EcoFlow PowerOcean Battery Review: Cutting My Bill in Half
Whether you want to buy cheaper electricity, store solar energy, or guard against outages, EcoFlow’s home battery might be just what you need.
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Whether you want to buy cheaper electricity, store solar energy, or guard against outages, EcoFlow’s home battery might be just what you need.
My methodology and data set didn't show any trend, but it demonstrated a more important issue: how wrongly this kind of research can be done and how misinterpreted the conclusions can be. The reason for making this research was an attempt to verify the claim that AI-assisted development increases code duplication. I analyzed 14 well-maintained open-source projects between 2021-2026, excluding new ones developed only with AI. For duplication detection, I compared semantic similarity using https://github.com/rafal-qa/slopo (I'm the author), not exact copies. This data can't prove or deny the claim, no trend is visible. Not only because 14 projects is too little, but also because there is a large variance between projects. The main advantage of this research is that it highlights the pitfalls in the analysis and conclusions and shows how easy it is to create "evidence" to support any claim. submitted by /u/rafal-kochanowski [link] [留言]
The default for AI-assisted development is one of two failure modes. Either you're babysitting the agent line by line — approving each diff, re-explaining context it dropped three messages ago — or you've handed it the wheel and you're hoping the PR that lands at the end resembles what you asked for. Son of Anton is neither. It's a delivery orchestrator built on a single claim: there are exactly three moments where a developer's judgment is irreplaceable. The orchestrator owns everything in between. The three gates Every project moves through three human decision points. Nothing important happens without you signing off. Gate 01 — Approve the WHAT ( /soa plan ) A grill-me session forces the AI to surface its assumptions, constraints, and scope decisions back to you before a single ticket exists. You say yes or you refine. It does not proceed until you have. Gate 02 — Approve the HOW ( /soa decompose ) The approved plan becomes a ticket stack — ordered, dependency-aware, sized for review. Architectural judgment stays with you. Ticket authorship goes to the agent. Gate 03 — Approve DONE ( /soa closeout ) An adversarial subagent reviews every ticket before its PR opens. When the phase is complete, you decide whether to accept. Closeout squash-merges the stack onto main. Nothing merges without you. Between the gates, you are not needed That's the whole point. Once you've approved the plan and the tickets, the orchestrator runs the loop:
Most of the "Cursor vs Claude Code" takes I read are framed wrong. It's not a cage match. They're not competing for the same job — they're good at different jobs, and once that clicked for me, both got more useful. After months of leaning on both for actual day-to-day work (not demos, not toy repos), I've settled into a pretty stable split: Cursor handles about 90% of my coding, and Claude Code handles the 10% that actually moves the needle. Here's where I draw the line, and the rule of thumb that decides it. The 90%: why Cursor owns my day Most coding isn't dramatic. It's small, local, iterative work: tweak this function, rename that, fix the bug in the file I'm already staring at, ask "what does this block do" without breaking focus. That's exactly Cursor's home turf. It lives inside the editor, so I never leave my flow. Inline edits, fast completions, quick questions about the code in front of me — all without context-switching. When the work is local and I want to stay in the loop keystroke by keystroke, an in-editor copilot is the right tool. It keeps me fast and in context, which is most of what a normal coding day actually is. The 10%: where I close the editor and open Claude Code Then there's the other kind of task — the one where I don't want to babysit every edit. Claude Code is terminal-native and agentic. Instead of sitting beside me suggesting the next line, it works more like something I hand a well-described task to and let run across the whole project. That changes what it's good for: Codebase-wide refactors that touch a dozen files at once "Understand this whole repo and do X" type tasks, where the work depends on grasping how everything connects Jobs I want to delegate and step away from , rather than steer line by line The mental model that finally made it stick for me: Cursor is a copilot sitting next to you. Claude Code is more like handing a ticket to a capable teammate and checking the result. Different relationship, different jobs. How I actu
Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is...
