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ProgrammingDEV Community ·

How to Grade AI Security Testing Courses Against MITRE ATLAS Coverage

MITRE ATLAS listed 16 tactics and 101 top-level techniques as of its October 1, 2026 sync, with 44 of those rated as realized against production AI systems. The article argues that course outlines are hard to compare, so it proposes matching each hands-on lab to specific ATLAS technique IDs instead of relying on topic lists. It distinguishes a topic a course mentions from a lab where students run an attack against a real target and measure the result. The method begins with asking providers for their lab list, including tools and targets, then tagging each lab and counting coverage, which takes about an hour per course. The author supplies a Python script that pulls the ATLAS data and reports tactic coverage and realized techniques left untested, noting that four sample labs cover only 7 of 16 tactics and 3 of the 44 realized techniques.

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ProgrammingDEV Community ·

KeptTools offers free browser-only developer tools that keep pasted data off servers

A developer built KeptTools, a free set of utilities for formatting JSON and SQL, decoding JWTs, encoding Base64, generating hashes, and more. The creator was motivated by concerns that typical online tools upload pasted content such as staging tokens, database dumps, or secrets. According to the author, processing happens locally in the browser, and the more sensitive pages include no analytics, ads, or third-party scripts. Users can verify this by checking the browser's Network tab for outgoing requests. The creator is seeking feedback on how clear the privacy approach is and which features might be missing.

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ProgrammingDEV Community ·

Hands-on test compares Higgsfield and Kyncept AI image outputs for one Tokyo poster prompt

A reviewer ran the same adapted Tokyo paper-cut poster prompt through Higgsfield and Kyncept, using two image jobs per product on their own free and paid accounts. All four resulting files measured 1376×768 pixels, and the reviewer judged content quality a tie at this small sample size. Higgsfield's PNG outputs carried a visible "HIGGSFIELD AI" watermark, while the inspected Kyncept JPEGs did not, and credit costs differed between the two services. Timing evidence was too incomplete to declare a speed winner. The author stresses this is two runs per service on a single prompt, not a blind or broad performance study.

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ProgrammingDEV Community ·

sping 1.7.1 adds diagnostic mode to investigate unreachable network targets

The open-source Rust network tool sping, a modern take on ping, has released version 1.7.1 with an experimental --diagnose mode. When a monitored target stops responding, the mode automatically runs extra checks, such as testing the alternate IP address family, probing TCP ports 443 and 80, running a traceroute, and reviewing DNS results. The author's aim is to report what was observed rather than claim a definitive root cause. The release also adds live detection of network context changes, such as switching from Ethernet to Wi-Fi or a VPN altering the default route, which helps with intermittent problems.

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ProgrammingDEV Community ·

Bounded Pexels Pagination Recovers Usable Images After Validation Failures

An automated image workflow can run into pages of Pexels results where candidates are already used or fail format checks such as MIME type or minimum dimensions. The described approach fetches a second results page only when the first yields no valid, unused asset and a next page exists, with a hard ceiling of two pages. Rejections are logged in sanitized categories covering content type, byte size, dimensions, or reuse, without storing raw URLs or headers. Tests mock invalid first-page responses to confirm that exactly one extra page is requested and that the two-download cap halts execution. The method is presented as a way to avoid unnecessary task deferrals while keeping API usage and throughput under control.

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ProgrammingDEV Community ·

Batch or Stream Processing: Choosing Based on Whether Your Data Ends

The core question in data system design is whether the data is bounded, meaning it has a defined end, or unbounded, meaning it keeps arriving indefinitely. Batch processing collects events over a window or volume threshold and handles them together, while stream processing responds to each event as it occurs. Bounded data lets batch jobs produce complete answers, whereas unbounded data pushes streams toward providing fresh results instead. The author suggests deciding per feature by asking how quickly an event loses its value, using a music app as an example: fraud detection needs streaming, artist payouts need batch accuracy, and trending charts often benefit from both. The article notes that many real systems combine both approaches, and promotes a video course covering related tools and concepts.

