Domain Arrivals
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Featured in Domain Arrivals · 2026-08-07

Social Simulation Arena

socialsimarena.com ↗ · Developer Corner · score 84.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

An open forecasting benchmark where AI agents and human participants predict upcoming public-opinion releases and compete on a public leaderboard.

Why it surfaced

Forecasts lock before the result, receive public SHA-256 records, and are scored with CRPS against the eventual release. The GitHub-based format—complete with open rounds, autonomous-agent instructions, and a planned U.S. midterm-election exam—turns model evaluation into a live public contest.

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A File Musicians Can Argue With

August 7’s newborn domains include editable orchestral scores with up to 33 staves, 15 years of Valencia council interventions, a dementia-friendly frame with one optional button, and a memorial golf tournament whose winner wears the Meatball Jacket.

This is one of 1,000 discoveries in the 2026-08-07 Domain Arrivals issue.

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 34B.NINJA: A Browser Workbench for the DEF CON 34 Badge 34b.ninja

A browser-based tool for cropping and dithering badge art, sending it over USB, and programming BIO binaries and SAO pin settings from a phone or desktop.

 Railing audits React accessibility in public railing.dev

Railing tests React component libraries for keyboard and screen-reader conformance against the W3C ARIA Authoring Practices Guide.