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Medium
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87
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When Your React Native App Becomes a Storage Hog (And How I Trimmed 40MB Without Breaking Anything)
- A client raised concerns about their 180MB React Native app causing storage issues for users.
- App size can impact download rates, user retention, and performance on mobile devices.
- Strategies were implemented to reduce the app size without compromising features.
- Reducing app size is crucial as it affects user experience and download rates significantly.
- The article outlines real solutions used to trim a React Native app from 180MB to 140MB.
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Self-Learning-Java
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78
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Recording Rules in Prometheus
- Recording Rules in Prometheus allow precomputing complex queries for faster dashboards and alerts.
- Recording Rules are like materialized views in databases, storing query results for reuse.
- Prometheus supports Recording Rules and Alerting Rules defined in YAML.
- Create Recording Rules in a YAML file, defining PromQL expressions and unique names.
- Add the rule file to Prometheus config and restart to apply new rules.
- Example rule calculates average CPU idle time over the last 5 minutes.
- Naming convention for rules:
: : . - Benefits of Recording Rules include speed and efficiency in data processing.
- By default, rules are evaluated at intervals defined in Prometheus server config.
- Promtool helps validate rule files to ensure correct configuration.
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Medium
3w
92
How We Offer Free Digital Services Through a Win-Win Model ?
- A team of freelancers, designers, marketers, and developers offer free digital services in exchange for completing small tasks.
- They do not ask for payment but require engagement or support to help keep the project running.
- Free services offered include creating and funding promotional ads, basic video editing, landing page design, and website building assistance.
- The model aims to help individuals without a budget access digital services while allowing the team to grow their platform.
- The services are genuine, provided by real freelancers, without any catch or automated work.
- Users can request services by visiting their website, choosing a service, completing a simple task, providing their information, and getting the service done for free.
- Agatask, the platform providing free services, believes in making value accessible to those with motivation and talent but limited budgets.
- They encourage creators, small business owners, students, and individuals with ideas and small budgets to take advantage of their services.
- Agatask website link: https://agatask.carrd.co/
- The platform relies on a win-win model that benefits both service requesters and providers.
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Self-Learning-Java
3w
131
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How to Reload Prometheus Configuration Without Restarting the Server?
- When you change the prometheus.yml configuration file, Prometheus does not automatically pick up the changes.
- Two ways to reload the configuration without restarting the server: using the SIGHUP signal and using a POST request to the Reload Endpoint.
- To reload using the SIGHUP signal on Linux systems, find the Prometheus process ID and send the SIGHUP signal to reload the config.
- The SIGHUP signal is used to instruct a process to reload its configuration without restarting.
- To reload via POST request, start Prometheus with the lifecycle endpoint enabled and send a POST request to /-/reload.
- Enable the lifecycle endpoint by starting Prometheus with the --web.enable-lifecycle flag.
- You can confirm changes to the configuration by observing the targets section in Prometheus.
- Ensure the user running the command has permission to send signals to the Prometheus process.
- Changes made to the configuration file will not be reflected automatically; a signal needs to be sent to prompt the reload.
- Executing the kill -HUP command with the process ID triggers the configuration reload.
- Alternatively, utilize a POST request to /-/reload to trigger the configuration reload.
- You can observe changes in the Prometheus targets section after reloading the configuration.
- Removing a job from the Prometheus configuration file and sending a POST request to /-/reload will reflect the changes.
- Both methods provide efficient ways to update Prometheus configurations without server restarts.
- Reloading configurations at runtime ensures updates take effect without interrupting metrics collection.
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Medium
3w
8
Tic-Tac-Toe Game in React
- When managing state in React, it's important to update it immutably to avoid bugs.
- Sharing state between components by lifting it to a common parent can help in keeping data in sync.
- It's advised to avoid managing the same data in multiple states and deriving values from props or existing state when possible.
- The Tic-Tac-Toe game discussed replays all turns to reconstruct the current state of the board.
- The game's logic is based on checking for winning combinations of 'X' or 'O' symbols in rows, columns, or diagonals.
- In React, JSX requires a single parent node per expression, leading to the need for careful structuring of components.
- Use of .map method in React for rendering elements can help create dynamic content.
- Avoid mutating the original state object directly in React to ensure proper re-rendering.
- React identifies changes by checking references, so updating state immutably is crucial for triggering re-renders.
- Working with React can be a challenging but rewarding experience, providing valuable insights into programming concepts and limitations.
