Welcome to HiBit

HMAC, short for Hash-based Message Authentication Code, is a method used to check that a message is both authentic and unmodified. It's a common tool in webhooks, APIs, and any place where secure communication between systems matters. The idea behind HMAC is to use a shared secret key along with a hashing algorithm to create a unique signature for a message. This signature acts like a stamp of trust, if anything changes in the message or if the wrong key is used, the signature won't match.

CQRS, short for Command Query Responsibility Segregation, is a simple yet powerful way to split the responsibility for writing and reading data in an application. Instead of having a single service or model method that both changes and retrieves data, you give commands the job of making changes and queries the job of fetching information. This split can make large projects much easier to follow, especially as business rules grow and read and write requirements start to differ.

The DS18B20 is a digital temperature sensor that comes in two versions: a small TO-92 package, and a waterproof variant often encased in a metal tube with a long cable. Both provide digital temperature readings and can be used in many indoor and outdoor projects. The DS18B20 uses a protocol called 1-Wire, which only needs one data line to communicate and can support multiple sensors on the same pin.

Nginx is a powerful and lightweight web server that's commonly used to serve websites and static content. If you're running several websites on a single machine, configuring Nginx to manage them properly is efficient and straightforward. This article walks you through installing Nginx, setting up multiple sites, configuring firewall access, and organizing your folders and logs in a clean and practical way.

When working on simple Arduino projects that need basic navigation or input, the AD keyboard module is a handy little tool. It's a 5-button unit that behaves like a directional pad, with four arrow-style buttons and one additional button. It doesn't require any soldering or setup, which makes it a practical choice for prototyping or small projects. You can plug it in and start using it right away, thanks to its three-pin layout and built-in resistors.

Setting up a MySQL 8 server can seem complicated at first, but with a clear and structured approach, the process becomes much more manageable. This guide explains how to install MySQL 8 on Debian-based systems, configure it to accept remote connections, and test that it is running correctly. The instructions are practical and direct, suitable for environments that require reliable and straightforward configuration.

Modern web frameworks teach you to take one group of related concepts and split it across multiple places throughout your codebase. Laravel is a robust framework with a big community behind it. Usually it's standard structure is enough for most starting projects.

Building scalable applications, instead, requires a different approach. Have you ever heard from a client to work on controllers or review the models folder? Probably never - they ask you to work on invoicing, clients management or users. These concept groups are called domains.

Composer is an application-level package manager for the PHP programming language that provides a standard format for managing dependencies of PHP software and required libraries. It manages them on a per-project basis, installing them in a directory (e.g. vendor) inside your project.

PHP is a scripting language widely used for web development, with code processed on a web server through a PHP interpreter, implemented as a module, daemon, or CGI executable. Nginx lacks the default ability to handle dynamic web pages with PHP and requires specific additional plugins for this purpose. One such plugin is FPM (FastCGI Process Manager), an alternative PHP FastCGI implementation offering additional features, particularly advantageous for high-traffic sites. FPM stands out as the preferred method for PHP page processing with Nginx, surpassing traditional CGI-based methods in terms of speed.