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14 guides · 210 practical entriesPHP
Build reliable server-side pages, APIs, and database tools.
Open guide →02 / 26 entriesPython
Write small scripts, process data, and inspect systems safely.
Open guide →03 / 19 entriesBash / Linux
Navigate, inspect files, write scripts, and diagnose a Linux host.
Open guide →04 / 19 entriesSQL · MariaDB / MySQL
Query, change, and back up relational data with dialect details made explicit.
Open guide →05 / 19 entriesSQL · PostgreSQL
Learn PostgreSQL queries, psql, transactions, and logical backups.
Open guide →06 / 22 entriesJavaScript
Add browser behavior with small, understandable examples.
Open guide →07 / 20 entriesTypeScript
Learn JavaScript control flow with types, interfaces, and compile-time checks.
Open guide →08 / 8 entriesHTML
Give pages meaningful structure, navigation, and accessible forms.
Open guide →09 / 8 entriesCSS
Build readable layouts that work on small screens and keyboards.
Open guide →10 / 8 entriesApache
Inspect configuration, understand virtual hosts, and make careful service changes.
Open guide →11 / 8 entriessystemd
Read service state, inspect logs, and understand units and timers.
Open guide →12 / 8 entriesGit / GitHub
Inspect changes, make focused commits, and use branches and pull requests.
Open guide →13 / 9 entriesCloudflare
Understand DNS, proxying, TLS, caching, and Tunnel troubleshooting.
Open guide →14 / 10 entriesWordPress / WP-CLI
Inspect a WordPress installation and practice careful maintenance.
Open guide →Read before you run
These educational examples can be adapted to your own projects. Demo hosts, users, paths, and records are placeholders. Check your version, permissions, and target first. Code copy buttons copy text only.
Warnings identify deletion, overwritten files, service interruptions, and other state changes. Configuration examples must be adapted and validated before use.
Technical examples reviewed against the linked project documentation on . Documentation & scope →