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ProgrammingDEV Community ·

Adding Longhorn Persistent Storage to a 3-Node Talos Homelab

A builder of a 3-node Talos homelab found that its default ephemeral storage cannot support stateful apps like Grafana or PostgreSQL, since data is lost when pods or nodes fail. To fix this, they integrated Longhorn, a Kubernetes-native storage system built for redundancy and availability. Longhorn replicates each volume across two nodes, rebuilds lost replicas automatically after a failure, and takes hourly local snapshots. It can also send compressed, encrypted snapshot backups to S3-compatible storage for protection against localized failures. The Longhorn UI runs on the local network and is reached remotely through Tailscale.

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ProgrammingDEV Community ·

Biohub's Alex Rives on virtual cells, measurement tools, and a $1.8B data push

Alex Rives, chief science officer at Biohub, discusses using AI and data science to understand and eventually treat disease, with the institute's stated aim of curing or preventing all diseases. He argues that the main bottleneck for virtual cell models is not model architecture but the lack of high-quality observational data that captures causal relationships inside cells. Biohub has announced an $1.8 billion Virtual Biology initiative with partners including the US Department of Energy, the NIH, Google DeepMind, Isomorphic Labs and Meta, focused on generating large-scale spatial biology data. Rives also highlights new imaging methods such as laser phase plates, which can reveal molecular interactions in near-native cellular conditions. He envisions a near-term information-theoretic model of the cell and a longer-term world model of biology.

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ProgrammingDEV Community ·

Cached index.html causing 404 errors after fresh app deployments

A DEV Community article describes a common deployment problem where users still see a 404 error after a new app version is released. The stale cached copy of index.html is the root cause, since it references asset files that no longer exist on the server. The author explains that browsers and CDNs can keep serving the old HTML even after the build has changed. The piece outlines the general mechanism behind the issue and why it tends to appear right after a deploy. The source text provided is incomplete, so specific fixes and details from the full article are not covered here.

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ProgrammingDEV Community ·

Quiet customers may be the ones most at risk of leaving

An article on DEV Community argues that customers who never complain are not necessarily satisfied and may be quietly considering leaving. Complaints signal that a customer still expects a business to perform, whereas silence can mask a decision already made. The author notes that a yearly survey misses these early warnings, which show up in behavior such as shrinking order sizes, slower replies, and fewer interactions. Because retaining an existing customer costs far less than winning a new one, the piece recommends a weekly review of accounts that have gone quiet. It suggests a short, personal, specific message to each of them, and says businesses should be able to show when they last had a real conversation with each key account.

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ProgrammingDEV Community ·

Study finds practice-session candidates accept 93% of AI-proposed code in coding interviews

A study of 438 people practicing AI-assisted coding interviews on the nyrion.ai platform found that participants accepted 93% of the code the assistant proposed. Ten companies, including Canva, Shopify, Meta, Amazon and Google, have added an AI assistant to their coding interview rounds since June 2025. Candidates who received an AI proposal before first submit passed the stage's test suite 87% of the time, compared with 53% without one, though the author notes this is a correlation. When asked to explain their submitted code, only 9% of written answers were complete, while 79% were partial and 12% were off. The author stresses these are practice sessions, not real interviews, and that the figures reflect practice behavior rather than every company's format.

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ProgrammingDEV Community ·

Enabling Supabase RLS alone doesn't keep data private; seven other surfaces can leak it

A developer explains that turning on Row Level Security in Supabase does not by itself make data private, since policies, views, grants, and related objects also determine access. The article warns that a common mistake is shipping a broad "temporary" policy, such as one using a true condition, which leaves tables readable by anyone holding the public anon key. It also notes that policies lacking WITH CHECK clauses can let users write rows into other tenants' data. Views running with owner privileges can bypass base-table RLS unless configured with security_invoker, and loose grants to anon or authenticated roles can expose sensitive tables. The author provides read-only catalog queries to audit these surfaces, beginning with the pg_policies view.

