teams

spaceappschallenge.org

Free

NASA International Space Apps Challenge 2026

A free global hackathon on November 14–15, 2026 using NASA and partner open data to address space and Earth challenges. Participation is available at in-person or virtual local events and through a virtual Universal Event. An account and registration are required; minors have guardian requirements.

Details: Official participant FAQ confirms no participation cost. Account, email verification and event registration are required. Participants under 18 must be registered and accompanied by a parent or legal guardian; local events may have additional requirements.

spaceappschallenge.orgAdded Oct 12, 20260 opens

GitHub

Free

LibreChat

An open-source chat app you host yourself that talks to many model providers at once, with user accounts, presets and file uploads. MIT licensed.

From the site: Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching,...

Why I recommend it: Good for a small team who want one chat tool across several providers without paying per seat.

GitHubAdded Sep 17, 20260 opens

xprize.org

Free

XPRIZE Active Competitions

Every open XPRIZE challenge with its prize purse, deadlines and entry requirements — multi-million-dollar competitions in health, climate, education and AI.

Details: Free to enter and open to teams anywhere — a real route to funding if you have a technical idea and a team.

xprize.orgAdded Sep 17, 20260 opens

nonprofitaf.com

Free

Triangulation: what it is, and tips to avoid being caught up in workplace drama

How triangulation works in teams, why it damages trust, and practical ways to stay out of it at work.

Why I recommend it: Name the dynamic and it loses most of its power. Worth reading before your next tough conversation.

nonprofitaf.comAdded Sep 13, 20260 opens