Show HN: Founders Feed

Founders Feed, a daily newsletter for startup founders, highlights Supabase's launch of Realtime v3, which supports 100k concurrent connections per node with per-channel auth and usage-based pricing, making multiplayer side projects 10x cheaper to run. The newsletter also covers OpenAI's launch of Presence, an enterprise AI agent platform, and Google DeepMind's release of Gemini 3.6 Flash, 3.5 Flash-Lite, and 3.5 Flash Cyber, alongside a report that 34 companies joined the Crunchbase Unicorn Board in June, including 10 AI labs.

FOUNDERS FEED Every multi-million-dollar startup began with someone who saw it first. For less than a coffee a week, that's you — every morning. free tier · full lens $9.99/mo · cancel anytime Two things every subscriber gets. Poke around — no signup needed. Supabase launches Realtime v3 with 10x connection density The Realtime engine was rewritten for 100k concurrent connections per node, with per-channel auth and usage-based pricing. Why it matters — Your multiplayer side project just got 10x cheaper to run — one hobby-tier node now handles launch-day traffic. same story · four readers · subscribers get this on every story · build your lens → /login demo · subscribers get 30 real questions a day · start free → /login AIsignal 4/5 · OpenAI Blog https://openai.com/index/introducing-openai-presence OpenAI Launches Presence: Enterprise AI Agent Platform AIsignal 4/5 · OpenAI Blog https://openai.com/index/hugging-face-model-evaluation-security-incident OpenAI and Hugging Face Address Security Incident in Model Evaluation AIsignal 4/5 · Google DeepMind https://deepmind.google/blog/introducing-gemini-36-flash-35-flash-lite-and-35-flash-cyber/ Google DeepMind Releases Gemini 3.6 Flash, 3.5 Flash-Lite, and 3.5 Flash Cyber FUNDINGsignal 4/5 · Crunchbase News https://news.crunchbase.com/venture/new-unicorn-board-startups-exits-ai-semiconductors-june-2026/ 34 Companies Join Crunchbase Unicorn Board in June; 10 Are AI Labs Compile 20+ wire sources in at dawn. Every story scored 1–5 by signal. Personalize Every why-it-matters rewritten through your stack and product. Ask A real terminal on today's stories — multi-turn, grounded, /commands. STAY AHEAD OF YOUR NICHE The full lens, the terminal, and around-the-clock signal — one plan, cancel anytime. - ✓Full lens on every story — why it matters for what you're building - ✓Sentinel scouts the web daily for your niche - ✓30 terminal questions a day - ✓Follow up to 10 sources & creators - ✓Cancel in two clicks — no lock-in no lock-in · cancel anytime · powered by stripe read first. build faster.