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ProgrammingDEV Community ·

Easy CMS: an open-source headless CMS that runs inside Nuxt and Next.js apps

A developer has released Easy CMS, an MIT-licensed headless content management system that installs directly into a Nuxt or Next.js application via npm. Unlike Git-based tools such as Nuxt Content, it stores content in a database and supports records, roles, and user-created data. The author built it because existing options like Payload require a separate Next.js host, while Directus, Strapi, Sanity, and Contentful add extra servers or rely on cloud hosting. Content is defined in a typed configuration file, and the tool provides an admin panel at /admin, a typed Local API, and a REST endpoint. The core is framework-free, so it can also run as a standalone server for any frontend.

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ProgrammingDEV Community ·

Giving an AI agent browser control unlocked tasks that previously had no API

The author initially kept an AI agent limited to the terminal, avoiding browser automation due to expected flakiness. A weekly report locked behind a login with no export option forced a change. Key challenges included detecting when pages were fully loaded using specific element waits rather than fixed delays, distinguishing real failures from slow loading, and clicking by accessibility role and name instead of unstable coordinates. The agent was also designed to stop and ask for human input at security prompts like two-factor authentication. The author found the real gain was enabling tasks previously thought to require manual work, such as reading dashboards and checking supplier portals, while still remaining cautious about partially working automation.

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ProgrammingHacker News ·

Hacker News Thread Declares 'SaaS Is Dead' Amid Debate Over Software Business Models

A post titled 'SaaS Is Dead' appeared on Hacker News, linking to an external site at saasisdead.si. The submission has drawn 4 points and a single comment so far. The provided material includes only the headline, link, and engagement figures, without the full text of the linked article. As a result, the specific arguments made about the future of software-as-a-service cannot be verified from this source alone.

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ProgrammingHacker News ·

Alibaba raises DeepSeek V4 Flash 0731 output prices by 230%

Alibaba has reportedly increased the output pricing for the DeepSeek V4 Flash 0731 model by 230%. The change was highlighted in a newsletter from Stork.ai, which described the move as a quiet tripling of DeepSeek prices. The item gained traction on Hacker News, where it drew 14 points and 10 comments. The source material provides only the headline and a link, so details about the timing and the reasons behind the increase are not confirmed here.

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ProgrammingDEV Community ·

Developer details design of a Python-built Windows encryption suite, with a bounty for breaking it

The author describes ATLOCK v5, a Windows security tool written as a single Python file, and focuses on failure cases such as wrong passwords, tampered headers, rolled-back state files, and corrupted data. The file container uses chunked AES-256-GCM with independent per-chunk authentication, per-seal subkeys, and header-bound authenticated data. A key commitment check rejects wrong keys before any plaintext is produced, and KDF parameters are clamped to limits to resist resource-exhaustion from doctored files. Sensitive state is stored through an encrypted store protected by DPAPI, with a rollback anchor and an optional TPM-backed mode. The post closes with a challenge offering a reward to anyone who can break the container.

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ProgrammingHacker News ·

Pillowfort, the social networking platform, announces it is shutting down

Pillowfort, a social networking site, has announced that it is closing. The notice was published on the platform's own website and drew attention on Hacker News, where it received 4 points and 2 comments. The source material provides no further details about the reasons for the closure or the exact shutdown date. Readers interested in the full announcement can refer to the linked post on pillowfort.social.

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ProgrammingHacker News ·

Battlezone Online: BZFlag Tank Game Now Runs in the Browser

A GitHub project called bzo has brought BZFlag, the open-source tank combat game, into web browsers. The repository was shared on Hacker News, where it gained a few points but no comments at the time of posting. The source article text is limited to the project link and discussion metadata, so the specific technical approach and features are not described. Interested readers can review the code and documentation directly on GitHub.

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ProgrammingDEV Community ·

Mistral Large 4 Trails DeepSeek V4.1 Flash in Coding Benchmarks, Though Some Losses Were Test Errors

An independent evaluation tested Mistral Large 4, released as a Public Preview in October, against DeepSeek V4.1 Flash on two agentic coding benchmarks. Mistral Large 4 scored 0.5462 on the Gauntlet, placing 28th of 44, while DeepSeek V4.1 Flash scored 0.6957 there and finished faster and cheaper. On the Forge 2.0 task, Mistral's two builds scored 0.1086 and 0.3304, compared with 0.2422 and 0.6618 for DeepSeek. The author attributes part of the Gauntlet shortfall to a bug in the author's own scorer and notes that some Forge losses came from the model's own throttling behavior. The results reflect a single run per benchmark in one specific setup, and the vendor has warned the preview model may change without notice.

