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Bucardo: the replication system for PostgreSQL

29-11-2025 - Andrés Cruz

Bucardo: the replication system for PostgreSQL

Linux As the title for this post specifies, Bucardo is a replication system that in other words allows you to "clone" or "duplicate" records from a Database to other Databases (source-target), also I will show you how to synchronize the sequences of a Postgresql Database using Bucardo.


Asynchronicity Guide in Android: From AsyncTask (Legacy) to Coroutines in Jetpack Compose

25-01-2026 - Andrés Cruz

Asynchronicity Guide in Android: From AsyncTask (Legacy) to Coroutines in Jetpack Compose

Android Master asynchronous programming in Android: from threads and AsyncTask (Legacy) to the powerful Kotlin Coroutines and Jetpack Compose.


Web workers to execute JavaScript in parallel

06-09-2023 - Andrés Cruz

Web workers to execute JavaScript in parallel

JavaScript Web workers allow code sections of JavaScript files to be executed in parallel in a separate thread; In this entry we will see how to work with web workers.


How to use and configure ajax with jQuery? - Updated Examples

24-01-2026 - Andrés Cruz

How to use and configure ajax with jQuery? - Updated Examples

JQuery AJAX is a technology that allows you to create applications that maintain asynchronous and parallel communication with the server, although we can also adapt it to work synchronously and we can improve all this with the help of the AJAX functions.


FutureBuilder, async, await in Flutter, practical example

21-11-2025 - Andrés Cruz

FutureBuilder, async, await in Flutter, practical example

Flutter Today we are going to discuss a misunderstood widget such as FutureBuilder; which at first glance may seem abstract and difficult to use, but it has a very particular use that can help us successfully complete a development that involves an asynchronous process with which, in the end, we want to draw a widget.


How to use Flask-SocketIO to create real-time applications (WebSockets) with Python

13-03-2026 - Andrés Cruz

How to use Flask-SocketIO to create real-time applications (WebSockets) with Python

Flask We will see how to use the rooms in Flask SocketIO that allow us to create groups of full duplex connections for users.


Asynchronous support in Django: when to use it, how it works, and when it's NOT appropriate.

03-01-2026 - Andrés Cruz

Django Discover when to use asynchronous support in Django, the differences between Sync and Async, ASGI vs WSGI, and how to improve your app's actual performance.


Celery: Background Processing in Python: FastAPI Django and Flask

02-03-2026 - Andrés Cruz

Celery: Background Processing in Python: FastAPI Django and Flask

Flask Discover how Celery resolves request blocking using asynchronous job queues. The essential tool for long-running tasks in production environments.