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ProgrammingDEV Community ·

Solo Developer Builds Receipt-Scanning PWA for French Freelancers

A developer launched ScanCompta, a progressive web app that lets French freelancers and small business owners scan receipts and manage expense reports from a phone or browser. The creator noted that French law requires receipts to be kept for ten years, and that a 2017 regulation permits a quality digital scan to legally replace the paper original. The app was designed around France-specific needs such as the four VAT rates, URSSAF thresholds, and the annually changing mileage allowance, which the developer found existing tools handled poorly. The app was built as a single web codebase to run on iOS, Android, and desktop without app store review or fees. The developer also focused on search visibility by creating content targeting specific French-language queries and implementing structured data markup.

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ProgrammingDEV Community ·

Five Common Mistakes That Undermine Reliability in Background Job Systems

Background jobs often appear to work fine until production failures expose weaknesses such as crashes, duplicate execution, stalled work, or overloaded dependencies. Immediate retries after failures can worsen outages, so exponential backoff with jitter is recommended to help systems recover. Because queues may redeliver messages after a worker crashes mid-task, jobs should be designed to be idempotent to avoid duplicate side effects. Teams should also monitor failure rates, queue depth, processing time, and the age of the oldest pending job to make silent failures visible. Finally, multi-step jobs need recoverable steps and a clear plan for jobs that exhaust retries, including dead-letter queues and safe replay.

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ProgrammingDEV Community ·

Developer Builds Free Fitness Calculator Suite Using Astro for Speed and SEO

A developer has released Free TDEE Calculator, a collection of fitness tools covering TDEE, BMR, macronutrients, and calorie deficit, built with the Astro framework and hosted on Cloudflare. The site is largely pre-rendered static HTML, with only small client-side scripts for input handling, which keeps pages fast and easy for search engines to read. All calculators draw on a shared formula module, using the Mifflin-St Jeor equation for BMR and an activity multiplier to derive TDEE. Each tool page is paired with a guide that explains the formulas, includes worked examples, and adds FAQ markup to support search rankings. The developer presents the project as an example of how static-first frameworks can deliver both strong SEO and interactive functionality.

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ProgrammingDEV Community ·

Higgsfield and Kyncept Produce Near-Identical Nano Banana Pro Images, but Pricing and Watermarks Differ

A reviewer ran the viral "1/7 scale figurine" prompt through Nano Banana Pro on both Higgsfield and Kyncept, generating five images in total. The image quality and prompt adherence were judged a tie, since both platforms use the same underlying model. Higgsfield charged 2 credits per image compared with Kyncept's 1, and its free PNG files carried a visible watermark. Higgsfield was faster, taking about 25 seconds per image versus 64 to 92 seconds on Kyncept. The reviewer concluded that Kyncept offered better value for high-volume image work.

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ProgrammingHacker News ·

Ukraine says drone was used to evacuate a wounded soldier from the front line

Ukrainian officials have claimed the first instance of a wounded soldier being evacuated from the frontline by drone. The operation reportedly used a hexacopter, a multi-rotor drone with six propellers. The report was published by NBC News and circulated widely online through Hacker News. The source material provided here contains only the article link and metadata, so further details such as exact date, location, and the soldier's condition could not be verified.

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ProgrammingHacker News ·

CERN and Mistral Partner to Speed Up AI Use in Scientific Research

CERN, the European particle physics laboratory, has announced a partnership with the AI company Mistral. The collaboration aims to accelerate the application of artificial intelligence across scientific research. The source material available provides only the headline and a link to CERN's announcement, so specific details of the agreement's scope, funding, and timeline are not confirmed here. The news surfaced on Hacker News, where it drew modest early attention.

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ProgrammingHacker News ·

Essay argues code is now becoming malleable like clay

A short essay titled "Code is clay now" was shared on Hacker News, linking to a post on albertodenia.com. The piece appears to explore how software code is becoming easier to shape and reshape, comparing it to clay. The Hacker News submission has received 6 points and 1 comment. The full article text was not available, so the summary is limited to the title, link, and engagement metrics.

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ProgrammingHacker News ·

Netflix Details Ontology-Driven Observability Using an End-to-End Knowledge Graph

Netflix has published a technical blog post describing its approach to observability built on an ontology-driven knowledge graph. The system is designed to model relationships across its infrastructure so engineers can understand how services and components connect. The article covers the framework at Netflix's scale, though the source text provided here contains only the link and metadata rather than the full write-up. Readers seeking implementation specifics or technical details will need to consult the original post on Netflix's tech blog.

