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ProgrammingDEV Community ·

Developer outlines challenges of maintaining a growing web tool directory

The creator of the Be Good Tool directory details the engineering challenges of keeping a utility site usable as its catalogue expands. They built the homepage in Vue, focusing on maintaining synchronized navigation, search, metadata, and layout without duplicating data. The solution uses separate composable functions for different data sources to manage server-side and client-side rendering consistently. The developer also explains design choices for search, navigation links, and structured data to ensure clarity and performance.

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ProgrammingDEV Community ·

Cisco CCNA certification retains value in 2026, adapts to modern networking needs

The Cisco CCNA certification remains a relevant entry-level credential for networking professionals despite industry shifts toward cloud infrastructure. Cisco consolidated multiple specialized CCNA tracks into a single exam in 2020 to reflect broader skill requirements. The updated exam now includes automation topics like Python scripting and REST APIs alongside traditional networking fundamentals. It serves as a foundational step for various Cisco technology specializations. The certification is recommended for specific career paths but requires evaluating its return on investment given study time commitments.

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ProgrammingDEV Community ·

Failed file hash check does not necessarily indicate tampering, expert explains

ProofLedger founder explains that a failed timestamp verification only indicates a file's hash doesn't match an anchored record, not necessarily that content was altered. Common tools like gzip, tar, and Git can modify file bytes without changing content, such as by adding timestamps or adjusting line endings. The service hashes raw bytes without interpreting file content, meaning identical content can produce different hashes across systems. A successful verification provides strong evidence of unchanged bytes, but a failed check requires users to ensure their file generation process is reproducible.

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ProgrammingDEV Community ·

Smartlead vs Instantly: Cold Email Tool Comparison Based on Team Needs

An analysis compares two popular cold email platforms, Smartlead and Instantly. The key difference lies in their intended audience: Instantly is geared towards in-house teams needing built-in lead databases and light CRM features. Smartlead is designed for agencies requiring separate client workspaces, white-label dashboards, and strong API control. Their mid-tier plan prices are very close, with Smartlead Pro at $94 and Instantly Hypergrowth at $97 per month. The article advises businesses to choose based on their specific operational workflows and hidden costs like add-ons.

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ProgrammingDEV Community ·

Developer creates four-question filter to evaluate GitHub repositories more effectively

A software developer has implemented a personal four-question filter to critically assess which GitHub repositories they add to their workflow. The system was developed after they realized starring repositories was not a useful way to determine if a tool belonged in their actual development stack. The filter helps distinguish between genuine tools and reference materials, and identifies functional redundancy with existing software. This process aims to reduce maintenance overhead and prevent clutter from unused or duplicate tools.

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ProgrammingDEV Community ·

Playwright's guide to fixing flaky tests: 8 common causes and solutions

Playwright defines a flaky test as one that fails and then passes on a retry without any code change. The article outlines eight frequent reasons for such unreliable tests, such as using hard-coded timeouts or reading element states before they are ready. It advises against simply using retries, which mask the problem, and instead recommends specific fixes from the Playwright documentation. These solutions include using assertions that wait for conditions and employing new features like test locks and random test shuffling. The goal is to help developers identify root causes and implement stable fixes.

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ProgrammingDEV Community ·

Mac scanner delay traced to inefficient app polling process

A ScanSnap iX2500 scanner experienced 14-second delays before scanning due to inefficient software behavior. The scanner's resident background process, SshResident, consumed excessive CPU during startup checks. Investigation revealed the process repeatedly polled macOS LaunchServices to check helper app status. This polling scanned all running applications instead of targeting the specific needed process, causing delays proportional to system load.

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ProgrammingDEV Community ·

Security audit finds high-risk governance vulnerabilities in ether.fi's $4.7B staking protocol

A security review of the ether.fi Stake protocol identified multiple high-severity governance vulnerabilities. The audit, conducted by a DeFi security firm and dated October 9, 2026, examined the governance attack surface of the $4.7 billion staking service. It found critical issues, including the potential for unauthorized contract upgrades and flash-loan voting attacks. The review concluded the governance layer presents significant risks, scoring an overall 8 out of 10 for high risk.

