1. Show HN: Omnara – Open-Source Alternative to Claude Managed Agents (github.com)

The open-source managed agent platform. A self-hostable alternative to Claude Managed Agents and OpenAI's Agents API. - omnara-ai/omnara

Omnara is developing an open-source API that allows users to create and manage durable agents through simple API calls. The platform provides features such as command sandboxes, secret management, permissions, and role-based access control (RBAC). Agent states are stored in Postgres, enabling persistence across restarts and ensuring no cost while idle, along with messaging and event streaming capabilities.

2. Show HN: Sumi.css – CSS Framework (github.com)

A minimalist, classless-first CSS framework. Contribute to vladocar/Sumi.css development by creating an account on GitHub.

Sumi.css is a minimalist CSS framework that prioritizes a classless approach, making it easy to style web projects without the clutter of traditional frameworks. Join the development on GitHub to see how it simplifies styling.

3. Show HN: ULDA – Client-side encryption with a simple JavaScript API (demo.ulda.io)

Make room for your ideas. A collaborative room planner with client-side encryption, powered by ULDA.

ULDA offers a solution for client-side encrypted storage that synchronizes across devices while keeping data secure on your server. Initially developed for a chat application, it addresses the challenge of authentication without compromising data privacy.

4. SimCity, but with Permits (permit.petercai.com)

Build the city of your dreams. Subject to approval. A free city builder about zoning, hearings, lawsuits and reelection.

Create your ideal city while navigating the complexities of zoning laws, public hearings, and legal challenges in this unique city-building game. Balancing creativity with bureaucratic hurdles adds an intriguing twist to the simulation experience.

6. Show HN: I told people I'm a convicted felon after 20 years of hiding it (buford.bg)

Engineer, founder, dad, expat. Formerly homeless, convicted felon (pardoned). Retired at 38.

A former engineer at Eventbrite shares his experience of living with a hidden felony conviction for two decades and the challenges he faced in both personal and professional life. His story highlights the stigma surrounding felons and the impact on opportunities, prompting a discussion on transparency and acceptance in the tech industry.

13. Show HN: Death Plan Switch, a self-hosted dead man's switch for solo devs (deathplanswitch.com)

A free, self-hosted dead man

Peter Bishop has developed a self-hosted tool called Death Plan Switch that ensures a smooth transition for solo developers in case of unforeseen circumstances, such as death or incapacitation. His personal experience with a health crisis that jeopardized his business inspired this solution to help others avoid similar pitfalls.

16. Show HN: Rouler – Steer Windows traffic per app or IP across multiple interfaces (rouler.io)

Rouler is split tunnelling for Windows. Send each app, IP or subnet out the network interface you choose, with several VPNs running at once. Free public beta.

Rouler offers a way to manage network traffic on Windows by directing it based on specific applications or IP addresses across multiple interfaces. This tool allows users to run different VPN clients simultaneously and assign specific traffic to each, making it easier to optimize their online privacy and performance.

17. Show HN: Jev Cards, Can you beat a vision model at a picture quiz? (jevcards.com)

100 picture cards: fruit, flags, maps, chess, illusions. Jev answers in about 0.3 s. Race it in Sprint, Versus or Streak.

Test your skills against Jev, a new vision model that can answer quiz questions based on images in just a fraction of a second. The game features a leaderboard and is designed to challenge your knowledge while showcasing Jev’s impressive capabilities.

21. Show HN: The Zelda timeline to catch up before the Ocarina of Time remake (legendofhyrule.com)

The Zelda timeline and Hyrule's history from Creation to the Upheaval. After Ocarina of Time the timeline branches into the child, adult and fallen-hero eras.

A fan has created a detailed timeline of the Zelda series to help players refresh their memories before the Ocarina of Time remake launches. The timeline not only follows Nintendo’s official lore but also features a unique visualization that highlights the branching paths of the story based on Link’s success or failure.

23. Show HN: VoidAccess – open-source dark web OSINT, from query to a graph (github.com)

Self-hosted dark web OSINT platform. Automated threat intelligence from query to graph in 13 steps. Free alternative to Recorded Future, DarkOwl, and Flare. - KatrielMoses/voidaccess

VoidAccess is an open-source tool designed to enhance security research by simplifying the navigation of dark web content. Developed by a security enthusiast, it aims to provide a more effective alternative to existing paid tools, making OSINT (Open Source Intelligence) more accessible.

25. Show HN: I built a task system to handle the drudgery so I could focus on tasks (3anddoneapp.com)

Say or type what's on your mind and watch it become the three things that matter β€” no signup, ~30 seconds.

A software engineer has developed a task management system called 3 & Done, designed to streamline your to-do list by allowing voice and text input. It prioritizes your daily tasks and sends you a morning email with the top three items to focus on, helping you tackle your most important responsibilities efficiently.

27. Show HN: WhatsApp MCP running free on Cloudflare (github.com)

A read-only MCP server that lets your AI agent search and read your own WhatsApp messages. Runs on Cloudflare Workers. - finereli/whatsapp-mcp

A developer has created a free solution to access WhatsApp messages on mobile through Cloudflare, bypassing the need for WhatsApp Business or a dedicated server. The tool integrates with Google to display contact names, enhancing the user experience by improving search functionality.

28. Show HN: Esp32sim – Run ESP32 firmware in the browser (github.com)

Open-source ESP32 emulator. Run real firmware locally or in your browser β€” no hardware, no cloud, no subscription. - mikroverk/esp32sim

An open-source emulator lets you run ESP32 firmware directly in your browser or locally, eliminating the need for any hardware or subscriptions. It’s a handy tool for developers looking to test and develop without the typical setup.

29. Show HN: High-quality duck audio synthesizer (celphase.github.io)

A live duck pond: a small flock of mallards, every call synthesized as it happens and heard from where you stand on the bank.

Experience a real-time audio simulation of a duck pond, where every quack and call from a flock of mallards is synthesized on the spot, creating an immersive sound environment right from the bank. Perfect for nature enthusiasts and sound designers alike, this project blends technology and the beauty of the outdoors.

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