Hindsight Simulator – Go back in time and get rich
Addictive what-if investment game with real historical data from 1960 onward.

Craigslist meets Google Forms, but marketplace fees already solved this.
Freelancers, students, small buyers/sellers avoiding platform fees
Craigslist · Facebook Marketplace · eBay
Offerlog is a free and simple tool to hire, sell, barter, buy, or auction without being restricted by an online marketplace:
- No account necessary
- Create and customize your campaign
- Share your public URL (on campus, social media, around town, …)
- Receive offers via private link
It's 2 parts Google Forms, one part Craigslist, one part eBay :) This is my first launch — any feedback is a huge win. Try it out and let me know what you think, bonus points if you find a bug!
Addictive what-if investment game with real historical data from 1960 onward.
Agent-to-agent commerce infrastructure for the emerging autonomous AI economy.
Insider transaction alerts from SEC Form 4, but retail trading signal detection is crowded.
This is an engineering-first take on the million-pixel idea: a 1,000,000×1,000,000 logical grid where only claimed cells hit storage and the client pulls tile-based viewport queries while a DPR-aware Canvas draws without full redraws. The clever parts are the sparse-storage model and edge serving via Cloudflare Workers+D1, but the product hinges on hard questions — D1 query scaling, cheap moderation for free text, and whether a €1-per-cell economy actually funds permanent storage.
Agent-to-agent commerce with live .well-known discovery API and tested infrastructure, not mockup.
Yet another marketplace competing with eBay and Facebook without clear differentiation.