Writing

Deploy multi-container applications to Docker Swarm using stacks. Covers Swarm init, docker context for remote deployment, secrets, scaling, rollbacks, and secure deploy user setup.

A comprehensive guide to setting up a vps server

A practical Git reference covering setup, commits, branches, remotes, stash, rebase, cherry-pick, and the most important commands for everyday development.

Learn how to read bundled data files (images, configs, templates) from a Python package stored as a ZIP archive, using both pkg_resources and the modern importlib.resources API.

Google Apps Script web apps have long, opaque URLs. Learn how to embed your script app in your own website using an iframe with the ALLOWALL X-Frame-Options mode.

Explore the various types of operators in Python programming.

A comprehensive guide to automate email sending directly from Google Sheets using Google Apps Script.

Learn to build a REST API with Django REST Framework: models, serializers, ViewSets, and URL routing — using a TodoList app as the working example.

Use Python's built-in functools.lru_cache to cache expensive function results in memory, with optional TTL expiry — no external libraries needed.

A comprehensive guide to capturing HTTP and HTTPS requests using a non-rooted Android device with Charles Proxy.

A practical Bash scripting reference covering variables, conditionals, loops, functions, arrays, string operations, error handling, and script structure with working examples.

Essential Docker commands and tips compiled in a handy cheatsheet.

An in-depth tutorial on using Nuitka to compile Python scripts into executables.

Explore the basics of crontab on Linux OS, including scheduling tasks and troubleshooting common issues.

Step-by-step instructions for deploying a Django application on a VPS using Ubuntu 18.04, including security, software setup, and domain configuration.

Learn about strings in Python, covering everything from basic syntax to advanced operations.

A practical npm reference covering package installation, versioning, scripts, security auditing, global vs local packages, and modern npm features like npx and workspaces.

A practical SSH reference covering connections, key-based auth, SCP file transfer, SSH config file, agent forwarding, security hardening, and GitHub integration.

A complete VSCode reference: essential keyboard shortcuts for macOS and Windows/Linux, must-have extensions, settings, multi-cursor editing, and the integrated terminal.

Learn how to configure HTTPS redirect on a MikroTik Hotspot to ensure secure and seamless client redirection.

Set up your Raspberry Pi as an OpenVPN client that routes all connected devices through a VPN tunnel, with persistent iptables rules and NAT configuration.

Learn how to schedule tasks using GitHub Actions with cron jobs.

Learn how to create and publish your own Jekyll theme with this step-by-step guide, covering installation, development, testing, and going live.

Learn how to build your own programming language with Python using SLY for lexical analysis and parsing.

A step-by-step guide to deploying a Django application on Heroku with a PostgreSQL database, including production settings, static files, and environment variable configuration.

Learn how to set up Wordpress, MySQL, and phpMyAdmin using Docker with a single command.

Implement over-the-air (OTA) firmware updates for ESP32/ESP8266 running MicroPython using a Flask server. Covers the server setup, device-side update script, and applying the new firmware.

A practical reference for the Django manage.py commands you use every day: runserver, migrations, shell, testing, static files, and more.

Explore crucial .htaccess tips including URL rewriting, SEO optimization, security enhancements, and more.

Learn about Python generators, their functionality, and usage with examples.

Learn how to customize a Tkinter window title bar and show a progress bar while downloading a file.

An in-depth guide to understanding variables and object-oriented programming terminology in Python.

Learn how to resolve time synchronization issues when dual booting between Windows and Linux.

LXD provides lightweight Linux containers that behave like full VMs but share the host kernel. Learn to install, configure, launch, manage, and snapshot containers with LXD.

A comprehensive guide to programming the ESP8266 using MicroPython.

An in-depth guide to beginning your journey with Python programming, covering history, key features, comparisons between Python 2 and 3, and installation processes.

Learn to automate browsers with Selenium 4 in Python: setup, locating elements with the modern By syntax, waiting strategies, handling dropdowns, iframes, cookies, and mobile emulation.

BerryBoot lets you run multiple operating systems from a single SD card on your Raspberry Pi. This guide covers standard and headless installation, and setting up a local OS repository.

Practical C# snippets for WinForms rounded windows, ZIP file handling, file I/O, async HTTP requests, string operations, and LINQ — ready to copy into your projects.

Three practical approaches to activating a Python virtual environment without user interaction: shebang lines, bash wrappers, and subprocess calls.

Add a right-click 'Publish to GitHub' option to Windows Explorer. When you right-click a folder, a Python script initializes a Git repo and pushes it to a new GitHub repo via SSH.

A comprehensive guide to setting up a script or program to run automatically on system startup.

A step-by-step guide to generating and using SSH key pairs on Raspberry Pi running Ubuntu.

