rbw-env: Export environment variables from Bitwarden

Posted on Thu, 26 Mar 2026 in Tools • Tagged with bitwarden, cli, environment, productivity, security

Using rbw to export environment variables from Bitwarden, useful for setting API keys securely without storing them on disk.


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Crit: The Review Loop for Agents

Posted on Sun, 22 Mar 2026 in Programación • Tagged with ai, agents, review, opencode, productivity

Crit is a tool designed to close the code review loop for AI-generated code, providing an intuitive and efficient web interface.


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Hidden gems in pi-powerline-footer

Posted on Sun, 22 Mar 2026 in DevOps • Tagged with pi, terminal, productivity

Two features of the pi-powerline-footer plugin that go beyond the typical footer with model information.


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Agent Browser: Browser Navigation for AI Agents

Posted on Wed, 18 Mar 2026 in Tools • Tagged with agent-browser, ai, agents, automation, llm, pi-agent

agent-browser is a tool from Vercel that allows AI agents to navigate the web and perform actions just like a human would, easily integrating with agent frameworks.


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Tailscale Aperture: AI Gateway Without Distributing API Keys

Posted on Mon, 16 Mar 2026 in Tools • Tagged with tailscale, security, ai, api, gateway

Tailscale's Aperture centralizes LLM access by eliminating the need to distribute API keys to developers, using Tailscale identity for authentication.


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sem: Semantic Version Control

Posted on Sun, 15 Mar 2026 in Programming • Tagged with cli, versioning, rust, tools

Discovering sem, a CLI tool that understands your code's semantics and tells you what entities changed, not just what lines.


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os.click: Operating System ISO Download Center

Posted on Thu, 12 Mar 2026 in Programación • Tagged with linux, windows, iso, operating systems, tools

Quick reminder about os.click for downloading official ISOs.


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From net-tools to iproute2: command equivalents

Posted on Fri, 06 Mar 2026 in Linux • Tagged with linux, networking, iproute2, net-tools, terminal

A guide to equivalents between classic net-tools commands (ifconfig, route, arp) and modern iproute2 commands (ip).


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Fixing Rodney Chrome Error on Wayland

Posted on Fri, 06 Mar 2026 in Problems • Tagged with rodney, chrome, wayland, linux, debugging

How to fix Rodney crash when starting Chrome on Wayland systems by using the system Chrome.


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Record and Share your Terminal Sessions with asciinema

Posted on Fri, 27 Feb 2026 in Tools • Tagged with asciinema, terminal, linux, productivity

Discover asciinema, the perfect tool to record your terminal sessions in a lightweight, reproducible, and easy-to-share way.


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kitty-rbw: Fast Bitwarden access from your kitty terminal

Posted on Thu, 26 Feb 2026 in Tools • Tagged with bitwarden, cli, kitty, rust, productivity

Introducing kitty-rbw, a "kitten" for the kitty terminal that allows you to search and use rbw (Bitwarden) credentials instantly using fzf.


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rbw: The Bitwarden terminal client you should be using

Posted on Thu, 26 Feb 2026 in Tools • Tagged with bitwarden, cli, rust, security, pi-agent

How to install and configure rbw, a Rust implementation of the Bitwarden client, and how to integrate it into your workflows with pi-agent.


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DeepDiff: The Swiss Army Knife for Data Comparison in Python

Posted on Fri, 20 Feb 2026 in Python • Tagged with python, data, cli, tools, diff

When working with structured data in Python, we often need to compare two dictionaries, JSONs, or complex objects to find out what has changed. While direct comparison (==) is useful, sometimes we need to understand exactly what is different: which keys were added, which were removed, or where values have changed …


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Rendering Markdown in the terminal with Glow

Posted on Fri, 20 Feb 2026 in Linux • Tagged with cli, markdown, tools, linux, kitty

Discover Glow, a tool to render Markdown directly in the terminal, ideal for reading documentation and READMEs.


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Shot-scraper: Automated Web Screenshots

Posted on Fri, 20 Feb 2026 in Python • Tagged with python, cli, tools, web, scraping, screenshots

Have you ever needed to take screenshots of a web page programmatically? Perhaps to document your project, monitor UI changes, or generate images for social media. There are many ways to do it, but shot-scraper stands out for its ease of use and power.

Created by Simon Willison, shot-scraper is …


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Stern: Kubernetes Logs on Steroids

Posted on Fri, 20 Feb 2026 in DevOps • Tagged with kubernetes, cli, logs, devops, tools

If you work with Kubernetes, you've probably suffered through the kubectl logs command. It's useful for viewing the logs of a specific pod, but it falls short when you have multiple replicas of a service or when pods restart and change names.

This is where Stern comes in.

Stern allows …


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Managing GitHub installations with gah

Posted on Wed, 11 Feb 2026 in Linux • Tagged with linux, tools, cli

Install binaries directly from GitHub releases easily with gah.


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Multiline YAML: Understanding and testing complex strings

Posted on Thu, 25 Dec 2025 in Tools • Tagged with yaml, configuration, development, tools, multiline, strings

Explore YAML options for effectively handling multiline strings, with an interactive demo that allows you to test them in real-time.


