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Top Articles of the Day | 21-Apr-2026

Read the best articles of today, from around the globe, curated at one place for you!

AI & Data

Pick #1
ClickHouse Native JSON Support in 2026: A PR-by-PR Analysis
Dev.to 24 min read 6 reactions

TL;DR ClickHouse has full native JSON support, and has since v25.3. The JSON type stores...

Pick #2
AI Gateway Caching Explained — Why L1 + L2 Cache Layers Cut 90% of Your LLM Bill
Dev.to 6 min read 5 reactions

Most devs using OpenRouter or Portkey get only half the possible caching savings. Here's the two-layer architecture that cuts real LLM costs 50-60% in production.

Pick #3
How to Govern Claude Code Usage Across Engineering Teams
Dev.to 5 min read 5 reactions

Claude Code is powerful; maybe too powerful to run without guardrails. I came across a case where a...

Product

Pick #1
I Asked AI to Review Its Own Code. It Gave Itself 10/10.
Dev.to 5 min read 14 reactions

I ran a simple experiment yesterday. I asked AI to write a function. Then I asked the same AI to...

Pick #2
Corporate Amnesia: What Happens When Your Team Forgets How Its Own Code Works
Dev.to 5 min read 12 reactions

A few months ago, we had to change a small piece of logic. It sounded simple. A minor...

Pick #3
Built a 5k usd MRR app with AI but still needed a developer
Dev.to 4 min read 14 reactions

You see it everywhere you turn: "I built this using just AI and im making 10K USD MRR" "Just got...

Programming

Pick #1
Kimi K2.6: Advancing open-source coding
Hacker News 6 min read 669 points

Kimi K2.6 advances open-source coding, featuring long-horizon coding, coding-driven design, agent swarms, proactive agents, and the Claw Groups research preview.

Pick #2
I tried to build a personal SaaS with zero backend. Here's where that strategy hits a wall.
Dev.to 6 min read 2 reactions

I track my overtime in a spreadsheet. Or I did, until I lost three months of data because my formula...

Pick #3
Serverless by Design - Building an Analytics Platform on Cloudflare
Dev.to 6 min read 2 reactions

In 2023, I published a blog post titled My journey to the world of social networks, where I shared my...

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