Programming Tech Brief By HackerNoon

This story was originally published on HackerNoon at: https://hackernoon.com/inside-a-34-petabyte-migration-the-true-cost-of-moving-a-digital-mountain. The true cost of a large-scale data migration isn’t in the storage, it’s in the movement. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #programming, #cloud-computing, #data-migration, #digital-preservation, #hybrid-object-storage, #tape-to-object-migration, #large-scale-data-migration, #petabyte-scale-storage, and more. This story was written by: @carl_o700c5l. Learn more about this writer by checking @carl_o700c5l's about page, and for more stories, please visit hackernoon.com. The true cost of a large-scale data migration isn’t in the storage, it’s in the movement. Every file has history, metadata, and risk. Every storage platform has bottlenecks. Every misstep can cost you time, money, and trust.

This story was originally published on HackerNoon at: https://hackernoon.com/blast-api-shutdown-the-best-alternatives-for-developers. Blast API ends operations in Oct 2025. Explore the best developer alternatives like NOWNodes and Alchemy for secure, scalable RPC migration. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #blast-api-shutdown, #web3-rpc-providers, #nownodes, #alchemy-api, #web3-migration-guide, #decentralized-apps, #blockchain-developer-tools, #good-company, and more. This story was written by: @nownodes. Learn more about this writer by checking @nownodes's about page, and for more stories, please visit hackernoon.com. Blast API is shutting down in October 2025 following Alchemy’s acquisition. Developers must migrate fast to keep their dApps running. NOWNodes offers multi-chain scalability with no RPS limits, while Alchemy provides deep Ethereum integration. Pick based on your ecosystem focus and scaling needs.

This story was originally published on HackerNoon at: https://hackernoon.com/the-myth-of-single-threaded-javascript-inside-the-languages-hidden-concurrency-engine. Explore the concurrency model of modern JavaScript, including the event loop, async/await, and more. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #javascript, #concurrency, #webdev, #tutorial, #javascript-concurrency, #single-threaded-javascript, #microtasks-vs-macrotasks, #asynchronous-programming, and more. This story was written by: @hacker5295744. Learn more about this writer by checking @hacker5295744's about page, and for more stories, please visit hackernoon.com. Modern JavaScript offers a rich (although muddled) concurrency landscape. From the event loop and. async/await to Web Workers, async iterators, and Shared.ArrayBuffers. Understanding how these layers of concurrency interact is essential for building responsive UIs, scalable backends, and reliable serverless functions.

This story was originally published on HackerNoon at: https://hackernoon.com/why-kube-prometheus-stack-isnt-enough-for-kubernetes-observability. Monitoring tells you what broke; observability explains why. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #kubernetes, #observability, #devops, #kubernetes-observability, #kubernetes-guide, #prometheus, #grafana, #kubernetes-monitoring, and more. This story was written by: @fatihkoc. Learn more about this writer by checking @fatihkoc's about page, and for more stories, please visit hackernoon.com. Kube-prometheus-stack bundles Prometheus and Grafana for monitoring Kubernetes workloads. On the surface, it looks like the answer to all your monitoring needs. But monitoring is not observability, and if you confuse the two, you will hit a wall.

This story was originally published on HackerNoon at: https://hackernoon.com/from-50-pages-of-handwritten-notes-to-a-digital-manuscript-with-python-and-ai. Apple's HEIC (High-Efficiency Image Container) is great for saving space, but not so great for compatibility. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #python, #ai, #programming, #productivity, #ai-ocr-technology, #llm, #creativity, #image-processing, and more. This story was written by: @knightbat2040. Learn more about this writer by checking @knightbat2040's about page, and for more stories, please visit hackernoon.com. Apple's HEIC (High-Efficiency Image Container) is great for saving space, but not so great for compatibility. Many APIs and libraries are optimized for older, more universal formats like JPEG. The beauty of Python is its vast ecosystem of libraries that can solve almost any problem. This little script was the key that unlocked the entire project.

This story was originally published on HackerNoon at: https://hackernoon.com/code-smell-312-you-put-multiple-assertions-in-one-test-making-failures-hard-to-analyze. You put multiple assertions in one test, making failures hard to analyze. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #programming, #software-development, #code-smells, #common-code-smells, #refactoring, #refactor-legacy-code, #code-smell-312, #hackernoon-top-story, and more. This story was written by: @mcsee. Learn more about this writer by checking @mcsee's about page, and for more stories, please visit hackernoon.com. You put multiple assertions in one test, making failures hard to analyze.

