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ProgrammingDEV Community ·

Cheaper Alternatives to interviewing.io for Tech Interview Practice, Ranked by Budget

A DEV Community guide reviews alternatives to interviewing.io, whose live mock interviews start at $179 per session. It lists free peer-practice options such as Aced, a low-cost AI interviewer, and paid coaching through DesignGurus and IGotAnOffer. The author discloses building one of the listed tools, DevInterview.AI, and notes its limitations compared with human interviewers. The article recommends cheap, high-volume practice first, with one expert session shortly before a real onsite interview. All prices were stated as checked by the author on October 19, 2026.

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ProgrammingDEV Community ·

Deterministic Replay Lets AI Agents Time-Travel Through Runs to Debug Distributed Systems

AI agents now write code faster than engineers can review it, and conventional diff inspection struggles with distributed state machine bugs and timing race conditions. Platforms such as Antithesis expose deterministic time-travel APIs that let agents step back through historical system runs, branch interactive terminals, and check fixes against real execution failures. The approach carries costs, since running systems inside specialized hypervisors requires strict containerized constraints. Unguided agents that branch through time can also consume large amounts of compute unless platform teams enforce hard runtime budgets. The article argues that platform engineering is moving from passive code review toward execution-proven verification, with the open question being whether these methods scale as microservice architectures grow more complex.

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ProgrammingDEV Community ·

Open-source project lets a Safari agent control an iPhone via an ESP32 Bluetooth bridge

Developers have released iPhone Agent Harness, an MIT-licensed open-source project that lets users describe a phone task in Safari. A vision model inspects the screen while a nearby ESP32 board, connected over Bluetooth and Wi-Fi, supplies taps and keyboard input through AssistiveTouch. The demo shows the agent setting an alarm in the iPhone Clock app, though the authors note it is not a benchmark for arbitrary apps or long tasks. The setup requires iOS or iPadOS 27 or later, and firmware is installed through desktop Chrome or Edge. Users choose their own model provider, and a model can still misread the screen, so results must be checked on the phone.

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ProgrammingDEV Community ·

Why Quora Scraping Data Needs Careful Interpretation for Market Research

A Quora question scraper gathers only a visible sample of user content, so answer counts, upvotes, and author activity cannot be read directly as demand, sentiment, or expertise. Reliable collection depends on a clear data structure, pilot testing, full pagination, ID-based record linking, validation, and regular updates. Because users create topics inconsistently, a single keyword search captures only part of the discussion, so researchers should build a broader query matrix. Answer volume and popularity also reflect question wording, audience reach, author reputation, and list position rather than purely content quality. Researchers should therefore preserve context and cross-check any patterns against other data sources.

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ProgrammingDEV Community ·

Proprietary Assets Linked to Websites Holding Google Traffic Through 2026 Core Updates

A Zyppy analysis of roughly 400 websites found that proprietary assets were the third of five traits associated with sustained Google visibility. Published April 9, 2026, the study by Cyrus Shepard found that 92.9% of winning sites had such assets, versus 57.1% of losing sites. The research covered the previous 12 months, including the March 2026 core update, and used Ahrefs traffic data and Spearman correlations. The authors stress this is an association rather than proof that owned assets alone preserve traffic, and the other traits identified were offering a product or service, enabling task completion, tight topical focus, and strong branding.

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ProgrammingDEV Community ·

Parsing credit card statement PDFs: handling signs, detail lines and balance tie-outs

Extracting transactions from credit card statement PDFs is often harder in deciding what each row means than in locating the table. A key pitfall is that some issuers print payments without minus signs, so a parser trusting printed signs can misread a payment as a purchase and double the error. The recommended approach classifies each line by its section heading and kind before assigning a sign from the magnitude. Foreign-currency detail lines and year-to-date summaries must be excluded from the transaction output. Finally, the rows should be checked against the statement's printed previous and new balances, using exact decimal arithmetic, to confirm they reconcile to the cent.

