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Meta has shut down global accounts linked to providing advice on abortion and LGBTQ+ content, raising concerns about censorship and access to information on reproductive health and rights.

The article explores how Craft, a software company, aims to create products that evoke emotions and meaningful experiences for users, rather than solely focusing on features or efficiency. It emphasizes Craft's mission to craft software that makes people feel something.

Rivian unveils its custom silicon R2 LiDAR, a roadmap for universal hands-free driving, and details on its next-generation autonomy platform. The article highlights Rivian's advancements in developing in-house technology to enhance the safety and capabilities of its electric vehicles.

Hey HN, Waleed here. We're building Sim (https://sim.ai/), an open-source visual editor to build agentic workflows. Repo here: https://github.com/simstudioai/sim/. Docs here: https://docs.sim.ai.

You can run Sim locally using Docker, with no execution limits or other restrictions.

We started building Sim almost a year ago after repeatedly troubleshooting why our agents failed in production. Code-first frameworks felt hard to debug because of implicit control flow, and workflow platforms added more overhead than they removed. We wanted granular control and easy observability without piecing everything together ourselves.

We launched Sim [1][2] as a drag-and-drop canvas around 6 months ago. Since then, we've added:

- 138 blocks: Slack, GitHub, Linear, Notion, Supabase, SSH, TTS, SFTP, MongoDB, S3, Pinecone, ...

- Tool calling with granular control: forced, auto

- Agent memory: conversation memory with sliding window support (by last n messages or tokens)

- Trace spans: detailed logging and observability for nested workflows and tool calling

- Native RAG: upload documents, we chunk, embed with pgvector, and expose vector search to agents

- Workflow deployment versioning with rollbacks

- MCP support, Human-in-the-loop block

- Copilot to build workflows using natural language (just shipped a new version that also acts as a superagent and can call into any of your connected services directly, not just build workflows)

Under the hood, the workflow is a DAG with concurrent execution by default. Nodes run as soon as their dependencies (upstream blocks) are satisfied. Loops (for, forEach, while, do-while) and parallel fan-out/join are also first-class primitives.

Agent blocks are pass-through to the provider. You pick your model (OpenAI, Anthropic, Gemini, Ollama, vLLM), and and we pass through prompts, tools, and response format directly to the provider API. We normalize response shapes for block interoperability, but we're not adding layers that obscure what's happening.

We're currently working on our own MCP server and the ability to deploy workflows as MCP servers. Would love to hear your thoughts and where we should take it next :)

[1] https://news.ycombinator.com/item?id=43823096

[2] https://news.ycombinator.com/item?id=44052766

The article is a letter from the founder of System76, the company behind the Pop!_OS Linux distribution, discussing the company's commitment to open source, its vision for the future of Pop!_OS, and its efforts to maintain a strong community around the operating system.

A developer accidentally discovered child sexual abuse material (CSAM) in AI training data and reported it to Google. Despite his good intentions, Google banned him from their platforms for violating their policies, raising concerns about the challenges of addressing harmful content in large-scale AI systems.

The article discusses two security vulnerabilities discovered in React Server Components: a denial of service vulnerability and a source code exposure vulnerability. The vulnerabilities could potentially allow attackers to disrupt server operations or gain access to sensitive server-side code.

The article explores the longstanding debate over whether Crick and Watson unethically used Rosalind Franklin's data in their discovery of the DNA double helix structure. It provides a balanced perspective on the complex historical and scientific context surrounding this controversy.

The article explores the architectural design and decision-making process behind the 'Not Bad' podcast, delving into the technical aspects, creative considerations, and the goal of crafting an engaging listening experience for the audience.

McDonald's removed an AI-generated Christmas advertisement after facing backlash, as the ad was criticized for lacking human authenticity and being tone-deaf to the holiday season.

The article discusses the growing trend of age verification on the internet, outlining the potential risks and providing a resource hub to help users fight back against these measures, which could undermine online privacy and free expression.

Gas prices in Colorado have been falling, following a national trend of declining fuel costs. The article examines the factors behind this price drop, including reduced demand and global market conditions.

Deno version 2.6 introduces several improvements, including better performance, more secure defaults, and new features such as a new debugger and support for streaming responses.

This article explores the unique and disturbing behavior of the parasitic tongue-eating louse, which attaches itself to the mouths of fish and eventually replaces the host's tongue, living symbiotically and becoming the fish's new tongue.

The article discusses Augment's choice of GPT-5.2 as their model for code review, highlighting its advanced capabilities in understanding and analyzing code, as well as its ability to provide contextual feedback and suggestions to developers.

The article explores how Flock Safety, a private company providing license plate reader cameras, continued operating in some cities even after local authorities asked them to turn off the cameras. The article examines the company's practices and the implications for privacy and law enforcement oversight.

The article explores the challenges of raising more than two children, discussing the financial, emotional, and practical difficulties that come with a larger family size. It highlights the perspectives of parents who have chosen to have fewer than three children.

The article discusses the challenges of getting a Verifier, a crucial component for distributed systems, to work correctly. It highlights the technical complexities involved and the importance of thorough testing and verification to ensure the Verifier's reliability.

The article discusses Twitter's recent filing of trademark applications for the term 'Operation Bluebird', which has sparked speculation about the company's potential plans for a new product or feature. The article explores the implications and possible motivations behind this trademark filing.

OpenAI, the artificial intelligence research company, has launched Gemini, a new AI system intended to be more powerful and capable than its previous model, GPT-3. The launch comes amid concerns about the potential risks and misuse of advanced AI technology.