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ProgrammingDEV Community ·

ELO Seeks Mid-to-Senior React Frontend Developer for Remote Role

ELO (Effortless Order) is recruiting a React frontend developer for a remote position open to candidates worldwide. The company is building a digital commerce ecosystem intended to link merchants and consumers more directly, starting with online food ordering. The role involves building and maintaining responsive web interfaces, and experience with TypeScript, Next.js, or other modern React frameworks is preferred. Employment may be full-time or contract, with the level flexible for the right mid-level or senior candidate. Applicants are asked to submit a CV or LinkedIn profile, project links, a description of their React experience, location, availability, and expected pay.

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ProgrammingDEV Community ·

x402 Protocol Lets AI Agents Pay for Web APIs Using Micro-Settlements on Base

Autonomous AI agents struggle to pay for paid APIs because they cannot hold conventional bank accounts, and card processing minimums make tiny per-request charges uneconomical. The x402 protocol addresses this by reviving the long-dormant HTTP 402 Payment Required status code and pairing it with USDC settlement on the Base Layer 2 network, EIP-712 signatures, and HTTP headers. In the flow, a server responds to an agent's request with a 402 challenge specifying the price and payment details, and the agent pays on-chain and retries with a payment proof attached. The article includes a minimal Python client example and argues that subscription-based SaaS models suit human usage poorly compared with bursty agent workloads that require no account provisioning or card details.

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ProgrammingDEV Community ·

OBINexus Lays Out 12-Week Plan to Build OBI Robotics Prototype and Reasoning System

OBINexus Computing has published a 12-week engineering roadmap aimed at turning OBI Robotics from a concept into a testable physical prototype. The plan prioritizes mechanical design first, with CAD assemblies, load calculations and electrical and wiring work, before building intelligence around the hardware's real constraints. Alongside the robot, the Ontological Bayesian Intelligence (OBI) reasoning system is to be developed separately and measured on its own terms, with C/C++ modules and automated tests. The roadmap keeps the physical control loop independent of the AI layer, and it starts with a simple robot base and a small, interpretable Bayesian model rather than a large language model. The authors state that the deliverable is a validated prototype and integration-ready architecture, not a finished autonomous robot.

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ProgrammingDEV Community ·

LLM Wiki Emerges as Simpler Alternative to GraphRAG for Growing Knowledge Bases

A developer on DEV Community compares GraphRAG and LLM Wiki approaches for building LLM-based knowledge bases that keep growing. Both use an LLM to distill raw data, but GraphRAG structures knowledge as entities, relations, and communities, while LLM Wiki organizes it into directories, index pages, and linked documents. The author notes that both share problems such as inaccurate summaries, stale information, lost sources, and difficulty of evaluation. The piece traces the progression from vector RAG in 2023 through GraphRAG, LightRAG, LazyGraphRAG, and the 2026 Relink paper. The author concludes that an LLM Wiki is the better starting point for those building a small knowledge base.

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ProgrammingDEV Community ·

Monitoring Competitor WooCommerce Catalogs for Price and Stock Changes

A guide explains how sellers can track a competitor's WooCommerce store without logins or plugins, since catalog data like prices, sale prices, SKUs and stock is publicly visible. The recommended method takes scheduled snapshots of the catalog and reports only differences such as new, removed, repriced or restocked products to tools like Slack, email or Sheets. The author cites checks of three public stores on October 20, 2026, finding 13–36% of products out of stock and 1–15% on sale. The article also estimates that a daily check of a 1,000-product competitor with 10 changes costs about $0.25 per run using the author's monitoring actor. The piece walks through setup options including Zapier, Make, built-in Apify integrations and Python, and discloses that the author built the actor it describes.

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ProgrammingDEV Community ·

ContextKeeper: A Chrome Extension That Saves Browser Tabs into Restorable Workspaces

The developer built ContextKeeper, a Chrome extension designed to stop people from accumulating dozens of open browser tabs across different tasks. Users can save eligible tabs from a window into named workspaces, add an optional note, and reopen them later when they resume that work. Workspace data is stored locally in the browser using chrome.storage.local, with no account or cloud sync required, and users can export a JSON backup. The developer cautions that exported backups may contain saved URLs and notes, and that local storage is not encryption. The author is seeking feedback from the developer community on how people manage tabs across multiple projects.