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ProgrammingDEV Community ·

Batch image generation from prompt lists with a single FLUX API call

A DEV Community post explains how to generate many images at once from a list of text prompts, rather than creating them one at a time in a web playground. It outlines common use cases such as product catalogs, blog illustrations, placeholder game art, and ad variations. The author compares approaches including self-hosting FLUX or Stable Diffusion, calling per-image inference APIs directly, using big-model providers, and looping over single-image endpoints, noting the tradeoffs of each. The recommended method is one call to an Apify Actor that accepts the full prompt list, returns a URL, seed, and status per image, and needs no separate image-model API key. The post includes example JSON input and curl usage.

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ProgrammingDEV Community ·

DDIA Is Excellent Reading but Lacks Hands-On Practice, So a Companion Lab Was Built

The author describes Designing Data-Intensive Applications as the best distributed systems book they have read, but argues it offers no way to test understanding. Without exercises, answer keys, or interactive failure scenarios, readers struggle to apply concepts like linearizability or two-phase commit under pressure. To fill this gap, the author built a companion practice lab covering 14 chapters in English and Persian. The lab includes 89 interactive step-through diagrams, 302 worked examples, and 47 design exercises with full solutions. It is positioned as a practice resource alongside the book, not a replacement or production system.

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ProgrammingDEV Community ·

PrivateTools offers browser-based media tools that process files locally

PrivateTools is a collection of browser-based utilities for working with video, images, audio, and 3D assets. Users open a file, complete the task in the browser, and export the result without uploading media to a server. The toolkit includes an image sequence player for previewing renders and exporting them as video or GIF, plus a video editor for trimming, joining, cropping, and auto-generating subtitles locally. Other tools cover batch file conversion, camera RAW development, simple image editing, an SVG icon library, audio trimming, and a 3D model viewer. The developers note these are focused workspaces rather than a replacement for full production software, and performance depends on the user's hardware and browser.

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ProgrammingDEV Community ·

Proposed offline AI education app aims to keep students learning during disruptions

A developer has proposed EduVerse, an offline-first AI learning platform for students in Pakistan whose schooling is interrupted by conflict, protests, school closures, or internet shutdowns. The app would store curriculum content locally, letting students review lessons, ask questions to an offline AI tutor, and take interactive quizzes without connectivity. Teachers or schools could download learning packages in advance so instruction continues during disruptions. The concept begins with a planned working prototype for a single grade and subject, with later goals of scaling it as open-source software that runs on low-cost devices.

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ProgrammingDEV Community ·

Minimalist AI Agent Harness Built in 62 Lines of Bash

A DEV Community tutorial shows how to construct a minimal AI agent harness using only a Bash script. It starts with a single curl call to an LLM through OpenRouter, parsing the JSON response with jq. The author then explains that LLM calls are stateless, so a harness must supply conversation history. The next step turns the call into a chatbot by storing messages in a shell variable and looping over user input. The full source code is published on GitHub, with plans for later steps that add tool use for building a coding agent.

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ProgrammingDEV Community ·

Developer builds NXTO, a game backlog tracker that grew into a recommendation engine

A developer started a simple backlog tracker with playing, planned, and finished lists to stop losing track of games they wanted to play. Owning games across several platforms meant store recommendations missed much of their history, so they added recommendations based on everything played, using their own ratings. The project was shared online, drew signups, and moved to its own domain, nxto.app. Hosting costs are covered by a donation link and a price comparison feature that earns small commissions without raising prices for users. Since May the platform has reported 79 accounts, about 10,400 tracked games, and a search catalog of roughly 150,000 titles.

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ProgrammingHacker News ·

Europe's EV sales jump 70.3% in September, reaching 32.6% market share

Electric vehicle sales in Europe rose 70.3% in September compared with the same month a year earlier. Battery-electric vehicles accounted for 32.6% of total new car sales across the region. The figures point to accelerating adoption of electric cars among European buyers. The report is based on Reuters coverage of the latest regional sales data. The source article provides the full breakdown of the market trends behind the growth.