The Great AI Architecture Debate When building reliable AI agents, there are two dominant approaches. Approach A: Proxy Gateway (LiteLLM, Braintrust, etc.) App sends request to Gateway Proxy which forwards to LLM Provider. Requires Docker, database, operations team. Approach B: Embedded SDK (NeuralBridge) App plus SDK sends directly to LLM Provider. One dependency, pip install. The Hidden Cost of Gateways Every proxy gateway adds 30-200ms of network latency per call. For an agent that makes 10 LLM calls, that is 300-2000ms of unnecessary overhead. Latency breakdown: Gateway overhead: +30-200ms per call Docker infrastructure: +1-3 GB RAM Database operations: +PostgreSQL maintenance Ops overhead: +0.5 FTE Why Embedding Wins Embedded reliability eliminates the network hop: Factor Gateway Embedded SDK Added latency 30-200ms ~0ms Dependencies Docker, DB, Redis 1 (httpx) Install size 500MB+ 375 KB Single point of failure Yes (proxy) No Ops cost High Zero The Hybrid Reality Gateways serve a purpose for centralized logging, auth, and rate limiting. But for latency-sensitive AI agents, embedding reliability directly in the process is strictly better. The ideal stack: embedded SDK for reliability plus lightweight observability layer on top. https://github.com/hhhfs9s7y9-code/neuralbridge-sdk NeuralBridge: Apache 2.0, 1 dependency, 375 KB.
LLM API Reliability: The Reality Nobody Talks About If you have run more than a few thousand LLM calls in production, you have seen the pattern: things work perfectly in development, then fall apart under load. The Numbers Failure Type Rate Root Cause Timeout 2-5 percent Network congestion, provider throttling Rate Limit (429) 1-3 percent Burst traffic patterns Empty Response 0.5-2 percent Content filtering, model degradation Schema Violation 1-4 percent Model behavior drift 5xx Server Error 0.5-1 percent Provider-side outages Total: 5-15 percent of calls fail on first attempt. Why Retry-Only Is Not Enough Most teams implement exponential backoff and call it done. But retry alone does not help when: The provider is genuinely down (retrying into a black hole) The model has degraded silently (retrying returns the same bad output) You are being rate limited (retrying makes it worse) Self-Healing: A Better Approach Instead of naive retries, a self-healing approach: Diagnoses the failure type (~19 microseconds) Escalates through layers: retry, degrade, failover, learned rule Validates output quality across multiple dimensions Learns from each failure for next time Key Takeaways 5-15 percent of production LLM calls fail on first attempt Retry-only strategies fail when providers are degraded Self-healing with diagnosis and failover recovers 84.1 percent of faults Multi-provider routing eliminates single points of failure Try It https://github.com/hhhfs9s7y9-code/neuralbridge-sdk NeuralBridge is Apache 2.0 open source.
Show HN: NeuralBridge — We Built a Self-Healing SDK for LLM-Powered Agents After months of production experience running LLM calls at scale, we realized something uncomfortable: every AI agent eventually crashes . Not because the code is wrong, but because LLM APIs fail in ways you can't predict. Timeouts. Rate limits. Empty responses. Schema violations. Drift. These aren't edge cases — they're the norm. So we built NeuralBridge: an embedded SDK that makes LLM calls self-healing. The Problem Try running 100,000 LLM calls through any single provider. You'll see: 2-5% failure rate from timeouts and 5xx errors Rate limits that cascade through your pipeline Schema violations when models change behavior Provider-specific quirks that require custom error handling 30-200ms of unnecessary latency from gateway proxies Most teams solve this by building their own retry logic, circuit breakers, and fallback chains. It works — until it doesn't. Because the next failure is always the one you didn't anticipate. Our Approach: Embedded Self-Healing Instead of a gateway (which adds latency and infrastructure), we embedded the reliability logic directly into the SDK: from neuralbridge import SelfHealingEngine engine = SelfHealingEngine () result = engine . call ( " Write a Python function for binary search " ) if result . recovered : print ( f " Fault: { result . diagnosis } " ) print ( f " Recovery: { result . recovery_action } " ) When a call fails, the engine: Diagnoses the fault type in ~19us (P50) Escalates through 4 layers: retry -> degrade -> failover -> learned rule Validates the output across 5 dimensions Learns from the experience for next time Production Results Metric Value Auto-recovery rate 84.1% of faults Fault patterns recognized 280+ Recovery strategies 30+ Learned rules (flywheel) 88+ Diagnosis latency 19us P50 Install size 375 KB Why Open Source? We went Apache 2.0 because reliability infrastructure should be a commodity. The SDK is free and open. Pro features (ente