- Despite the complexities, projects like building a Tic-Tac-Toe game in React serve as valuable learning experiences.
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Self-Learning-Java
3w
332
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A Beginner’s Guide to Views in BigQuery
- A view in BigQuery is a virtual table that shows data by running a predefined SQL query on existing tables.
- Key characteristics of views include not storing physical data, being read-only, having a frozen schema, and being dependent on base tables.
- Views are useful for controlled access, creating customized views for different user roles, and simplifying complex queries.
- To work with views in BigQuery, you can create a table, insert sample data, print table content, and create a view with specific criteria.
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Self-Learning-Java
3w
205
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How to Query External Data in BigQuery?
- BigQuery is a powerful data warehouse solution on Google Cloud Platform known for its speed, scalability, and simplicity.
- External data sources in BigQuery allow querying data directly from external storage systems like Google Cloud Storage, Bigtable, Google Drive, and Cloud SQL without loading it into BigQuery.
- External data sources can save time, reduce storage costs, and provide flexibility with large or frequently changing datasets.
- Supported external sources include Google Cloud Storage, Google Drive, Cloud Bigtable, and Cloud SQL.
- Steps to query external data include uploading data to a GCP Bucket, creating a table using the uploaded data, and choosing between Native and External tables.
- Native tables copy data into BigQuery, while External tables keep data in external sources with metadata in BigQuery.
- Limitations of working with External Data Sources include slower query performance, no query caching, and limited partitioning and clustering support.
- For reliable results and better performance, consider loading data into native BigQuery tables instead of querying external sources.
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Medium
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284
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How I Earn From Credit Cards (You Can Earn Too)
- Credit cards can be valuable tools if used wisely, offering benefits like saving money, earning rewards, and boosting credit scores.
- The key to leveraging credit cards effectively is through understanding how to navigate and benefit from the system.
- Initially cautious due to negative stories about credit card debt, the writer's perspective shifted as they discovered the potential advantages of credit cards.
- By observing friends accumulate rewards like free flights and cashback through strategic credit card usage, the writer became interested in exploring similar opportunities.
- Research helped the writer comprehend that responsible credit card usage, coupled with discipline and strategic approaches, could be beneficial.
- Choosing the right credit card is crucial, as not all cards offer the same benefits or rewards.
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Medium
3w
425
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Our CTO Bet on Rust. I Secretly Rewrote Everything in Go — And Won.
- The CTO of a company decided to rewrite their backend in Rust due to its speed, safety, and elegance.
- During a postmortem in Q3, issues such as GC pauses, memory bloat, and API timeouts led to the decision to switch to Rust.
- The team was directed to build all new services in Rust, with plans to eventually replace legacy Python and Go services.
- Many team members were not proficient enough in Rust to meet the company's required pace.
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Hackaday
3w
30
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Make Magical-Looking Furniture With Kerf Bend Wizard
- Woodworker and programmer Michael Schiebler has developed the Kerf Bend Wizard to assist in creating twisted and bent wood pieces.
- Kerf bending involves cutting material on the inside of wood to enable bending, and the Kerf Bend Wizard determines the amount and placement of wood to be removed for optimal bending.
- The tool accepts spline inputs and generates cut patterns tailored to achieve the desired bend, saving time and ensuring a strong final piece.
- It can work with both table saw blades and CNC/milling tools, allowing customization of kerf width and cut depth.
- The output is in DXF format for CNC use, with a clear table indicating cutting distances and sides for convenience.
- Kerf Bend Wizard can handle complex bends that require kerfing on both sides of the material.
- Michael developed this tool as part of his thesis project and offers an online version via GitHub for public use.
- While the web version may not remain ad-free or free of monetization in the future, an offline version is available for download.
- Kerf bending techniques are also applicable with laser cutters for those not using CNCs or table saws.
- Special thanks to Michael for sharing this innovative tool that bridges woodworking and programming.
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Dev
3w
61
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Streamlining Image Moderation API Uploads in Node.js: From Native Fetch to Form‑Data and DNS Fixes ⚙
- Integrating the Sightengine image moderation API into a Node.js application led to encountering and solving various challenges.
- Initially attempted to use native fetch and form-data in Node.js, which resulted in errors like ConnectTimeoutError and DNS ENOTFOUND.
- Resolved DNS issues by bypassing the systemd-resolved resolver and pointing to public DNS.