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ProgrammingDEV Community ·

Developer bypasses zip file storage constraint with selective HTTP downloads

A developer faced a common storage issue where they lacked space for both a large zip file and its extracted contents. They devised a method using HTTP Range requests to download only a zip file's central directory, which lists its contents, without saving the zip itself. This allows users to selectively download and extract specific files directly, saving significant disk space when only parts of an archive are needed. The developer implemented this solution as a command-line tool and later as a Chrome extension with a native helper program. However, the technique does not work on servers like GitHub that do not support HTTP Range requests for zip downloads.

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ProgrammingHacker News ·

Study finds exercise improves survival rates for cancer patients

A study published in the New England Journal of Medicine has found that regular exercise is linked to increased survival rates in cancer patients. The research provides evidence that physical activity can improve patient outcomes following a cancer diagnosis. The findings were discussed on the Hacker News platform, generating community interest. This adds to the growing body of evidence supporting the role of lifestyle factors in cancer care.

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ProgrammingHacker News ·

Meadows language enables creation and simulation of stock-and-flow diagrams

A developer has created Meadows, a small programming language for designing stock-and-flow diagrams. These diagrams are used to model dynamic systems, often in economics or ecology. The language allows users to specify systems with stocks and flows, then simulate their behavior over time. The project was recently shared on the Hacker News platform, where it garnered community interest.

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ProgrammingHacker News ·

Iranian campaign used ChatGPT to place fake articles in US news outlets

A campaign linked to Iran used AI to generate articles and placed them in legitimate U.S. news publications. The operation relied on ChatGPT to create deceptive content, which was then submitted through standard channels. A report by The Washington Post detailed the campaign, which occurred recently after the tool became widely available. The goal of the operation was to spread propaganda and influence public discourse.

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ProgrammingHacker News ·

Hetzner details history and architecture of its cloud networking stack

German cloud provider Hetzner published a technical blog post explaining the evolution and design of its cloud network infrastructure. The article provides a historical overview alongside a detailed technical breakdown of the current network stack's architecture. This information was shared on the Hacker News forum, where it garnered community attention. The post aims to offer transparency and insight into the company's internal networking technology.

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ProgrammingDEV Community ·

Guide details Zenn-GitHub integration steps and two common pitfalls

A developer explains the correct steps to connect the Japanese tech blogging platform Zenn to a GitHub repository. The process must be initiated from Zenn's dashboard, not by installing the app from GitHub Marketplace first. Only commits pushed after the connection is established trigger deploys; existing articles require a new, even empty, commit to appear. The integration allows automatic publishing of Markdown files from a private or public repository, providing full Git history for articles.

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ProgrammingDEV Community ·

How browsers resolve conflicts between conflicting CSS declarations

The CSS cascade is the set of rules browsers use to determine which style applies when multiple declarations conflict. It prioritizes styles based on four factors: origin, importance, specificity, and source order. This process explains why a seemingly straightforward style rule may not take effect as expected. Understanding these factors, including how preprocessors like SCSS can affect them, is crucial for debugging CSS issues.

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ProgrammingDEV Community ·

Developer proposes 'receipt card' method to validate CLI projects before merging

A developer argues that a simple command-line interface can appear deceptively complete after a single successful test run. They propose a 'receipt card' system, a set of text files detailing a project's goal, budget, and rollback plan, to act as a gate before code is promoted from a scratch branch. This method is designed to provide a clear, automated checkpoint to prevent unfinished or over-scoped work from being merged. The article was prepared as part of an outreach effort for MonkeyCode, which offers free tools for drafting and testing such projects.

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ProgrammingDEV Community ·

New AWS Lambda MicroVM security controls released with hands-on labs

Stave has added 16 built-in security controls for AWS Lambda MicroVMs to its catalog. These controls cover network, identity, IAM, supply chain, runtime, and snapshot surfaces. A unique graph-reachability check identifies risks that per-resource scanners cannot detect. The release includes eight self-contained labs demonstrating detection and remediation of misconfigurations. These tools help verify security before deploying agents into MicroVM environments.

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ProgrammingDEV Community ·

Developer builds desktop image editor in five weeks using Claude Code AI assistant

A developer created Scumble, a desktop image editing application, over a five-week development period starting September 4. The application originated as a ComfyUI custom node before becoming a standalone desktop app available on the Microsoft Store. Claude Code, an AI coding assistant, wrote most of the application's code while the developer focused on project direction and testing. The editor handles high-resolution images up to 15,000 pixels without freezing and integrates with various AI image generation services. The developer documented their collaborative workflow with the AI system, including specific development practices and technical challenges encountered.

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