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ProgrammingDEV Community ·

Developer builds offline merit calculator covering 25+ Pakistani universities

A developer created Merit Calculator to help Pakistani students estimate their admission merit across many universities. Each university combines Matric, Intermediate and entry test marks using different weightings, and some apply special rules, making manual calculation error-prone. The app stores every university's formula in a single data source that powers a web app, SEO pages and an Android build. It runs without a backend on free hosting, works offline on low-end phones, and states plainly when a university has not published its formula. The project's design shows how a simple weights-based calculator was extended into a small formula engine to handle these special cases.

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ProgrammingDEV Community ·

Two Bash Parameter Expansion Quirks That Commonly Cause Script Failures

A sysadmin describes two bash behaviors that often pass code review yet lead to intermittent production failures. The first concerns ${var:-default} versus ${var-default}: the colon form substitutes the default for both unset and empty variables, while the form without the colon only does so when the variable is unset. The second contrasts [[ -v var ]], which tests whether a variable is declared, with [[ -n $var ]], which tests for a non-empty value, so a declared but empty variable is detected only by the former. The author notes that -v correctly identifies flags passed as empty strings where -n misses them. The piece recommends the colon-default form and the -v test for defensive scripting that behaves consistently across bash versions.

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ProgrammingDEV Community ·

Developer Builds iPhone Apps Without a Mac Using Cloud Build Services

A no-code builder who owns no Mac explains how they ship iOS apps entirely from an iPhone, which matters because Apple requires macOS and Xcode for App Store submissions. Their GitHub Actions Mac minutes were nearly exhausted, and buying a used Mac mini did not fit their budget rule of funding gear from project earnings. Instead, they built a simple iPhone interface that triggers cloud Mac builds through Codemagic and Apple's Xcode Cloud, both available at little or no extra cost. The first three build attempts failed at the same step, where the App Store Connect API key was written out empty. A diagnostic revealed that Codemagic passes a reference token rather than the key itself, which the build scripts must resolve.

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ProgrammingDEV Community ·

StepFun Releases Open Weights for Step 5 Preview, a 600B-Parameter MoE Model

StepFun has published the open weights of Step 5 Preview, its flagship foundation model aimed at long-running agentic orchestration and multi-hop analytical tasks. The model uses a sparse mixture-of-experts design with 600 billion total parameters, activating about 27 billion per token, and supports a context window of up to 1 million tokens. Its architecture alternates sliding-window and global attention layers across 92 layers, which keeps memory use manageable for long contexts. Released in BF16, FP8 and NVFP4 formats on Hugging Face and ModelScope, the weights let companies run the model on their own infrastructure instead of relying on closed APIs. The developers say the NVFP4 checkpoint fits on four Hopper or Blackwell accelerators at roughly 340 GB of VRAM and delivers over 110 tokens per second.

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ProgrammingDEV Community ·

Nothing OS 5.0 Open Beta 1 OTA Shared for Nothing Phone (2a) Users

A DEV Community author shared details about the Nothing OS 5.0 Open Beta 1 over-the-air package for the Nothing Phone (2a) on Reddit. The post aimed to make the information easier for other users to find and discuss. The author stressed verifying that the package matches the exact device model and software version before installing. Users were also advised to back up their data and avoid packages whose authenticity or compatibility cannot be confirmed. The article is presented as a record of community contribution rather than a guarantee of safety or suitability.

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ProgrammingDEV Community ·

Kyutai lança REKI, modelo VLA de 2,4 bi parâmetros com memória de curto prazo para robótica

O laboratório francês Kyutai, em parceria com o Inria e a École des Ponts, apresentou o REKI, um modelo de visão-linguagem-ação voltado à robótica física com 2,4 bilhões de parâmetros. A principal inovação é o uso de 32 tokens de registradores aprendidos, que comprimem cerca de 3 segundos de observação em memória temporal sem reprocessar quadros passados. Segundo os resultados divulgados, o modelo reduziu oscilações patológicas de braços robóticos no benchmark RoboTwin e obteve a melhor pontuação geral no LIBERO-Plus, com 90,4% de sucesso. Os pesos abertos já estão disponíveis no Hugging Face, e o pré-treinamento usou apenas dados públicos, sem frotas proprietárias de robôs.

