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With the Reactive Data Layer Architecture (RDLA), you establish a clear boundary between public data APIs and private, framework-specific data-source implementations. Your presentation layer operates in a purely reactive manner, observing data changes rather than procedurally querying them. RDLA also simplifies testing by encouraging you to program to interfaces and use clean seeding patterns. By Mervyn Anthony

Complete preparation breeds complacency. What is seen every day no longer raises suspicion. The...

The Problem I Kept Seeing Over the past year working across multiple client teams on DevOps and pipeline work, I kept noticing the same thing. Developers storing GitHub PATs in Notepad. QA engineers keeping API keys in a text file on the desktop. DevOps folks with database passwords in a sticky note app. During screen shares — sprint reviews, debugging sessions, pair programming, recorded demos — those credentials were just sitting there. Visible to everyone in the call. Nobody said anything. It just kept happening. Why Existing Tools Didn't Fit I looked for something simple that solved this. Here's what I found and why none of it quite worked: Password managers (1Password, Bitwarden) Good tools. But they're built around cloud sync, browser extensions, and team sharing. For an individual developer who just wants somewhere safe to keep a PAT — overkill. Also: corporate IT policies often block installation of cloud-synced password managers on work machines. Secret managers (HashiCorp Vault, AWS Secrets Manager) These are infrastructure tools, not personal workflow tools. Setting up Vault for an individual developer's PAT collection is like using a forklift to move a chair. OS keystores (Windows Credential Manager, macOS Keychain) Actually decent for storage. But no UI built for this workflow, no copy-to-clipboard, and they don't solve the screen-exposure problem at all. The gap: Something simple, local, and designed around the moment of use — not just storage. So I Built Tokenly Tokenly is a local-only desktop credential vault. The core design principle is simple: Credential values are never shown on screen. You copy them to clipboard. That's the only way to use them. The clipboard auto-clears after 30 seconds. If you need to visually verify a value — press and hold a button. Release it, the value hides immediately. Not a toggle — a hold. Toggles get forgotten. Holds don't. Technical Decisions Worth Explaining Why Tauri over Electron Tauri uses the operating system's

Introduction When a query runs in ClickHouse®, the database does much more than simply read data and return results. Before execution begins, ClickHouse® parses the SQL statement, analyzes it, applies optimizations, and builds an execution plan that determines the most efficient way to process the query. Understanding query execution plans is one of the most valuable skills for anyone working with ClickHouse®. They provide visibility into how queries are executed, helping you identify bottlenecks, validate optimization efforts, and troubleshoot performance issues. In this article, we'll explore how ClickHouse® generates execution plans, the different EXPLAIN modes, and how to interpret them for better query optimization. Why Query Execution Plans Matter A SQL query defines what data you want, but it doesn't explain how the database retrieves it. Consider the following query: SELECT country , count () FROM events GROUP BY country ; Although the query looks simple, ClickHouse® must determine: Which data parts to read Whether primary indexes can reduce the scan If data skipping indexes can be used How aggregation should be performed Whether parallel execution is possible How intermediate results should be merged A query execution plan provides answers to these questions, making it an essential tool for performance tuning. The ClickHouse Query Lifecycle Every query passes through several stages before producing results. The lifecycle typically looks like this: SQL Query │ ▼ Parser │ ▼ Analyzer │ ▼ Optimizer │ ▼ Query Plan │ ▼ Execution Pipeline │ ▼ Results Each stage plays an important role: Parser validates SQL syntax. Analyzer resolves tables, columns, and expressions. Optimizer applies query optimizations. Query Plan determines the logical execution steps. Pipeline distributes work across multiple threads. Execution processes the data and returns the results. Understanding this workflow makes execution plans much easier to interpret. Introducing the EXPLAIN Statement

I applied to a YC W25 startup the normal way. Filled out the form, wrote a decent cover letter, hit submit. Silence. While waiting, I found their open-source repo on GitHub. Read through the codebase out of genuine curiosity I wanted to understand what they were actually building. Found a bug. Fixed it. Opened a PR. It got merged in 2 days. They still hadn't replied to my application. Here's what that taught me about job hunting in 2025: A cover letter tells someone what you claim you can do. A merged PR shows them. One of those gets read. The other gets filed under "maybe later" -which is just "no" with extra steps. I'm not saying cold applications are dead. I'm saying they're the last resort, not the first move. If a company has a public repo, you have a backdoor that most applicants don't even think to try. Read the code deep and find something small but real. Fix it and Open a PR. Now you're not a stranger in their inbox you're someone who already ships for them. The reply came eventually, by the way. But by then, the maintainers already knew my GitHub handle. That matters more than you think. Have you ever landed something through a contribution instead of an application? Drop it in the comments curious how many people have done this.

This is the third piece in a sequence. The first asked whether Sloan had flagged anyone else — it...

Climate.us has now restored everything taken down by the government.

Everything is expensive. Treat yourself to one of these WIRED-tested and -approved Prime Day picks under $30.

Public notice of a single "compassionate use" case is odd in every way.

GitHub热门项目 | Open source Granola AI Alternative | Stars: 8,694 | 51 stars this week | 语言: Rust

GitHub热门项目 | Instant, Concurrent, Secure & Lightweight Sandbox for AI Agents. | Stars: 6,458 | 22 stars today | 语言: Rust

GitHub热门项目 | Generate any location from the real world in Minecraft with a high level of detail. | Stars: 16,200 | 44 stars today | 语言: Rust

GitHub热门项目 | A GPU-accelerated cross-platform terminal emulator and multiplexer written by @wez and implemented in Rust | Stars: 26,821 | 56 stars today | 语言: Rust

At 9PM ET on the night of May 28th, a Blue Origin New Glenn rocket sat on the launchpad at the Cape Canaveral Space Force Station. The craft was in the middle of a hot-fire test awaiting the arrival of Amazon Leo satellites, the first of 24 batches to be shuttled into low Earth orbit […]

“I deleted it as a test and it came immediately back,” says one government employee.

What Are the 36 Stratagems? If you've heard of The Art of War, think of the Thirty-Six...

I've been using DEV.to for a while, and one area that often feels inconsistent is the notification...

Everything is expensive. Treat yourself to one of these WIRED-tested and -approved Prime Day picks under $30.

Welcome to this week's Top 7, where the DEV editorial team handpicks their favorite posts from the...