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ProgrammingDEV Community ·

Converting Portfolio PNGs to WebP for Faster Gallery Pages

Photography portfolio sites must look polished yet load quickly, since oversized PNG images slow pages and drive visitors away, particularly on phones. The author recommends keeping full-resolution masters as archives and exporting web images at display size with modest retina headroom, roughly 2x at most. PNGs can then be converted to WebP in the browser, which keeps files on the user's device rather than uploading them to a third-party server. Creators should spot-check gradients and watermark text at 100% zoom for banding, and use a PNG fallback for older apps and email previews. The piece stresses that WebP is a delivery format rather than an archive, so originals should never be deleted after conversion. The article is written by the developer of FileOnTap, a free browser-based converter it promotes.

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ProgrammingDEV Community ·

Un desarrollador convierte sus agentes de IA en una oficina pixel-art visible para su equipo

Un desarrollador que trabaja con varios agentes de programación en paralelo creó deskmates, una herramienta de código abierto que representa cada sesión de agente como un personaje en una oficina pixel-art. Los personajes muestran si un agente está trabajando, esperando permiso o terminado, y los subagentes aparecen junto al agente que los lanzó. Según el artículo, la herramienta se conecta a Claude Code mediante hooks y a otros agentes a través de sus archivos de sesión o una API HTTP, y solo transmite nombres de herramientas y detalles breves, no prompts ni contenido de archivos. Una versión compartida permite que varias personas de un equipo vean sus agentes en una misma oficina virtual.

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ProgrammingDEV Community ·

WebRTC Encrypts Media by Default, But Full App Security Is Still the Developer's Job

WebRTC encrypts audio and video with SRTP and protects data channels with DTLS, so standards-compliant browser connections cannot send unencrypted media. However, this only secures the transport layer and does not make an entire application secure. Authentication, authorization, signaling, TURN access, server settings, recordings, and data handling remain the operator's responsibility. The article also notes that media servers which terminate and re-create connections can access media in between, meaning this is transport encryption rather than necessarily end-to-end encryption. It concludes that the protocol provides a strong foundation, while developers must secure the surrounding application.

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ProgrammingDEV Community ·

Samsung firmware downgrades depend on bootloader version numbers

Flashing an older Samsung firmware over a newer one is sometimes possible, but the bootloader revision decides the outcome. Each build string contains a bootloader binary digit, and a phone will reject any firmware whose binary number is lower than its current one, with Odin reporting an SW REV check failure. Downgrades therefore work within the same bootloader generation, such as moving to an older build with the same binary, but typically fail when crossing a bootloader bump. Downgrading does not reset a tripped Knox counter, remove carrier locks, or necessarily fix bugs baked into the bootloader. The guide advises noting the current binary, comparing it with the target build, and backing up data first, since downgrades usually wipe user data.

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ProgrammingDEV Community ·

pyursa: A DataFrame Library Designed to Fail Loudly for AI Agents

The author argues that AI agents writing data code need libraries that expose mistakes rather than hide them, since agents often lack a human reviewer to catch silent errors. Pandas is cited as an example that can return wrong results without warning, such as an integer sum overflowing into a negative number. The new library, pyursa, responds with stable error codes, machine-readable JSON error output, and fix suggestions that an agent can apply directly. Errors are raised when the query plan is built, so mistakes surface before any data is processed. The library also enforces strict typing rules, including exact decimal arithmetic, rejecting lossy casts, and treating time zones as part of the type.

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ProgrammingDEV Community ·

Node.js GitHub Actions Gate Blocks Leaked Keys and Risky Dependencies

A walkthrough describes a single GitHub Actions workflow that runs on every pull request to a Node.js project. It scans new commits for leaked API keys, checks newly added dependencies for known high-severity vulnerabilities, and verifies that the lockfile is consistent and pulls only from the npm registry over HTTPS. The author argues that reviewers tend to miss secrets in diffs and transitive dependencies buried in large lockfile changes, a problem worsened by AI coding assistants that hardcode credentials. Because deleted secrets remain in git history, the piece stresses rotation as the only real remedy once a key leaks. It also cautions that a noisy gate gets bypassed, and suggests that solo projects with no sensitive data may only need GitHub's free secret scanning and Dependabot alerts.

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