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Tag: Backend

Bug Fixing, Development, E-commerce Development

Running a chi-square test on your WooCommerce A/B data

A plugin showing a green arrow is not proof that a variant won. This post walks through a 2×2 chi-square test in PHP: expected counts, degrees of freedom, the 3.84 cutoff at p=0.05, and the four assumptions that break the result.

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AI, AI in WordPress, Development

PyTorch distributed operations: where multi-GPU training stalls

Notes on PyTorch distributed operations: what NCCL is doing under the hood, why synchronous and asynchronous do not mean what you would guess, and how a missing wait call hangs a rank forever.

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Bug Fixing, Development, E-commerce Development

WooCommerce testing tools and the March core team office hours

WooCommerce core devs Greg Bell and Lance Willet are running an open office hours session on testing on March 4, 2026. What to test before you ship, and what to ask them on Slack.

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AI, Development

What the ML engineer role looks like past the AI hype

Stephanie Kirmer, a staff ML engineer, on why the job leans on sociology as much as modeling, how code assistants took over the boilerplate, and why $200 billion of AI investment looks out of proportion to what the tech does today.

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Development

Tmux terminal multiplexer basics for agentic workflows

Tmux keeps your sessions alive when the connection drops. Sessions, windows and panes, the prefix shortcuts worth memorizing, a starter .tmux.conf, and why agents like Claude Code run on top of it.

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AI, Development

Nvidia’s TiDAR and the LLM inference bottleneck

GPUs sit idle during text generation because model weights move slower than the math runs. Nvidia’s TiDAR drafts tokens with diffusion and verifies them in one parallel pass, reaching up to 5.91x speedup on an 8B parameter model.

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Core Updates, Development, E-commerce Development

WooCommerce 10.7 turns off HPOS sync on read

From April 14, WooCommerce 10.7 ships with HPOS sync on read disabled. Custom code that edits orders through update_post_meta or raw SQL stops reaching the HPOS tables, so it needs moving to the CRUD API. There is a filter to buy time, but only that.

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Core Updates, Development, E-commerce Development

WooCommerce 10.5 performance: what actually got faster

WooCommerce 10.5 moves the analytics import onto a schedule and processes orders in batches of 100. Notes on the new experimental caching flags, the wp_options autoload update, and what I would test on staging before shipping it.

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Development

Snake game in Python: reverse loops and tracer(0)

The snake game is a small project with one genuinely tricky part: moving a chain of segments so the body follows the head. Here is the reverse loop that does it, plus why tracer(0) matters when you build it with turtle.

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Development

3 machine learning lessons that changed how I pace my week

ML research runs on a cycle of downtime, flow and hard deadlines. After 14 years of WordPress work I started copying that rhythm, and it did more for code quality than any productivity hack I had tried.

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