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ProgrammingHacker News ·

Inception Unveils Mercury 3, a Diffusion-Based LLM Claiming 1,000 Tokens per Second

Inception has introduced Mercury 3, a large language model built on diffusion techniques rather than the conventional autoregressive approach. The company reports that the model can generate output at roughly 1,000 tokens per second. The announcement was shared on Hacker News, where it drew 63 points and 18 comments from readers. The source material provides only limited detail beyond the headline claim, so specifics on benchmarks and methodology are not confirmed here.

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ProgrammingHacker News ·

Ukraine conducts first aerial drone evacuation of a wounded soldier

Ukrainian forces have reportedly carried out the first known evacuation of a wounded soldier from the front line using an aerial drone. The operation marks a new use of unmanned aircraft for battlefield casualty extraction. The source article is a Daily Mail report linked from Hacker News, and the article text available here contains only the link and discussion metadata, so further details such as the date, location, and the soldier's condition could not be confirmed.

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ProgrammingHacker News ·

Evidence (YC S21) Is Hiring Software Engineers

Evidence, a Y Combinator S21 company, has posted an opening for software engineers on its jobs page. The listing was shared on Hacker News, where it has so far drawn no points or comments. The source material contains few details beyond the hiring announcement itself, so specifics about roles, requirements, or compensation are not available. Interested applicants can find the posting at the company's jobs page linked from the item.

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ProgrammingDEV Community ·

Practical tcpdump and dig commands for troubleshooting TLS and DNS issues

A guide highlights practical command-line examples for tcpdump and dig that go beyond what standard man pages offer. The tcpdump examples cover filtering connection setup and teardown packets, extracting the SNI hostname from TLS ClientHello messages, and saving full packet captures for later analysis in Wireshark. The dig examples show how to display DNSSEC records in readable multiline format, produce YAML output for scripts, trace delegation from root servers, and query authoritative servers directly to bypass cached results. The author notes these commands are most useful for failing TLS handshakes, broken DNSSEC validation, machine-readable CI output, and resolving disagreements about DNS answers. The piece encourages readers to keep the relevant commands for their own stack and to share others they rely on.

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ProgrammingDEV Community ·

How Laravel Facades Route Cache::get() Calls Through the Service Container

Laravel's Cache::get() does not exist on the imported facade class; instead, the Facade base class uses PHP's __callStatic() to forward the call. The facade resolves a service container binding, here a CacheManager, and caches that lookup after the first request. The manager's own magic method then forwards the call to the default store named in configuration. Facades only work once the kernel's RegisterFacades bootstrapper has set the application, which is why calling them from a bare test throws an error. Real-time facades generate facade classes on demand through an autoloader, letting code call non-facade classes statically.

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ProgrammingDEV Community ·

Seven Knowledge Management Tools Compared Across Search, Governance, and Collaboration Needs

Knowledge management tends to fail when staff cannot locate current answers, identify owners, or link information to the work it supports. A good tool should simplify organizing and searching content while offering permissions, version history, and collaboration features. This guide evaluates seven platforms, including ONES.com, Microsoft SharePoint, Guru, GitBook, Document360, Slab, and Nuclino, against these requirements. The best fit depends on where knowledge originates, how strict governance needs to be, and whether documentation must tie directly into project activity. The article also recommends defining content owners and a review process for outdated material before adoption.

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ProgrammingDEV Community ·

Developer Launches No-Code Studio, an AI-Assisted Point-and-Click Game Engine

A developer has introduced No-Code Studio, an AI-driven engine for building point-and-click adventure games. The project aims to reduce the technical hurdles and boilerplate code that have traditionally made such games time-consuming to set up. Its visual framework is designed so creators can concentrate on storytelling, design, and puzzle mechanics while the AI-assisted environment handles much of the technical work. The core technology is described as fully developed and robust, and the product is currently in an early launch phase as a demo. The author has invited feedback and discussion from the game development and software architecture community.

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