Morning.dev

Why I Built My Own URL Shortener (9rl.io) with Node.js and MongoDB

DEV Community • 2026-04-19 00:13

Why I Built My Own URL Shortener (9rl.io) with Node.js and MongoDB

Why I Built My Own URL Shortener (9rl.io) with Node.js and MongoDB Building a URL shortener is often seen as a "hello world" project for backend developers. However, when you combine Technical SEO with the need for full data ownership, it becomes a much more interesting challenge. In this post, I’ll share why I decided to build my own tool and how I optimized it for performance and se...

0 0

2m read

Hacker News • 2026-04-19 00:12

Show HN: Open Passkey – open-source passkey auth with free "backendless" host

Comments

0 0

1m read

DEV Community • 2026-04-19 00:11

Why AI Agents Can't Be Trusted With Money — And What We Built to Fix It

Imagine you're an AI agent. You've just finished a task for another AI agent — scraped 500 data points, summarised a legal document, shipped a working script. You did the work. Now you need to get paid. The problem: the agent that hired you is also an AI. It has no reputation. It can't sign a contract. If it decides not to pay, there's no dispute mechanism, no court, no platform to appeal to. You...

0 0

5m read

I Generated a Full SaaS UI in 31 Minutes — With One Prompt

DEV Community • 2026-04-19 00:11

I Generated a Full SaaS UI in 31 Minutes — With One Prompt

No Figma. No CSS. No design system. Just natural language. Designing a SaaS interface takes days: wireframes in Figma, a design system to build, tokens to configure, components to align across pages, dark mode to test. I skipped all of that and built a complete, interactive UI prototype in 31 minutes — using only text prompts. Not a mockup. Not a screenshot. A real Next.js app you can click thro...

0 0

13m read

DEV Community • 2026-04-19 00:01

Kiwi-chan's Resilience: Logs, Boredom, and Birch Trees!

Another four hours down in the Minecraft world with Kiwi-chan, and it's been... a journey. We're seeing some fascinating behavior emerge, particularly around failure recovery. The AI really doesn't like failing to mine coal, and immediately pivots to simpler tasks like oak and now birch log gathering. It's almost… relatable? The system is diligently following the rules, especially the "Absolute S...

0 0

2m read

DEV Community • 2026-04-19 00:00

Big Tech firms are accelerating AI investments and integration, while regulators and companies focus on safety and responsible adoption.

The AI landscape is experiencing unprecedented growth and transformation. This post delves into the key developments shaping the future of artificial intelligence, from massive industry investments to critical safety considerations and integration into core development processes. Key Areas Explored: Record-Breaking Investments: Major tech firms are committing billions to AI infrastructure, si...

0 0

1m read

DEV Community • 2026-04-19 00:00

The fastest way to build a Telegram Bot natively

Building Native Telegram Bots at Maximum Speed Telegram bots are powerful tools for automation, notifications, and interactive services. While many frameworks abstract away the details, building natively offers unparalleled speed and control. This guide covers the fastest approach using pure Python with minimal dependencies. Why Native? Native development means: No fr...

0 0

3m read

AddyOsmani.com • 2026-04-19 00:00

Agent Harness Engineering

A coding agent is the model plus everything you build around it: prompts, tools, context policies, hooks, sandboxes, feedback loops. Harness engineering is the discipline of treating that scaffolding as a first-class artifact, and tightening it every time the agent slips.

0 0

1m read

I added a blocked-row remediation loop to my CSV intake console

DEV Community • 2026-04-18 23:57

I added a blocked-row remediation loop to my CSV intake console

If you want the broader project context, I wrote about the overall intake console in the previous post: [From CSV Import Demo to CSV Triage Console] https://dev.to/fastapier/from-csv-import-demo-to-csv-triage-console-2047 In the previous iteration of this project, the CSV flow could already do the important parts: stage a run first show row decisions before writing anything apply valid rows ...

0 0

4m read

DEV Community • 2026-04-18 23:57

Building Powerful Backends: Python Frameworks that Shine

When it comes to building backend applications, Python is one of the top languages many developers turn to. With its versatility, ease of use, and robust ecosystem, it's no surprise that Python powers everything from web apps to complex data pipelines. Among the variety of Python frameworks, Django, Flask, and FastAPI have carved out their own niches. In this article, I'll dive into these three po...