Python's tempfile module creates temporary files and directories that clean up automatically. Learn TemporaryDirectory, NamedTemporaryFile, mkstemp, and when to use each.

Webmin is a web-based control panel for Linux administration. Learn how to install it on Raspberry Pi running Ubuntu and access it securely from your browser.

Learn how to obfuscate Python source code using PyArmor for code protection and licensing.

Learn how to safely reset iptables to a permissive default state, flush specific chains, save and restore rules, and understand when to use nftables or UFW instead.

Learn how to send emails with Python through Gmail, covering authentication and SMTP setup.

Run Home Assistant in Docker using Docker Compose. Covers the Compose file, host networking requirement, persistent config volumes, and accessing the dashboard.

A comprehensive guide on installing and configuring Nginx on a Raspberry Pi running Ubuntu.

Learn how to configure the Python embeddable distribution on Windows with this step-by-step guide.

Set up your own private cloud storage with Nextcloud on a Raspberry Pi using Docker. Covers quick start, persistent volumes, PostgreSQL backend, and Docker Compose setup.

Explore the basic syntax of Python programming, including execution modes, print function, identifiers, and more.

A complete guide to Python's conditional statements: if, elif, else, ternary expressions, truthy/falsy values, chained comparisons, and pattern matching with match/case.

A practical GitHub guide covering repositories, pull requests, code review, branch protection, GitHub Actions CI/CD, GitHub Pages, and collaboration best practices.

A comprehensive guide to effectively using the logging module in Python for error tracking and analysis.

Explore the essential Markdown syntax and discover how it integrates with HTML elements in Hugo.

Pipenv combines pip and virtualenv into a single workflow. Learn how to manage Python project dependencies, lock files, dev packages, and virtual environments with Pipenv.

A detailed guide on SSH tunneling options and configurations for efficient port forwarding.

A comprehensive guide to using SSH tunneling with AutoSSH for robust and persistent connections.

A comprehensive guide to effectively using the screen command in Linux terminals.

Python's zipapp module bundles a directory of Python code into a single executable .pyz file. Learn how to create, run, and distribute Python apps without a full installer.

A comprehensive guide to setting up ad blocking across your network using Pi-hole on a Raspberry Pi.

Practical MicroPython optimization techniques: profiling with timed decorators, const(), local variable caching, .mpy bytecode, frozen modules, avoiding allocations, and using native/viper code emitters.

Learn how to set up and manage Docker on a Raspberry Pi, including installation, Docker Compose, and popular Docker projects.

Learn how to run Linux GUI apps on Windows 10 using Windows Subsystem for Linux 2 with a shortcut.

A comprehensive guide to setting up a DNS server on Raspberry Pi using DNSmasq for improved network performance.

Install FreeRADIUS on Linux to provide centralized network authentication. Configure a client (router/access point), add users, test with radtest, and harden for production use.

Install a full LAMP stack (Linux, Apache, MariaDB, PHP) on a Raspberry Pi running Ubuntu, then deploy WordPress — step by step from package installation to a working site.

Learn how to configure an Nginx Docker container to balance load across multiple application instances.

Set up Cockpit for web-based Raspberry Pi management and Samba for network file sharing. Includes proper Samba user authentication and access from Windows, macOS, and Linux.

Learn how to create a secure and reliable reverse SSH tunnel with port forwarding, offering an alternative to ngrok.

A step-by-step guide to configuring Cloudflare Tunnel for SSH access on a Raspberry Pi.

Install TightVNC on a Raspberry Pi running Ubuntu, configure a GNOME desktop session, run VNC as a systemd service, and connect securely over an SSH tunnel.

Learn about exception handling in Python, including try, except, else, and finally blocks.

functools.reduce applies a two-argument function cumulatively to reduce a sequence to a single value. Learn how it works, when to use it, and when to reach for simpler alternatives.

Explore how iterators and the iter() function work in Python with examples and explanations.

An overview of data types in Python, including scalar, sequence, mapping, and set types.

Dive into Python's magic methods with examples and explanations.

Dive into the world of numbers in Python, including integer, float, and complex types.

Python's contextlib module provides utilities for creating and working with context managers: @contextmanager, closing(), suppress(), redirect_stdout, and ExitStack.

Exploring the filter() function in Python with examples.

Explore the concept of recursion in Python with examples, including the calculation of factorials.

Consistent JSON API response formats make integration easier. Learn the JSend convention, HTTP status code mapping, pagination patterns, and structured error objects used in production APIs.

A comprehensive guide to using the map() function in Python with examples.

A practical guide to lesser-known Windows tricks: hiding files inside images, running batch scripts silently, managing startup folders, bulk renaming files from CMD, creating undeletable folders using reserved names, and leveraging NTFS Alternate Data Streams.