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ProgrammingHacker News ·

One Hash Bloom Filters: New Approach to Bloom Filter Design Shared on Hacker News

A technical article titled 'One Hash Bloom Filters' was posted on Hacker News, linking to a page at calabro.io. The post has gained 4 points and no comments at the time of listing. The linked material appears to describe a variant of the Bloom filter, a probabilistic data structure used for set membership testing. The available source text contains only the link and engagement metadata, so the specific technical details could not be verified from this item alone.

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ProgrammingDEV Community ·

Study Exposes How Some Colleges Inflate Job Placement Statistics

An article on DEV Community argues that many higher education institutions use misleading or fabricated job placement figures to attract students and parents. It says a single high offer can skew average salary claims, making them unrepresentative of most graduates. The piece also describes practices such as claiming credit for offers students secured themselves, counting letters of intent that may never materialise, and classing unpaid internships as placements. It further alleges that some colleges require extra fees for placement training and place engineering graduates in low-skill roles while still recording them as placed. The author contends that the absence of independent audits lets institutions report unverified figures to ranking agencies.

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ProgrammingHacker News ·

Reported leak of around half a million internal documents from Germany's AfD party

A Hacker News post links to a site, hexane.cc, reporting that roughly half a million internal documents from Germany's far-right Alternative for Germany (AfD) party have been leaked. The linked page was not available for review, so the source, scope, and contents of the documents could not be independently verified. Further details about who obtained the material and what it contains should be checked against the original reporting before publication.

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ProgrammingDEV Community ·

Self-improving agent's apparent gains were noise; author publishes null result

The author built ALMA, a governance layer for self-improving agents that proposes changes to itself under a frozen validator and pre-registered experiments. Re-measuring with larger selection panels and a recalibrated threshold showed the apparent improvements were selected noise, reversing 7 of 7 times on held-out data. Re-testing all 58 in-scope configurations found none beat the base, so the meta-loop adopted zero changes and the search was closed. The author chose to publish this as a certified null result rather than keep tuning, and plans future reviewer runs on ReviewBench with a manifest for each run to prevent cherry-picked scores.

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ProgrammingDEV Community ·

Team splits AI coding work across four models and logs what each catches

A developer team stopped relying on a single model after its subscriptions kept hitting usage limits and the model was checking its own work. Claude now plans and reviews, Grok attacks Claude's drafts, Codex builds larger components, and a router called Tīrtha handles routine building. A ledger from Sep 25 to Oct 17 shows Grok raised 519 findings, of which 309 held up on manual re-check and 207 were absent from Claude's draft, while Codex raised 50 findings with 39 holding up. The team reports Grok reviews cost a median of about two cents each, though Codex runs are token-heavy and hit usage limits seven times in the same period. The authors acknowledge that Tīrtha's track record is only a few weeks old and that the ledger was partly graded by Claude itself, so the benefits remain unproven.

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ProgrammingDEV Community ·

Detecting Website Tech Stacks for 500 Sites in One Run for About $2.50

A developer describes using an Apify actor called Website Tech Stack Detector to identify the technologies behind hundreds of websites, such as CMS platforms, ecommerce systems, and analytics tools. The tool sends one plain HTTP request per URL without running a browser or JavaScript, checking response headers, script sources, HTML markers, and cookie names. It recognises about 60 technologies and includes the evidence for each detection, and it respects robots.txt by default. Pricing is $0.005 per successfully fetched URL, so a 500-site batch costs roughly $2.50, with failed requests not charged. The author notes the approach is coarse, since missing detections do not prove a technology is absent and client-side rendered tools can be missed.

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ProgrammingDEV Community ·

MedReachAI Team Closes Usability Testing and Readies Production Polish

The MedReachAI capstone team has closed its usability testing window after collecting testing kits and completing think-aloud sessions. They are now compiling survey results and synthesizing feedback into a UX research report to guide final interface changes. On the backend, the team fixed a Firebase Auth emulator issue, connected the FastAPI server to the React frontend, and plans to merge NLP feature branches after a final code review. Engineers are also removing placeholder data, wiring up unfinished buttons, and overhauling authentication state with dynamic components and logout functionality. The team says these updates aim to produce a production-ready application before graduation next month.