What is NeuralBridge? NeuralBridge is an embedded SDK (not a gateway) that makes your AI agents resilient against LLM failures. It runs inside your Python process — zero infrastructure, zero HTTP proxy, one dependency. pip install neuralbridge-sdk Your First Call import neuralbridge as nb result = nb . run ( " Explain quantum computing in one sentence " ) print ( result . text ) That's it. NeuralBridge auto-discovers your API keys from environment variables and handles multi-provider routing, self-healing, and drift detection automatically. What Makes It Different? Self-Healing Engine — When an LLM call fails (timeout, rate limit, bad response), NeuralBridge doesn't just retry. It diagnoses the fault type, degrades gracefully, fails over to another provider, and learns from the experience. from neuralbridge import SelfHealingEngine engine = SelfHealingEngine () result = engine . call ( " Write a Python function for binary search " ) print ( result . flight ) # Shows diagnosis, recovery action, latency print ( result . recovered ) # True if self-healing was activated 84.1% of production faults are auto-recovered. 19us diagnosis time P50. Why Not a Gateway? Every gateway (LiteLLM, etc.) adds 30-200ms of network latency. NeuralBridge runs in-process, adding zero additional latency. Approach Latency Dependencies Deployment Gateway (LiteLLM) +30-200ms Docker + PostgreSQL Ops team SDK (NeuralBridge) +0ms 1 (httpx) pip install Key Features 4-Layer Self-Healing : L1 retry -> L2 degrade -> L3 failover -> L4 flywheel 5-Dimension Validation : JSON Schema, semantic, entity, taboo, composite Multi-Provider Routing : DeepSeek, OpenAI, Anthropic, and 12+ more Drift Detection : Catch model regressions before users do Carbon Tracking : Per-provider carbon footprint per call Open Core : Apache 2.0 license, 375 KB install size See It in Action import neuralbridge as nb result = nb . run ( " Hello " , providers = [ " openai " , " deepseek " ]) print ( f " Used provider: { result . prov
The ruling holds that a company that designs, trains, operates, and manages an AI system must assume legal liability for any damages caused by the responses it generates.
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🐧 Linux for DevOps — Session 2: Understanding the Kernel, Shell, OS Architecture & File System 📓 Learning in public — These are my personal notes from my Linux for DevOps & Cloud journey. I'm sharing them in a way that's easy to revisit later and hopefully useful for anyone else starting out. In the previous session, I got comfortable with Linux basics and terminal access. This session focused on understanding what actually happens behind the scenes when we run commands , how Linux is structured internally, and how files are organized on the system. These concepts might sound theoretical at first, but they're the foundation of everything you'll do in DevOps—from managing EC2 instances and Docker containers to troubleshooting production servers. The Linux Kernel: The Heart of the Operating System The kernel is the most important component of Linux. Think of it as a translator sitting between software and hardware. Applications can't directly talk to the CPU, RAM, disks, or network interfaces. Instead, every request goes through the kernel. When you run a command, open a browser, start a Docker container, or deploy an application, the kernel is responsible for making it happen. Its main responsibilities include: Responsibility Purpose Resource Management Decides which process gets CPU time Memory Management Allocates and releases RAM Process Management Creates, schedules, and terminates processes Device Management Communicates with hardware through drivers Without the kernel, Linux would simply be a collection of files with no way to interact with hardware. Types of Kernels Not every operating system uses the same kernel design. Monolithic Kernel (Linux) keeps most operating system services inside a single kernel space. This approach is extremely fast because components communicate directly. Microkernel keeps only essential functionality in kernel space and moves other services outside. This improves isolation and stability but introduces additional overhead. Hybrid K
I am a solo learner. I started coding last year with the help of AI and sometimes without any tutorials or courses. At first, I thought this journey would be easier. But soon I realized something important — no AI or tool can fully solve the real problems I was facing as a developer. I used AI a lot. It explained things with confidence and even provided code. But when I ran that code in my terminal, many times it didn’t work. That’s when I understood something important: AI can guide, but it cannot replace understanding. After facing these issues, I changed my way of learning. Instead of blindly trusting AI, I started: Finding real open-source projects Studying how they were built Listing important topics from those projects Reading documentation carefully Asking AI to explain specific lines of code This helped me understand real-world code better. From this learning journey, I realized something: I should also build my own open-source projects. At first, I believed that creating a powerful project could automatically bring attention and users. But I was wrong. I made a mistake — I was not active on any platform. I was just coding inside VS Code, without communication or sharing my work anywhere. Then I realized: Being a developer is not only about coding. Visibility and communication are also important. After that realization, I started being active on platforms like Dev.to, LinkedIn, and other developer communities. I started posting my work and sharing my progress. Even though I didn’t get many comments, I started getting reactions and engagement. That small feedback gave me motivation. From this journey, I learned something important: Open source is not only about code. It is about helping other developers, sharing knowledge, and being consistent and visible. A developer should not only code silently but also participate in the community. Now I understand that coding is only one part of being a developer. Community, communication, and consistency are equally imp
