Wednesday, December 31, 2025

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Thursday, December 25, 2025

New top story on Hacker News: Show HN: Lamp Carousel – DIY kinetic sculpture powered by lamp heat

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Show HN: Lamp Carousel – DIY kinetic sculpture powered by lamp heat
17 by Evidlo | 0 comments on Hacker News.
I wanted to share this fun craft activity for the holidays that I've been doing with my family over the last few years. I came up with these while cutting up some cans trying to make an aluminum version of paper spinners. There are a variety of shapes that work, but generally bigger+lighter spinners are better. Also incandescent bulbs are the best, but LEDs work too. They remind me of candle carousels I would see at my grandparents' house during Christmas. Let me know what you think!

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Wednesday, December 24, 2025

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Saturday, December 20, 2025

New top story on Hacker News: Show HN: HN Wrapped 2025 - an LLM reviews your year on HN

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Show HN: HN Wrapped 2025 - an LLM reviews your year on HN
10 by hubraumhugo | 3 comments on Hacker News.
I was looking for some fun project to play around with the latest Gemini models and ended up building this :) Enter your username and get: - Generated roasts and stats based on your HN activity 2025 - Your personalized HN front page from 2035 (inspired by a recent Show HN [0]) - An xkcd-style comic of your HN persona It uses the latest gemini-3-flash and gemini-3-pro-image (nano banana pro) models, which deliver pretty impressive and funny results. A few examples: - dang: https://ift.tt/QADM6Gl - myself: https://ift.tt/sB1wl3c Give it a try and share yours :) Happy holidays! [0] https://ift.tt/BZHLPjM

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Friday, December 19, 2025

Thursday, December 18, 2025

England staring at Ashes defeat after Australia dominate on day two

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England's batters have another day to forget as Australia dominate with the ball on day two of the third Ashes Test, with the tourists closing on 213-8, still 158 runs behind Australia's first innings total of 371, with the home side closing in on an Ashes series victory with two matches to spare.

from BBC News https://ift.tt/kahS0uM
via IFTTT
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Wednesday, December 17, 2025

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Monday, December 15, 2025

New top story on Hacker News: Show HN: A pager

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Show HN: A pager
42 by keepamovin | 23 comments on Hacker News.
Hello HN, I basically don't use notifications for anything. The noise is too much. Slack is too loud. Email is too slow. But sometimes you do need a note in your face. I found myself missing 1990s pagers. I wanted a digital equivalent - something that does one thing: beep until I ack it. So I built UDP-7777. Concept: - 0% Cloud: It listens on UDP Port 7777. No accounts, no central servers. You don't need Tailscale/ZeroTier/WG/etc, it's just easy for device sets. - CAPCODES: It maps your IP address (LAN or Tailscale) to a retro 10-digit "CAPCODE" that looks like a phone number (e.g., (213) 070-6433 for loopback). - Minimalism: Bare-bones interface. Just a box, a few buttons, and a big red blinker. The Tech: It's a single binary written in Go (using Fyne). It implements "burst fire" UDP (sending packets 3x) to ensure delivery without the handshake overhead of TCP. New in v2.2.7: - Frequency Tuning: Bind specifically to your Tailscale/ZeroTier interface. - Squelch: Optional shared-secret keys to ignore unauthorized packets. - Heartbeat: Visual/Audio alerts that persist until you physically click ACK. I built this for anyone looking to cut through the noise—DevOps teams handing off the "on-call IP", or deep-work focus where you only want interruptions from a high-trust circle. I'd love to hear your thoughts on the IP-to-Phone-Number mapping logic (it's purely visual, but I'm really into it). Site & Binaries (Signed for Mac/Win): https://udp7777.com

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Sunday, December 14, 2025

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Friday, December 12, 2025

Thursday, December 11, 2025

New top story on Hacker News: Show HN: SIM – Apache-2.0 n8n alternative

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Show HN: SIM – Apache-2.0 n8n alternative
16 by waleedlatif1 | 0 comments on Hacker News.
Hey HN, Waleed here. We're building Sim ( https://sim.ai/ ), an open-source visual editor to build agentic workflows. Repo here: https://ift.tt/eMSydDx . 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://ift.tt/i81KC7Z [2] https://ift.tt/lCLhQFc

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Wednesday, December 10, 2025

Tuesday, December 9, 2025

Monday, December 8, 2025

New top story on Hacker News: Show HN: DuckDB for Kafka Stream Processing

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Show HN: DuckDB for Kafka Stream Processing
17 by dm03514 | 5 comments on Hacker News.
Hello Everyone! We built SQLFlow as a lightweight stream processing engine. We leverage DuckDB as the stream processing engine, which gives SQLFlow the ability to process 10's of thousands of messages a second using ~250MiB of memory! DuckDB also supports a rich ecosystem of sinks and connectors! https://ift.tt/Klyp86v https://ift.tt/42WNdm1 We were tired of running JVM's for simple stream processing, and also of bespoke one off stream processors I would love your feedback, criticisms and/or experiences! Thank you

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Sunday, December 7, 2025

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