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The Practical Developer
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Latest posts
Last updated 9 minutes ago
Ruby のブロックと yield を一番簡単な例で
24 minutes ago
Ruby を書いていると必ず出てくる「ブロック」と「yield」。 難しく見えますが、要は 「処理を渡す」「渡された処理を実行する」 だけです。 ブロックとは メソッドに渡す「処理のかたまり（コードの切れ端）」 のこと。 { } か do...end...
GPT-6 Astra Shipped With Its Zero-Day Skill Behind a Gate. Here's What 'Gated Capability' Means for the Rest of Us.
20 minutes ago
GPT-6 Astra shipped on September 3, and it arrived with an asterisk...
I Removed the Wake Word from AI — Here's What I Learned
30 minutes ago
The Question That Started It All Every AI you use today needs...
If You Understand These 5 AI Terms, You're Ahead of 90% of People
25 minutes ago
A few months back I sat in a meeting where someone said...
Why your table export only has the rows you can see
about 1 hour ago
The table says 2,431 rows. You export it and get 50. Nothing...
Host Sleep Is Not Job Cancel: Dual-Residency Resume for Local Agents
about 1 hour ago
A backend engineer closed a laptop lid on a crowded commuter train...
FlatBB 0.1.70: points move into the core
about 1 hour ago
FlatBB 0.1.70 (2026-09-09) turns community points into a first-class core feature —...
FFMPEG to the rescue, again
about 1 hour ago
LinkedIn is going to be one of my direct integrations, if it's...
The Redirect Chain That Bypasses Your Ad Blocker
43 minutes ago
The Problem with Static Blocklists Malicious ads on Google Ads rarely land...
Wabe Labs Is Born, and Building With Blueprints
41 minutes ago
Entering the third week of my startup adventure has been a deeply...
Shipping AI-Generated Features as Stacked PRs: A Complete Spec Kit + gh stack Tutorial
about 1 hour ago
A step-by-step guide to pairing spec-driven development with stacked pull requests —...
5 Verbal Corrections Didn't Stick, So a 46-Line Stop Hook Made the Mistake Physically Impossible
about 1 hour ago
I corrected the same Claude Code mistake more than five times. It...