Tech Dev Mantra
Build, ship, and choose better software.
Your ultimate resource for development guides, technical insights, and honest reviews.
Claude Code's Weekly Limits Go Up 25% and Down 17% on September 14
Both of Anthropic's numbers are correct. Which one you feel depends on your baseline. Here is the arithmetic, and what to change before the 14th.
Docker vs Podman: A Hands-On Comparison and Migration
Docker vs Podman on one real Linux box: daemonless and rootless by default, the bind-mount ownership and privileged-port differences, running the same Compose file with podman-compose, and rootless systemd with Quadlet. Real captured output, plus a migration checklist.
Live
Latest News
Claude Code's Weekly Limits Go Up 25% and Down 17% on September 14
Both of Anthropic's numbers are correct. Which one you feel depends on your baseline. Here is the arithmetic, and what to change before the 14th.
GitHub's HydraFusion Beats Claude Opus 5 on One Benchmark of Three
HydraFusion landed in Copilot CLI on September 4 as a research preview. The headline is frontier quality. The benchmark table says the real story is cost.
September 2026 Patch Tuesday: The Dev-Machine CVEs Windows Update Won't Fix
Two GitHub Copilot and VS Code flaws, an MSAL for Node.js bug, and an Azure CLI RCE all landed on September 8. None of them are fixed by Windows Update.
Gemini 3.7 Flash Goes Half-Price as Alibaba Open-Sources a 2.4T Model
Gemini 3.7 Flash's half-price launch and Alibaba's open 2.4T Qwen3.8 look like a value-tier win, but the discount expires January 1 and the open model needs 72 GPUs. Read the catches.
Two Critical Next.js RCE Bugs Are Patched in 16.3.3 and 15.5.24
Vercel shipped an emergency Next.js release fixing two critical unauthenticated RCE bugs, a Windows path traversal and an AVIF image flaw. Self-hosters, upgrade to 16.3.3 or 15.5.24 now.
Everyone Feels Faster With AI. Almost Nobody Can Prove It.
84% of developers feel more productive with AI. Only 20% of their organizations measure whether it's true. That gap between feeling and evidence is becoming a business problem.
Guides
Docker vs Podman: A Hands-On Comparison and Migration
Docker vs Podman on one real Linux box: daemonless and rootless by default, the bind-mount ownership and privileged-port differences, running the same Compose file with podman-compose, and rootless systemd with Quadlet. Real captured output, plus a migration checklist.
Docker Images vs Containers, Explained
Confused by Docker images versus containers? An image is the read-only template; a container is a running copy of it. See it proven with real output: one image, three containers, each with its own writable layer, plus what image layers actually are.
Fix: Permission Denied on the Docker Daemon Socket
Got 'permission denied while trying to connect to the Docker daemon socket' on Linux? Here is why it happens, the one-line fix to keep working now, the permanent docker-group fix, and the insecure chmod you should never copy. Real captured output.
Docker Security Basics: Non-Root, Read-Only, Image Scanning, and Secrets
Harden a Docker container without breaking it: scan for CVEs with Trivy, run as non-root, make the root filesystem read-only, drop Linux capabilities, and keep secrets out of the image. Real captured output.
Operating Containers: Healthchecks, Resource Limits, Restart Policies, and Env Config
Make Docker containers behave in production: healthchecks and health-gated startup, memory and CPU limits (and the OOM exit 137), restart policies that self-heal, and clean env config. Real captured output.
Where Your Data Lives: Docker Volumes, Bind Mounts, and Networks
Make container data survive restarts and let containers talk to each other: named volumes vs bind mounts, backing up and restoring a volume, and user-defined networks with DNS by name. Real captured output.
From the Blog
Run TypeScript Directly in Node.js: Type Stripping and the One Big Catch
Node.js 24 runs TypeScript directly, no ts-node and no build step, via type stripping. The catch is it erases types rather than checking them. Here is the safe workflow.
TypeScript 7.0's Go Compiler: What Changed and How to Adopt It
TypeScript 7.0 is a native Go port of the compiler, 8 to 12 times faster with no new syntax. Here is what changes, the tooling caveats, and how to roll it out in stages.
The State of AI-Generated Code in 2026: Adoption Soars, Security Lags
AI now generates much of the world's new code and adoption is near-universal, but roughly 44% of AI-generated code carries a security vulnerability, and the EU AI Act's biggest deadline just landed.
The best of Tech Dev Mantra, in your inbox
Weekly guides, honest reviews, and the developer news that matters. No spam — unsubscribe anytime.