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.
Reselling AI API credits at half price violates most provider terms of service.
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.