optional note, and it lands in a feed where people can like it and comment. You can also browse anyone's full collection on their profile, and filter the feed by genre, pulled straight from Discogs metadata. The conversation and the discovery are the primary purpose. The details this crowd might find interesting: every spin generates its own OpenGraph share card on the fly, with cover art, artist, year, and notes rendered server-side and cached

Turn your résumé into an evidence-first portfolio with AI-guided suggestions for improvement.
@Showcase_app1 · X
Building Showcase: turns a résumé into an editable, evidence-first portfolio for final-year students and new grads. AI-assisted drafts, nothing invented. Build/edit/preview free; live publishing is Pro.

Marketplace connecting brands with creators to produce content with payment escrow.
@john_previn · X

Want more eyes on your product, app, post, video, or anything? Paste its link and own the spotlight.
@Attwts · X

Connect your X, Instagram, GitHub, LinkedIn, and other social profiles. Create your public profile and see where you rank in the community.
@shubhranshu2009 · X

Rank any link with sats. Keep stacking the same link to climb. Show them Bitcoin is the way.
@ShirelAttlan · X

Bid from $3, move up the live product leaderboard, and measure the real clicks your position earns.
@borrhensaidi · X