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ProgrammingHacker News ·

Benjamin Congdon Blog Post Explores Agentic Monitoring

A blog post by Benjamin Congdon, titled 'Agentic Monitoring', was shared on Hacker News. The post is hosted on his personal blog and was dated October 19, 2026. The Hacker News submission has received 4 points and no comments at the time of this report. The available source material provides only the title, URL, and engagement metrics, so the post's specific arguments cannot be summarized from this information.

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ProgrammingDEV Community ·

Hint Tutor gives offline Python bug hints without revealing the fix

Hint Tutor is an open-source tool for introductory Python courses that returns hints pointing to a student's bug without supplying the corrected code. It runs fully offline on a 3-billion-parameter model through Ollama, and unit tests decide first whether the code is wrong, so the model is only called to explain failing tests. A three-stage pipeline localizes the faulty line, drafts a short hint ending in a question, and checks every draft against the reference solution to block code or revealing tokens, falling back to a generic template after three failed attempts. On a 50-case benchmark, the system identified the exact faulty line 60% of the time and within one line 74% of the time, though it matched bug categories only 42% of the time. The author notes that testing was largely synthetic, that the guard does not catch English paraphrases of the fix, and that the tool only handles single-file scripts under 150 lines without input.

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ProgrammingDEV Community ·

Mounting home NAS and cloud WebDAV shares as Windows drive letters with ScsDriver

A self-hoster running TrueNAS Scale on a home NAS, alongside Nextcloud and several WebDAV sources, describes using ScsDriver to mount them as Windows drive letters. The tool, priced at $9.99 per year, supports WebDAV, Nextcloud, Aliyun, Google Drive and OneDrive, letting files appear in File Explorer like local volumes. The author reports a setup taking about 30 minutes, though the software is Windows-only, requires an account login, and is slow when first listing very large directories. The trial extends through a referral mechanism, which the author found pleasant and which ultimately led to a paid subscription.

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ProgrammingDEV Community ·

Slow Page Loads: Diagnosing Whether the API or Frontend Is the Bottleneck

A page can feel slow through long spinners, delayed product cards, or lag after clicks, and the first instinct of optimizing the frontend may be misdirected. The article recommends checking Chrome DevTools' Network tab to find the longest requests and examining their status codes, timings, sizes, and initiators before changing code. It notes that bottlenecks may lie in the API, in chained requests, or in frontend processing after a fast server response. A code example shows how sequential awaited fetch calls can be run concurrently with Promise.all when they are independent, and warns that fetch does not reject on HTTP errors so response.ok should be checked. The piece also advises distinguishing server latency from frontend rendering problems and recommends clear loading and error states, with caution around automatic retries of non-idempotent operations.

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ProgrammingDEV Community ·

Quotient Filters, Part 9: How Values Are Removed

This installment of the Quotient Filter series explains how to delete values from the structure. The author notes that removal mirrors the addition logic, applied in reverse. Several cases are walked through: removing a value at the end of a run, removing a sole value from the middle of a cluster, and removing a value from the middle of a run. In each case, the filter first confirms the value exists, then clears its remainder and shifts subsequent entries backward while adjusting metadata bits. A helper function, clusterRunQuotients, is introduced to list the home slots of runs within a cluster.

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ProgrammingDEV Community ·

London Tourist Map: free interactive guide to 400+ sights and 17 day trips

A free, no-signup web app called London Tourist Map plots more than 400 London places and 17 day trips on one interactive map, including 38 hand-picked hidden gems. Each place card shows opening status, ticket prices, typical visit length, nearby stations with walking times, photos, ratings, accessibility details and a Google Maps directions link. Users can filter by mood or category, sort results, and save places to a personal trip list stored in their browser. Themed maps and curated lists cover subjects such as theatres, stadiums, museums and Harry Potter filming locations, and the site includes a hotel price layer. The creator says affiliate links for tickets, tours and hotels help fund the free service, and the app is built with Astro and MapLibre using OpenStreetMap data.

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