Polymarket made prediction markets mainstream, but none of them cover what Finns actually care about: our elections, our hockey players, our TV shows, our electricity prices. So I built one: Povaamo. I built it with Next.js, Postgres and Claude Code as my pair programmer. How it works: every question has a price that equals the crowd's probability. If you disagree, you buy the other side and the price moves. When the event happens, the market resolves. Design decisions I'm happy with: Play money only. The currency is the Finnish markka, which disappeared in 2002. It can't be bought or cashed out, which keeps it out of gambling law. The best forecaster each month still gets a real gift card. No ads, no tracking cookies, and nobody else can see your predictions. Political predictions are personal. A clear line on topics. No wars, no deaths, no private lives. There are plenty of interesting questions without going there. What surprised me: how fast prices react to news. When the NHL season started without one of our hockey stars getting a contract, his market dropped from 80 % to 22 % in two days, then bounced back to 68% when new rumors started. What I'm still figuring out: whether people stay engaged without real money and which topics keep them coming back. If you've built something for a small, local audience, I'd love to hear what worked for retention. povaamo.fi (in Finnish)   submitted by   /u/Worried_Map6443 [link]   [comments]