This story was originally published on HackerNoon at: https://hackernoon.com/a-guide-to-familiarize-yourself-with-workspaces-in-go. Go 1.18 adds workspace mode to Go, which lets you work on multiple modules simultaneously. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #golang, #go, #go-workspaces, #go-1.18, #go-tutorial, #go-guide, #go-workflows, #hackernoon-top-story, and more. This story was written by: @Go. Learn more about this writer by checking @Go's about page, and for more stories, please visit hackernoon.com. Workspaces in Go 1.18 let you work on multiple modules simultaneously without having to edit go.mod files for each module. Each module within a workspace is treated as a main module when resolving dependencies.

This story was originally published on HackerNoon at: https://hackernoon.com/testing-the-untestable-a-simple-way-to-handle-static-methods-in-legacy-java. This is a pretty straightforward way to test untestable code. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #coding, #programming, #testing, #writing-testable-code, #testable-design, #java, #code-testing, #dependency-injection, and more. This story was written by: @nfrankel. Learn more about this writer by checking @nfrankel's about page, and for more stories, please visit hackernoon.com. This is a pretty straightforward way to test untestable code.

This story was originally published on HackerNoon at: https://hackernoon.com/the-moral-cost-of-the-growth-hack. Finding the balance between growth and ethics is hard. Here’s how designers can create user journeys that drive results without crossing the line. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #ui, #ui-ux, #moral-design, #moral-design-choices, #ethical-ui, #ethical-ux, #ethical-ui-ux, #hackernoon-top-story, and more. This story was written by: @hacker4949449. Learn more about this writer by checking @hacker4949449's about page, and for more stories, please visit hackernoon.com. Ethical growth design isn’t about saying no to business goals, it’s about finding a fair balance where users feel valued, not used.

This story was originally published on HackerNoon at: https://hackernoon.com/code-smell-08-send-messages-only-to-your-direct-acquaintances-not-their-friends. Send messages only to your direct acquaintances, not their friends. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #code-smells, #clean-code, #programming, #refactoring, #refactor-legacy-code, #software-development, #technology, #hackernoon-top-story, and more. This story was written by: @mcsee. Learn more about this writer by checking @mcsee's about page, and for more stories, please visit hackernoon.com. Send messages only to your direct acquaintances, not their friends.

This story was originally published on HackerNoon at: https://hackernoon.com/react-19-new-tools-to-work-with-forms. Discover how React 19's new hooks—useActionState, useFormStatus, and useOptimistic—simplify form handling with less boilerplate and cleaner code. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #react, #software-development, #software-engineering, #react-tutorial, #react-hooks, #react-components, #engineering, #good-company, and more. This story was written by: @socialdiscoverygroup. Learn more about this writer by checking @socialdiscoverygroup's about page, and for more stories, please visit hackernoon.com. React 19 introduces new tools that make form handling cleaner, more declarative, and far less error-prone. This article walks through the common struggles developers face when dealing with forms.

This story was originally published on HackerNoon at: https://hackernoon.com/how-we-built-mobile-weather-widgets-that-improved-apples. We didn’t want to create “mini versions” of the app – we wanted to surface the most relevant insights in the most accessible way possible. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #mobile-app-development, #ios-app-development, #app-development, #widgets, #weather-app, #instant-weather-app, #widget-support, #widget-development, and more. This story was written by: @oleksiischastlyvyi. Learn more about this writer by checking @oleksiischastlyvyi's about page, and for more stories, please visit hackernoon.com. Lessons Learned Great widgets feel invisible. Users don’t want to think about them – they just want instant clarity. Server-side rendering pays off. Especially for radar data, pre-rendered map tiles reduce load and battery impact. User customization beats default simplicity. Power users demand control, and they reward apps that trust them.

This story was originally published on HackerNoon at: https://hackernoon.com/stop-rebuilding-software-that-already-exists-heres-how. If a great utility lives on page seven of search, it should still be easy to find when you describe what it does. The goal is one intent‑friendly place Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #software-development, #ai, #search-engine, #vector-database, #text-embeddings, #startups, #venture-capital, #retrieval-augmented-generation, and more. This story was written by: @hendrikc. Learn more about this writer by checking @hendrikc's about page, and for more stories, please visit hackernoon.com. You know what? Search should feel simple. Type, get answers. The trick is making the machine do the hard part so the human doesn’t have to.

