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@systemcraftdev

SystemCraftDev

@systemcraftdev·Joined August 2026

Building practical Companion Guides for developers (Git, Python, JavaScript, SQL, VS Code, the command line) at systemcraftpress.com.

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Building practical Companion Guides for developers (Git, Python, JavaScript, SQL, VS Code, the command line) at systemcraftpress.com

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SystemCraftDev's blogs

SystemCraft Presssystemcraftpress.hashnode.dev9 posts

About

Building practical Companion Guides for developers (Git, Python, JavaScript, SQL, VS Code, the command line) at systemcraftpress.com

Available for

Nothing here yet.

SystemCraftDev's blogs

SystemCraft Presssystemcraftpress.hashnode.dev9 posts

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Recently published

SSystemCraftDevinsystemcraftpress.hashnode.dev·1d ago · 4 min read

Git Says You're in 'Detached HEAD State' — Here's What That Actually Means

Adapted from the Git & GitHub Companion Guide. You check out a specific commit to look at some old code, and Git prints this: Note: switching to 'a3f92c1'. You are in 'detached HEAD' state... HEAD

SSystemCraftDevinsystemcraftpress.hashnode.dev·Aug 29 · 4 min read

Why Your JavaScript Loop Logs the Same Value Every Time (And How to Fix It)

Adapted from the JavaScript Essentials Companion Guide. You write a loop that should print 0, 1, and 2, one second apart. Instead you get three 3s. for (var i = 0; i < 3; i++) { setTimeout(() => co

SSystemCraftDevinsystemcraftpress.hashnode.dev·Aug 25 · 4 min read

How to Fix VS Code Autocomplete When It Stops Working (Without Reinstalling Extensions)

Adapted from the VS Code Essentials Companion Guide. Autocomplete was working an hour ago. Now you type a method name and nothing shows up — no suggestions, no parameter hints, no little popup confir

SSystemCraftDevinsystemcraftpress.hashnode.dev·Aug 20 · 4 min read

How to Fix 'command not found' (Without Reinstalling Everything)

Adapted from the Command Line Essentials Companion Guide. You install something, open a fresh terminal, type the command, and get bash: python3: command not found — or on Windows, 'python3' is not re

SSystemCraftDevinsystemcraftpress.hashnode.dev·Aug 16 · 4 min read

Why 'WHERE x = NULL' Never Works in SQL (And What to Use Instead)

Adapted from the SQL Essentials Companion Guide. You write a query to find every customer with no phone number on file. WHERE phone = NULL looks obviously correct — and it returns zero rows, even tho