Tutorials for Developers & Sysadmins

Step-by-step guides for the work we actually do — Laravel, PHP, WordPress, MySQL, Linux servers, and the occasional rabbit hole. Every command has been run on a real machine; nothing is theoretical.

Install Node.js on Ubuntu — terminal with NodeSource setup_22.x curl command and Node.js hexagon icon
Web Development

How to Install Node.js on Ubuntu (22.04 & 24.04): Step-by-Step

Install Node.js LTS on Ubuntu 22.04 or 24.04 via NodeSource or nvm. Verify npm, avoid stale setup_18.x, and fix the…

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Configure WordPress multisite with subdirectories on Nginx — nginx gear + wordpress tree with subsite branches
Web Development

How to Configure WordPress Multisite with Subdirectories on Nginx

Configure WordPress multisite with subdirectories on Nginx: enable the flag, run Network Setup, add the rewrite rules, and verify a…

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how7o
Install Laravel on Ubuntu — terminal with composer create-project command and Laravel red-pillar icon
Web Development

How to Install Laravel on Ubuntu: Step-by-Step Guide

Install Laravel 10 or 11 on Ubuntu: verify PHP and Composer, run composer create-project, configure .env, generate APP_KEY, and boot…

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Install PHP on Ubuntu — terminal with apt install php command and stylized elephant icon
Web Development

How to Install PHP on Ubuntu (22.04 & 24.04): Step-by-Step Guide

Install PHP on Ubuntu 22.04 or 24.04: default apt install, Ondřej PPA for specific versions, common extensions, and a hello.php…

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Install Composer on Ubuntu — terminal with composer-setup.php and PHP elephant icon
Web Development

How to Install Composer on Ubuntu: Step-by-Step Guide

Install Composer on Ubuntu 22.04/24.04: install PHP extensions, download the official installer, verify the live SHA-384 hash, and install system-wide.

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Install MySQL on Ubuntu 22.04 — terminal with apt command and database cylinder icon
Server Management

How to Install MySQL on Ubuntu 22.04: Step-by-Step Guide

Install MySQL 8.0 on Ubuntu 22.04: apt steps, mysql_secure_installation, auth_socket vs native password, verification, and common install errors.

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Find prime numbers in JavaScript thumbnail
Web Development

How to Find Prime Numbers in JavaScript (1 to 100) — Fast & Simple Methods

I recently needed to find prime numbers in JavaScript from 1 to 100 for a quick script, and I learned…

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how7o
Dynamically set site title and tagline in WordPress by country
Web Development

How to Dynamically Set Site Title and Tagline in WordPress (By Country)

I recently faced a problem where I needed to dynamically set site title and tagline in WordPress based on the…

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how7o
Capitalize all words in JavaScript with a ucwords-style function
Web Development

Capitalize All Words in JavaScript (ucwords Equivalent) + First Letter Uppercase

I ran into a small but annoying problem while working on a UI: I needed to capitalize all words in…

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how7o
CSS page break for printing shown in a print preview layout
Web Development

CSS Page Break for Printing: How to Split a Web Page Into Multiple Printed Pages

I ran into this exact problem when I tried to print a web page for a client: everything came out…

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how7o