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ProgrammingDEV Community ·

Disconnect Handling: Using a 30-Second Host Lease Before Reassigning a Room Host

The article argues that a player's disconnect should begin a 30-second host lease rather than immediately promoting another participant. During that window, the same player can rejoin with a fresh scoped token and reclaim the room. If the lease expires, a single compare-and-swap operation elects the next eligible participant, and clients are then synchronized from an ordered event log. The author stresses that WebRTC connection-state changes are noisy signals that cannot prove a user has abandoned a room, so a shared transactional store should own the lease, membership generation, and event sequence. Retries are handled through request IDs for idempotency, while generation numbers stop stale sockets from reclaiming newer room instances.

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ProgrammingDEV Community ·

Why Payment APIs Double-Charge Customers and How Idempotency Keys Prevent It

A user who clicks an upgrade button twice during a network lag can trigger two separate card charges, creating duplicate ledger entries and corrupting billing state. The article explains that distributed web networks are unreliable, so a request can succeed on the server while the client sees a timeout and retries. It uses the Two Generals' Problem to illustrate why retries are unavoidable and cannot be treated as rare edge cases. Because HTTP POST is non-idempotent by design, repeated payment requests spawn new charges, unlike GET requests that can be safely repeated. The piece introduces idempotency keys as a way to bring retry safety to payment operations.

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ProgrammingDEV Community ·

Quantum Code-Breaking Could Undermine AI Systems, Article Warns

A DEV Community article argues that current AI infrastructure depends heavily on classical asymmetric cryptography, which a fault-tolerant quantum computer running Shor's Algorithm could break. The author contends that this threat, called Q-Day, would hit model weight storage, dataset signing, agent API authentication, and encrypted inference traffic. Adversaries could also exploit harvest-now-decrypt-later tactics to expose previously recorded prompts and fine-tuning data. The piece further claims that forged firmware signatures could compromise GPU cluster hardware. The article presents these as hypothetical risks rather than current events.

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ProgrammingDEV Community ·

Seven AI browser agents compared: Browy, Browser Use, Skyvern, Nanobrowser and more

A developer guide compares seven AI agents that can read web pages and click through them on a user's behalf. It covers where each runs, whose browser and logins it uses, and how the underlying model is paid for. Browy, the author's own tool, works inside the user's existing Chrome, Edge or Brave tabs and uses a GitHub Copilot plan. Other options include Browser Use and Skyvern for scripted or large-scale jobs, Nanobrowser for flexible model choice, and Stagehand for developers building pipelines. The article notes which tools are open source and recommends each based on use case.

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ProgrammingDEV Community ·

Seedbox panel announcement feed swapped for billing app's own feed after upgrade

Pulsed Media's autonomous AI sysadmin, Väinämöinen, runs the company's seedbox web panel, which displays the four newest announcements fetched as RSS from the billing portal. After the WHMCS upgrade from 8.x to 9.0 on 2 September 2026, the application's own feed replaced the company's generated feed at the same path. The change was visible in screenshots taken during the day, but the operator initially dismissed the test failure as a false alarm. The episode highlights how a format-only check can miss a content-level substitution of a shared resource path.

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ProgrammingDEV Community ·

Developers urged to start post-quantum cryptography migration now, as NIST finalizes PQC standards

NIST has finalized its first post-quantum cryptography standards, which replace classical public-key algorithms with lattice-based and hash-based alternatives. The guide argues that migrating security systems across APIs, databases, and distributed services takes years, so waiting for quantum computers capable of breaking RSA and ECC would leave too little time. It recommends that developers first inventory all asymmetric cryptography in their stack, including TLS endpoints, encrypted data at rest, authentication tokens, and code signing. A hybrid approach that pairs classical key exchange with ML-KEM is suggested to preserve compatibility while guarding against harvest-now, decrypt-later attacks. Developers are also advised to plan for larger key and signature sizes and to build crypto-agile abstraction layers.

