Bitaxe Naja Duo Becomes First Open-Source Bitcoin Miner to Break 10 J/TH Barrier

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The Bitaxe Naja Duo, set to ship next week, is the first open-source home Bitcoin miner to achieve sub-10 joules per terahash efficiency, running at 9.5 J/TH at stock settings. It is built around two BM1373 chips — Bitmain's 3nm SHA-256 ASICs from the Antminer S23 generation — which carry no public datasheet and required community reverse-engineering to operate. An ESP32-S3 microcontroller runs the open-source esp-miner firmware, handling chip initialisation, work distribution, nonce collection, and a self-hosted web interface called AxeOS. The dual-chip design introduced per-chip temperature monitoring and a 2-phase voltage regulator to manage heat and power delivery more precisely than earlier single-sensor boards. All performance metrics are accessible via a REST API, and the firmware is released under GPL-3.0, requiring any shipped derivatives to publish their source code.

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Korean Startup Cuts Herbal Medicine Prep Time from 300 to 5 Minutes Using AI

South Korean startup Onerve, backed by the Korea Institute of Oriental Medicine, has developed an AI-powered system called HAP that reduces the preparation time for a single dose of Korean herbal medicine from approximately 300 minutes to just 5. The system integrates with electronic medical records to automate manufacturing, cleaning, packaging, and inventory management, using standardized freeze-dried herb cartridges instead of traditional on-site boiling. Crucially, the AI handles only the manufacturing process — diagnosis, prescribing, and dosage decisions remain entirely with licensed Korean medicine doctors. Onerve won a CES Innovation Award and completed a Series A funding round of around 6.2 billion won, while a rival firm, Camelotech, is developing a similar system. The key technical challenge was not building the machinery itself, but standardizing raw herbal ingredients into uniform cartridges precise enough for automated handling.

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ProgrammingDEV Community ·

Cloudflare Launches AI Agent Wallets With Built-In Spending Caps via Stablecoins

Cloudflare announced on August 4 the launch of Cloudflare Wallets and cloudflare.pay, a system that gives AI agents a digital identity, a stablecoin-funded wallet, and infrastructure-enforced spending caps. The architecture separates funds into a master Account Wallet controlled by the human user and individual Virtual Wallets assigned to AI agents, functioning like prepaid cards with preset limits. Transactions are processed through the x402 protocol, enabling agents to pay for services on a per-transaction basis using stablecoins. The product is currently in a name-reservation phase, with full funding, Virtual Wallets, and programmatic controls expected to roll out over the coming months. The move follows a broader industry push into AI agent payments, with Mastercard, Google, Coinbase, and Circle all launching competing or complementary frameworks in 2025 and 2026.

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ProgrammingDEV Community ·

Developer builds AI-powered lo-fi radio station using Nuxt, Bedrock, and OpenRouter

A developer has released an open-source project called 'Compile & Chill', a full-stack lo-fi music radio station built with Nuxt, Amazon Bedrock, ElevenLabs, and OpenRouter. The application features three radio stations, each capable of generating 16:9 scene illustrations via Stability AI on Amazon Bedrock, composing instrumental music loops through ElevenLabs, and animating scenes into short videos using OpenRouter. Generated media files are stored privately in Amazon S3 and served to the browser through the Nuxt server layer, keeping API credentials secure on the server side. The project also includes a Stream Deck API interface and infrastructure-as-code setup via AWS SAM for easier cloud deployment. Full source code is publicly available on GitHub, and the app remains partially functional even without provider API keys configured.

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ProgrammingDEV Community ·

Developer launches free no-code Bluesky feed builder for niche tech topics

A tool called feedbuilder now lets anyone create a custom, pinnable Bluesky feed using just a few keywords, with no login, coding, or AI required. Built by autonomous AI agent Rowan Adeyemi, it runs entirely on a single Cloudflare Worker and avoids the usual infrastructure overhead of firehose consumers and dedicated databases. Instead of indexing posts in real time, it queries Bluesky's own search API on each request, returning matching post URIs instantly. The tool was created to fill a gap in Bluesky's feed directory, where niche developer topics like Postgres, Redis, Docker, Grafana, and ClickHouse lacked dedicated feeds. Pre-built feeds for those topics are already live, and users can generate new ones in roughly 15 seconds at feedbuilder.cronpulse.workers.dev.

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