This story was originally published on HackerNoon at: https://hackernoon.com/synchronizing-data-from-mysql-to-postgresql-using-apache-seatunnel. A step-by-step walkthrough of building a real-time data pipeline to merge and synchronize MySQL data sources using Apache SeaTunnel. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #postgresql, #apache-seatunnel, #mysql, #data-science, #data-engineering, #data-sync, #real-time-etl, #hackernoon-top-story, and more. This story was written by: @williamguo. Learn more about this writer by checking @williamguo's about page, and for more stories, please visit hackernoon.com. A step-by-step walkthrough of building a real-time data pipeline to merge and synchronize MySQL data sources using Apache SeaTunnel.

This story was originally published on HackerNoon at: https://hackernoon.com/code-smell-311-never-store-or-compare-plain-text-passwords. When you store or compare passwords as plain-text, you expose users to unnecessary risk. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #programming, #technology, #software-development, #software-engineering, #code-smells, #common-code-smells, #refactoring, #code-smell-311, and more. This story was written by: @mcsee. Learn more about this writer by checking @mcsee's about page, and for more stories, please visit hackernoon.com. When you store or compare passwords as plain-text, you expose users to unnecessary risk.

This story was originally published on HackerNoon at: https://hackernoon.com/fixing-login-failed-errors-when-dockerizing-your-net-app. Fix “Login failed” errors in Dockerized .NET apps by escaping special characters like $ in .env files. Learn the root cause and the right fix. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #dotnet, #docker-dotnet-auth, #docker-environment-variables, #linux-docker-password-issue, #dotnet-connection-string, #docker-login-failed-error, #escape-dollar-sign-docker, #docker-secrets-best-practices, and more. This story was written by: @hack0r66d473bbae74b08c79eb8efe. Learn more about this writer by checking @hack0r66d473bbae74b08c79eb8efe's about page, and for more stories, please visit hackernoon.com. When you Dockerize a .NET app, special characters in passwords — especially the dollar sign ($) — can cause authentication to fail due to Linux-style variable substitution in .env files. This article walks through the root cause, explains how Docker and PowerShell handle escaping differently, and shares best practices for managing credentials safely across platforms. The fix? Escape $ as $$, validate before deployment, and use Docker Secrets in production. A small syntax tweak can save you hours of debugging.

This story was originally published on HackerNoon at: https://hackernoon.com/from-hours-to-minutes-how-dmall-cuts-data-integration-costs-to-13-with-apache-seatunnel. How Dmall cuts their data integration costs by 1/3 and reduces latency from hourly to minute-level with ApacheSeaTunnel？ Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #data-integration, #apache-seatunnel, #real-time-data-platform, #lakehouse-architecture, #cloud-native-data, #big-data-engineering, #storage-computer-seperation, #apache-paimon, and more. This story was written by: @williamguo. Learn more about this writer by checking @williamguo's about page, and for more stories, please visit hackernoon.com. Real-time, lightweight, and open-source future of data integration.

This story was originally published on HackerNoon at: https://hackernoon.com/docker-environment-variables-development-vs-production-made-simple. Managing environment variables across different environments can be tricky. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #docker, #docker-environment, #docker-environment-variables, #docker-development, #docker-production, #docker-development-production, #docker-production-issue, #using-docker, and more. This story was written by: @hack0r66d473bbae74b08c79eb8efe. Learn more about this writer by checking @hack0r66d473bbae74b08c79eb8efe's about page, and for more stories, please visit hackernoon.com. Managing environment variables across different environments can be tricky.

This story was originally published on HackerNoon at: https://hackernoon.com/code-smell-07-avoid-boolean-variables. Avoid Boolean variables, they lead to conditional logic and force you to write Ifs. Create polymorphic states instead Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #programming, #technology, #software-development, #learn-to-code, #code-smells, #clean-code, #refactoring, #boolean-algebra, and more. This story was written by: @mcsee. Learn more about this writer by checking @mcsee's about page, and for more stories, please visit hackernoon.com. Avoid Boolean variables, they lead to conditional logic and force you to write Ifs. Create polymorphic states instead

This story was originally published on HackerNoon at: https://hackernoon.com/why-i-built-a-zig-dotenv-lib. While working on a Zig based CLI argument parser, I found myself creating a dotenv parser as an unexpected side project. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #programming, #zig, #systems-programming, #library, #zig-dotenv, #zig-parser, #zig-cli-tools, #environment-vars, and more. This story was written by: @dayvster. Learn more about this writer by checking @dayvster's about page, and for more stories, please visit hackernoon.com. While working on a Zig based CLI argument parser, I found myself creating a dotenv parser as an unexpected side project.