Overnight agents do good work, then dump it in a log file or a noisy Slack channel. Here's a pattern for delivering their output to a private, end-to-end encrypted inbox you read with your coffee. You point an agent at a nightly job — audit the dependencies, summarize yesterday's support tickets, check the infra, scan the repo for regressions. It runs at 3 a.m. and does good work. Then the work goes... where? Usually one of three bad places: A log file you'll never open. A Slack channel that's already 200 messages deep by the time you wake up. A plaintext file on a server , which is fine until the report contains a leaked key, a customer name, or a security finding — and now it's sitting in cleartext on a box you don't fully trust. And the fix you'd reach for first — "just email the report to me" — is the one that bites hardest. You can do it cleanly: a locked-down, send-only API key sends mail and nothing else. But the path of least resistance is "connect your email account," and that grant is far wider than the job needs — now the agent can read and send your mail, not just hand you a file. I learned this the hard way. I once connected an agent to my email so it could send me updates — and it took that as license to start replying to my incoming messages on its own, without my ever asking. Mail went out under my name that I never wrote. The job was "send me a file." The access I'd handed over was "run my inbox." The work is good. The delivery is the broken part. Here's a pattern that fixes it: your overnight agent delivers its report to a private, end-to-end encrypted inbox, and you read it with your coffee — decrypted in your browser, with a passkey. What we're building cron, 3 a.m. ↓ agent does the work ↓ encrypted delivery ↓ your inbox (read at 8 a.m.) The agent produces a report (Markdown, PDF, a CSV, whatever), hands it to the Agent Relay CLI, and the CLI encrypts it locally before it ever leaves the machine. The server stores only ciphertext. When you open t
My detector passed every synthetic test with zero false positives. Then I pointed it at one real trace and found a crack. This is the honest version of where I am. I'm building Clew — a tool that finds the redundant loops, re-queries, and handoffs that silently burn tokens when multiple AI agents work together. No crash, no error, just two agents quietly re-doing each other's work while the token bill climbs. I build in public, and I publish the negatives. So here's the whole arc, including the part that isn't working yet. First, I killed my own hypothesis The original idea wasn't waste detection at all. It was failure prediction: watch the behavior between agents and forecast multi-agent failures before they happen. The differentiator was a single metric built on two signals — structural cycles in the inter-agent message graph, and the decay of novelty in embeddings. Before I ran anything, I pre-registered the success bar: AUC ≥ 0.80. I numbered every change and kept the signal code physically separated from the labels so I couldn't leak my way to a good number. Then I ran it on MAST-Data — UC Berkeley's dataset of 1,600+ real multi-agent traces across 7 frameworks[( Cemri et al., arXiv:2503.13657 )](url) Result: AUC ≈ 0.455. A coin flip. It got worse. The signal correlated with trace length at r ≈ 0.86 — it was mostly measuring how long a trace was, not whether it failed. Correcting for that dropped AUC to 0.42 and reversed the direction: successful traces actually showed more decay (p ≈ 0.013). The honest read: not disproven, but unvalidated. On this implementation, on this data — negative. So I shut it down. And I counted it as a win, because I got a fast, honest answer in weeks instead of building a dashboard on a metric that secretly measures string length. That experiment became the DNA of everything since: design the experiment that's allowed to kill the idea. The pivot: from predicting failure to cutting waste The intuition behind v1 — that you need structu
TL;DR: This is not a cryptographic construction. It is a pragmatic engineering compromise for applications where encrypted storage is required but approximate alphabetical ordering is still useful. I sort encrypted strings using an external index: the sum of weighted Unicode code points for the first N characters with exponential positional weights, followed by quantization. Monotonicity is preserved, but accuracy predictably degrades after the first few characters. Not a cryptographic scheme; some ordering information leaks by design. The problem Some time ago, while implementing a project, I ran into the problem of sorting encrypted data in a database. I’d like to share the solution. I won’t go into detail describing the entire application. I’ll just say that, according to the required architecture, almost all data in the database must be stored exclusively in encrypted form: usernames, file names, tags, comments, dates, and so on (with the exception of