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ProgrammingDEV Community ·

Quantum Computers Could Break Modern Encryption Once They Reach Fault-Tolerant Scale

An article on DEV Community warns that a 'Q-Day' is approaching, when fault-tolerant quantum computers become powerful enough to run Shor's algorithm and undermine today's public-key cryptography. It explains that RSA and elliptic-curve schemes rely on problems that are hard for classical machines, but that roughly 4,096 fault-tolerant logical qubits could cut the time needed to break RSA-2048 or ECC-256 from thousands of years to under eight hours. The piece argues that blockchains, TLS and web certificate systems would be exposed, and that adversaries are already storing encrypted traffic to decrypt later. It recommends migrating to NIST-approved post-quantum standards such as ML-KEM, ML-DSA and lattice-based cryptography before the transition window closes.

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ProgrammingDEV Community ·

Testing Spring Application Behavior When Porting to Codename One

The Codename One backend is not Spring compatible, though it uses similar syntax to simplify migration. Because familiar annotations cannot confirm that a ported app behaves identically, the article recommends writing tests in the original Spring application first. Those tests capture client-facing behavior and are then carried over to Codename One, using its testing API with comparable request builders and assertions. The example covers a /greet/{name} endpoint and an unknown route returning not found, and the same inputs and expectations are kept while only framework imports and annotations change. The author advises testing validation errors, missing records, denied access, and stored state for write endpoints, since these expectations define what the port must preserve.

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ProgrammingHacker News ·

Blog Post Explores a Personal Dispute Over a Neighbor and a Guiding Principle

A blog post on Last Word on Nothing, dated October 19, 2026, recounts a situation involving the author and a neighbor. The piece frames the dispute around a broader principle the author considers important. The article text available here is limited to metadata, so the specific details of the disagreement and its resolution cannot be confirmed. The post gained modest attention on Hacker News, with 4 points and no comments at the time of capture. Readers would need to consult the original essay for the full account and reasoning.

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ProgrammingDEV Community ·

Indie Developer Launches Free 3D Dinosaur Runner Dino3D.gg With Global Leaderboards

An independent developer has released Dino3D.gg, a free 3D take on the classic Chrome Dino runner game. Players can sign in with Google or Discord to save personal best scores and compete on global leaderboards. The game runs in desktop and mobile browsers without requiring any installation. It also supports multiple languages. The developer has asked the community for feedback on gameplay and the login experience.

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ProgrammingDEV Community ·

Pricing rule rollout errors tracked with PII-safe, cohort-level rollback signals

The article argues that a failed pricing-rule rollout should be judged by comparing error rates between the new rule and a control group, not by a global error count. It recommends attaching only seven groups of metadata to each error event, including a stable error code, release and environment, request and trace IDs, a keyed pseudonymous actor key, processing region, and the exact flag variant and rule revision. Raw exception messages, request payloads, and direct identifiers such as emails or raw user IDs are kept out by building events from an allowlist rather than cleaning up a broad context blob afterward. Request IDs act as a controlled bridge to separately governed operational records that authorized investigators can access. The approach is presented as a way to answer whether the new rule increased failures without collecting customer data that the team does not need.

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ProgrammingDEV Community ·

Solo Creator Builds Scripts to Package One Digital Asset for Stock Sites and Shops

After 30 finished digital assets sat unsold because of manual upload work, the author built a packaging pipeline to handle the chores. A metadata script emits the exact CSV header each stock platform requires, since Adobe Stock rejected a row with the wrong column count. A small ledger tool tracks posted items so re-runs don't trigger account reviews. A third script bundles products and renders 1280x720 cover and 600x600 thumbnail images, since listings without previews failed to sell. The author argues one asset should be packaged for stock uploads, product packs, and listings, and the tools rely only on Python's standard library plus Pillow and reportlab.

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