- Encountered limitations with Blob vs. streams while trying to stick with pure native APIs.
- Opted for the final solution using form-data and node-fetch, providing a reliable approach in Node.js for file uploads with multipart requests.
- The final code setup mirrors curl -F, streams the file efficiently, and ensures valid multipart requests.
- In conclusion, by fixing DNS resolver, understanding FormData limitations in Undici, and resorting to form-data + node-fetch, a robust streaming multipart setup akin to curl -F can be achieved in Node.js.
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Medium
3w
315
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Building AI for Privacy: Custom Recommendations with Local LLMs
- Building AI for Privacy: Custom Recommendations with Local LLMs focuses on creating a system for delivering sub-second recommendations with user privacy in mind.
- The system generates recommendations in advance to provide instant results without user wait times.
- The setup involves using a privacy-first local LLM setup based on question-response tuples and preference profiles.
- The approach aims to be cost-efficient, sustainable, and efficient by avoiding real-time processing and repetitive API requests.
- The system separates content generation and delivery, ensuring sub-second response times and scalability.
- CLI management commands in Django handle heavy lifting off-session for efficient processing.
- The workflow includes profile generation, content generation through LLM, and translation/refinement for custom recommendations.
- By using asynchronous processing, the system eliminates user wait times while maintaining privacy and quality.
- The process involves converting survey answers into structured prompts to create reliable recommendations.
- The article emphasizes building scalable, local-first AI applications that prioritize user experience and data privacy.
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Medium
3w
328
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Streamlining Image Moderation API Uploads in Node.js: From Native Fetch to Form‑Data and DNS Fixes
- The article discusses the challenges faced while trying to mirror a curl -F snippet in pure Node.js for streamlining image moderation API uploads.
- Using undici and the form-data package initially led to ConnectTimeoutError and DNS ENOTFOUND issues, despite curl working fine.
- A workaround involved bypassing the resolver systemd-resolved and pointing to public DNS to resolve the API host.
- After restarting systemd-resolved, both nslookup and the Node.js code managed to resolve the API host.
- Attempts were made to rely on pure native APIs, but FormData.append in Undici only accepted string, Buffer, or Blob contents, resulting in errors.
- The most reliable approach chosen in Node.js involved using a specific method to mirror curl -F, stream the file to avoid a memory hit, and generate valid multipart requests.
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Ubuntu Handbook
3w
241
VS Code 1.101 Released with Tool Set, Custom Chat Mode & MCP Auth
- Visual Studio Code released version 1.101 with various improvements and new features.
- New release allows defining tool sets through UI or API, making it easier to group related tools together.
- Model Context Protocol support has been enhanced with authentication support for MCP servers.
- Prompts can now be defined by MCP servers to generate reusable snippets or tasks for language models.
- Custom chat modes can now be created, enabling users to specify behavior and available tools.
- UX improvements include distinct appearance for user messages and new functionalities like undo request.
- Added abilities to disable find-as-you-type behavior and specify menu styles on different platforms.
- Preview features include settings search suggestions, keyboard suggestions, and semantic search behaviors.
- Code editing improvements with better accuracy and reliability for Next Edit Suggestions (NES) and expanded Python file support.
- Other changes include enhancements in chat agent functionalities, task error awareness, and process explorer support in the web.
- Support for various tools like pyenv, poetry, and new chat tools in Python Extension.
- VS Code 1.101 is available for download on Windows, MacOS, and Linux platforms.
- For Ubuntu users, official deb and snap packages are provided, along with a community-maintained flatpak option.
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Dev
3w
52
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10 Tools Every Developer Should Try in 2025
- A list of 10 tools recommended for developers in 2025.
- 1. Raycast: Fast Mac productivity tool similar to Spotlight.
- 2. Zed: Lightning-fast minimal code editor.
- 3. Insomnia: Simple API testing tool, an alternative to Postman.
- 4. Playwright: E2E testing for modern apps, easier than Selenium.
- 5. Turso: Edge-hosted SQLite database for speed.
- 6. Make: No-code automation tool for workflows.
- 7. Notion + GitHub Sync: Manage dev docs in Notion integrated with issues and PRs.
- 8. Codeium: AI code completion tool, alternative to Copilot.
- 9. LogRocket: Session replay + performance monitoring for bug fixing.
- 10. Haikei: Generate unique SVG backgrounds quickly.
- Developers are encouraged to share their favorite tools.
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