identifiers and some system fields). That is, the table structure should be open, but the contents should not be. The encryption is symmetric: the same key is used for both encryption and decryption. This means that without the encryption key, even with a full database dump an attacker should not obtain any original data. And this is where two problems immediately arose: searching by the data without fully decrypting it, and sorting encrypted data. The first problem, with some caveats, is solved fairly simply. To search encrypted data, it is enough to additionally store hashes of the original values you plan to search on. This allows exact-match lookups (for example, users by login or files by tag) without storing the original values in plaintext. Yes, this won’t allow pattern searches, but it’s quite acceptable for the project’s goals. But sorting encrypted data turned out to be significantly more difficult. The solution A quick search showed that the problem is far from new, but there are no standard approaches t
Few lines of code look more innocent than this: retry ( 3 ) It feels responsible. Professional. Resilient. After all, networks fail. Servers become unavailable. Databases occasionally time out. Retrying seems like the obvious solution. And sometimes it is. But after enough years building production systems, I've become convinced of something: Retry is one of the most dangerous keywords in software. Not because retries are bad. Because retries amplify everything. Good systems become more reliable. Bad systems become disasters. The problem is that many developers treat retries as a reliability feature when they're actually a distributed systems feature. And distributed systems are where simple ideas go to become complicated. Why Retries Exist Imagine: await fetch ( " /api/users " ); The request fails. Maybe: Network hiccup Temporary database issue Load balancer restart Service deployment The operation might succeed if attempted again. So we write: retry ( 3 ) Seems reasonable. And in many cases: It Works Which is why retries become popular. The Dangerous Assumption Most developers unconsciously assume: Failure = Operation Did Not Execute Unfortunately that's not always true. A request can: Execute Successfully ↓ Response Never Arrives From the client's perspective: Failure From the server's perspective: Success Now a retry becomes dangerous. The Double Payment Problem Imagine a payment service. await chargeCard ( order ); The card processor successfully charges: $100 The response is lost due to a network issue. Client sees: Request Failed and retries. await chargeCard ( order ); again. Now: Charge #1 = Success Charge #2 = Success The customer paid twice. Nobody wrote bad logic. The retry created the bug. The Email Storm Problem Consider: await sendWelcomeEmail ( user ); Email provider accepts the message. Response times out. Application retries. await sendWelcomeEmail ( user ); again. Customer receives: Welcome! Welcome! Welcome! Welcome! Support ticket created. Marke
I left a multi-agent refactor running overnight. By morning the model was gone, pulled out from under me by a government I don't even vote for, on the other side of an ocean. This isn't really a story about Anthropic. It's a story about who's actually holding the off-switch, and right now it probably isn't you. So here's how my morning went. I had a job running. Not a toy, a proper codebase-wide refactor that had been grinding away continuously for the best part of two days. Multi-agent setup, left to run overnight, the kind of long, messy, long-horizon task that every model before this one just fell over on. Claude Fable 5 was handling it like it was nothing. Anthropic's own launch notes talk about it compressing months of work into days, and honestly, on my own codebase, that wasn't marketing. It was just what was happening. Then I woke up. And the model was gone. Not rate-limited. Not having a wobble. Gone. The thing I'd built two days of momentum on simply did not exist any more. Turns out that on the 12th of June the US government issued an export-control directive telling Anthropic to cut off all access to Fable 5 and Mythos 5 for any foreign national. And because you can't exactly sort a global user base by passport in real time, that meant pulling it for everyone. Including me, sat in Tyrol, watching my overnight run go cold. Anthropic did the right things, for what it's worth. They complied fast, they said out loud that they disagreed, and they're fighting to get it back. About as well as a vendor can behave in that situation. (As I write this it's still down. Anthropic reckon it's a misunderstanding and they're trying to get it restored, so maybe by the time you read this it's back up. Doesn't change a single thing about the point I'm making.) And it made absolutely no difference to me. That, right there, is the whole point of this post. The offer was the trap Wind back a few days. Fable 5 dropped as the best model anyone had shipped, and the offer was lov
AWS recently announced CDK Mixins, a new AWS CDK feature that lets developers add reusable capabilities like security, monitoring, and configuration to AWS resources. Mixins work across different construct types, making infrastructure code more flexible and reusable. By Renato Losio
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