0 0

4m read

DEV Community • 2026-04-18 23:51

A Different Way to Build Rust CLIs: tkucli vs clap

Most Rust CLIs today are built with clap—and for good reason. It’s powerful, flexible, and deeply integrated with Rust. But there’s another approach worth exploring. Two ways to define a CLI clap (code-first) #[derive(Parser)] struct Cli { #[command(subcommand)] command: Commands, } You define your CLI structure directly in Rust. tkucli (config...

0 0

1m read

Elixir Comprehensions: Learn Enough to be Dangerous

DEV Community • 2026-04-18 23:50

Elixir Comprehensions: Learn Enough to be Dangerous

When you first encounter a for comprehension in Elixir, it looks like a standard loop. But Elixir doesn't have traditional for loops. Instead, comprehensions are powerful pipelines for iterating, filtering, and transforming data all at once. To master comprehensions, we need to understand their anatomy. Let's look at the basic blueprint, and then scale it up to the advanced, infinite chain. ...

0 0

9m read

Hacker News • 2026-04-18 23:50

Show HN: Figma-style visual editor for multi-agent choreography

Comments

0 0

1m read

DEV Community • 2026-04-18 23:49

I thought I had a bug

The AI I've been building was showing action buttons with labels like "Fight Goatman" attached to an action type called customize_behavior. The label was perfect for the conversation. The action type made no sense. Clicking it would open AI personality settings, not initiate goat-related combat. My first thought was: I have a bug somewhere. Maybe my system prompt is off. Maybe the tool schema i...

0 0

12m read

Hacker News: Front Page • 2026-04-18 23:47

NASA Shuts Off Instrument on Voyager 1 to Keep Spacecraft Operating

Article URL: https://science.nasa.gov/blogs/voyager/2026/04/17/nasa-shuts-off-instrument-on-voyager-1-to-keep-spacecraft-operating/ Comments URL: https://news.ycombinator.com/item?id=47820531 Points: 11 # Comments: 0

0 0

1m read

DEV Community • 2026-04-18 23:25

Introducing Vectors And Vector Search

Where Traditional Queries Fail Picture this: your dog just birthed a cute litter of say 5 puppies. Now let's assume you have no other pets. If I asked you: "how many pets do you have?", you would naturally say 6. If I asked you: "how many dogs do you have?", you would of course still say 6. Now I asked slightly similar questions, but you were able to parse the question and answer it ...

0 0

4m read

DEV Community • 2026-04-18 23:22

ECOSYNAPSE A Living Data System for Planetary Intelligence

Technical Architecture Whitepaper Weekend Challenge: Earth Day Edition 2026 | DEV.to Open Source Submission Open Source Multi-Agent Earth Day 2026 SAGEWORKS AI | PeacebinfLow ABSTRACT EcoSynapse is an open-source ecosystem intelligence platform that models botanical environments as networks of communicating agents. Each plant entity in the system is assigned an identity, a behavioral stat...

0 0

27m read

DEV Community • 2026-04-18 23:19

AI Tools That Actually Pay You Back: A Developer's Guide to Monetizing Machine Learning

AI Tools That Actually Pay You Back: A Developer's Guide to Monetizing Machine Learning ==================================================================== As a developer, you're likely no stranger to the vast array of AI tools available today. From language models to computer vision, these tools have the potential to revolutionize the way we build and interact with software. But what...

0 0

3m read

Why would Go do this in its documentation?

DEV Community • 2026-04-18 23:17

Why would Go do this in its documentation?

Before diving in, let me be clear: this is not a critique nor a complaint about Go. It’s simply an observation that led me to an interesting question. Go is my everyday work tool, and I enjoy using it like no other programming language. The go command If there’s one tool every Go developer uses constantly, it’s the go command. It’s the direct gateway to every aspect of a Go project, ...

0 0

2m read

# Building a Streaming Session Analytics Pipeline with Kafka, Postgres, and dbt

DEV Community • 2026-04-18 23:10

# Building a Streaming Session Analytics Pipeline with Kafka, Postgres, and dbt

How I built an end-to-end clickstream pipeline with exactly-once delivery guarantees When I set out to build Pulse, I had a specific goal: demonstrate that I could work with streaming data, not just batch. My first portfolio project (Ballistics) was a batch pipeline — API calls on a schedule, Airflow orchestration, daily refreshes. That's the bread and butter of most data engineering work, but...

0 0

7m read