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ProgrammingHacker News ·

Omnara Releases Open-Source API for Durable, Cloud-Hosted AI Agents

Omnara, a startup previously known for a remote-control app for Claude Code and Codex, has released an open-source API for running durable AI agents. Developers create agents through API calls, and the platform handles the agent loop, sandboxed command execution, secrets, permissions, and access control. Agent state is stored in Postgres, allowing agents to survive restarts and incur no cost while idle, and clients can message agents and stream their events. The company positions the project as a self-hostable alternative to hosted offerings from Anthropic and OpenAI, and says agents can connect to multiple machines, such as a laptop and a cloud sandbox, through an outbound-only daemon. The full codebase is available on GitHub and can be run on a single machine with Docker Compose.

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ProgrammingHacker News ·

Researchers identify 'plasticoral' pollution: coral rubble fused with plastic on shorelines

Scientists have documented a new form of plastic pollution they call 'plasticorals', in which plastic becomes fused with coral rubble. The material has been found on shores that are already vulnerable because of coral reef damage. The findings were reported by the Okinawa Institute of Science and Technology (OIST), according to a link to its news center. The source material provided is limited to a link and a brief Hacker News listing, so details on the study's location, timing and methods could not be verified.

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ProgrammingHacker News ·

Author Shares Lessons From Six Months of Deliberately Being Naive

A blog post describes a six-month experiment in which the author intentionally adopted a naive or uninformed stance. The piece, published on wvez.org, reflects on what the author learned from the approach. The original source provides only the headline and link, so specific details of the experiment and its findings are not confirmed here. The story gained 16 points and 3 comments on Hacker News.

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ProgrammingHacker News ·

Most MCUs Likely Unaffected by eMudhra Intermediate CA Compromise

A blog post examines the eMudhra intermediate certificate authority compromise and its potential impact on microcontroller units (MCUs). The author argues that most MCUs are likely not affected, since they typically do not rely on the public web PKI trust chain that the compromised intermediate CA would affect. The article is discussed on Hacker News, where it received 9 points and 2 comments. The analysis focuses on how certificate trust is handled in embedded devices rather than on the details of the breach itself.

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ProgrammingHacker News ·

Trail of Bits Warns AI Coding Agents May Make Unintended Changes Beyond Bug Fixes

A Trail of Bits blog post asks whether AI coding agents that fix bugs also alter other parts of a codebase without being asked. The article, published October 21, 2026, raises concerns about reviewing the full scope of changes an agent makes. The source material available here is limited to the post's link and Hacker News metadata, so the specific examples and recommendations in the article could not be verified. The discussion drew a small amount of attention on Hacker News, with 8 points and one comment at the time of capture.

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ProgrammingDEV Community ·

Login Alone Isn't Enough: Per-Operation Authorization and Recovery for AI Agent Tools

A valid login only establishes identity, but an agent may keep acting after a user has lost a permission, so each tool call must be checked on its own. This article presents an architecture exercise rather than a report of a completed AWS deployment, and its test scenarios are proposals. It distinguishes authentication, authorization for a specific operation and resource, and approval tied to a concrete proposed change. It compares AWS API Gateway IAM invocation with Lambda authorizers, and argues that shared MCP routes need fine-grained checks enforced by the executor. It also notes that policy changes and cached authorization results can delay revocation, and that interrupted sensitive operations require durable evidence before any replay.

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ProgrammingDEV Community ·

Automating Stock Uploads: Generated Metadata CSVs, Duplicate Guards, and Product Packaging

A creator lost a morning of uploads after a wrong column order in a Vecteezy CSV caused an entire 40-asset batch to fail validation before review. Stock platforms each require different CSV header layouts, so the creator wrote a script that generates the exact format for each platform rather than typing spreadsheets by hand. To prevent duplicate uploads caused by rerunning batch scripts, they built a standard-library-only ledger tool that skips assets already marked as done. They also created scripts to convert Markdown notes into styled PDFs and to package folders into zips with cover and thumbnail images for sale. Their central lesson is that automation amplifies existing habits, so safeguards should be built into the tools themselves.

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