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Pandas Styler: Improve the Presentation of your DataFrames

Posted on Thu, 25 Dec 2025 in Programming • Tagged with pandas, python, data-science, visualization, style

Discover how the Pandas Styler object allows you to apply conditional formatting and CSS styles to your DataFrames for better data visualization and presentation.


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`fresh`: My preferred terminal editor for daily use

Posted on Thu, 25 Dec 2025 in Tools • Tagged with fresh, terminal, editor, productivity, linux, tools, cli

Discover fresh, a fast, modern, modeless terminal text editor, ideal for casual file editing, surpassing nano and vim in simplicity for regular use.


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How to View Files in an RPM Package on Linux

Posted on Thu, 25 Dec 2025 in Systems • Tagged with linux, rpm, packages, commands, systems, administration, dnf, yum

Quick guide to inspecting the contents of RPM packages and determining which packages own specific files on your Linux system.


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Kooha: Simple and Elegant Screen Recording on Linux

Posted on Thu, 25 Dec 2025 in Tools • Tagged with linux, kooha, screen-recorder, productivity, tools, open-source

Discover Kooha, a minimalist screen recording application for Linux that combines ease of use with essential features.


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OpenEvidence: The Leading Medical Information Platform for Professionals

Posted on Thu, 25 Dec 2025 in Miscellaneous • Tagged with open-evidence, medicine, health, medical-information, health-professionals, research, clinical

Exploring OpenEvidence, a leading platform that consolidates medical information, clinical findings, and practice guidelines for healthcare professionals in the US.


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`direnv`: Manage your development environments intelligently

Posted on Thu, 25 Dec 2025 in Tools • Tagged with direnv, shell, environment, productivity, development, linux, tools

Discover direnv, a shell extension that automatically loads and unloads environment variables when changing directories, keeping your configuration clean and organized.


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`docker-http-https-echo`: An Essential Tool for Network Debugging

Posted on Thu, 25 Dec 2025 in Tools • Tagged with docker, http, https, debugging, networking, tools, containers

mendhak/docker-http-https-echo is a simple Docker container that facilitates debugging network configurations, proxies, and load balancers.


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Kubegres: Simplified PostgreSQL Management on Kubernetes

Posted on Thu, 25 Dec 2025 in DevOps • Tagged with kubernetes, postgresql, kubegres, operator, database, devops

Discover Kubegres, a Kubernetes operator that simplifies the deployment and management of highly available and scalable PostgreSQL clusters.


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TCP Connection States in GNU/Linux: netstat and ss

Posted on Thu, 25 Dec 2025 in Systems • Tagged with linux, networking, tcp, netstat, ss, systems

Understand the different TCP connection states reported by netstat and ss, from establishment to termination, for better network diagnosis.


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Reduce Noise in Your Python Logs: A Smart Approach

Posted on Thu, 25 Dec 2025 in Programming • Tagged with python, logging, logs, debugging, development

Learn how to configure Python's logging module to avoid message overload from third-party libraries, keeping your logs clean and useful.


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Kitty as a Quick Access Terminal: The Convenience of a Dropdown

Posted on Thu, 25 Dec 2025 in Systems • Tagged with kitty, terminal, quick-access, productivity, linux, shortcuts

Configure Kitty for instant and efficient access, combining the power of a modern terminal with the convenience of a dropdown.


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Essential Keyboard Shortcuts in Kitty: Mastering Your Terminal

Posted on Thu, 25 Dec 2025 in Systems • Tagged with kitty, terminal, shortcuts, keyboard, productivity

A quick guide to the most useful Kitty keyboard shortcuts to optimize your command-line workflow.


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From Yakuake to Kitty: My Transition to a Modern Terminal

Posted on Thu, 25 Dec 2025 in Systems • Tagged with kitty, yakuake, terminal, linux, productivity, tools

Exploring the reasons and benefits of switching from Yakuake to Kitty for a more powerful and customizable terminal experience.


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Poe the Poet: Automating Tasks in Python Projects with uv

Posted on Thu, 25 Dec 2025 in Programming • Tagged with python, uv, poethepoet, automation, pyproject.toml

Discover how Poe the Poet allows you to define and execute custom commands directly from your pyproject.toml, optimizing your workflow in uv environments.


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How I Use Git Worktrees for Concurrent Work

Posted on Wed, 23 Jul 2025 in Programming • Tagged with git, worktrees, workflow, productivity

A practical approach to using git worktrees and maximizing productivity with multiple simultaneous work contexts


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Hybrid Search with SQLite: Vector + Full-Text

Posted on Sun, 06 Oct 2024 in Programming • Tagged with sqlite, search, vectors, fts, sql

Combining vector search and full-text search in SQLite using Reciprocal Rank Fusion for better results


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Geospatial Data Conflation with DuckDB and Embeddings

Posted on Tue, 01 Oct 2024 in Programming • Tagged with duckdb, geospatial, embeddings, ollama, h3

Advanced techniques to integrate geospatial data sources using DuckDB, H3, Ollama, and embedding models


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HTTPX: Modern HTTP Client for Python

Posted on Mon, 23 Sep 2024 in Programming • Tagged with python, http, httpx, async, requests

HTTPX emerges as the natural successor to requests, offering async support, HTTP/2, and a modern API for contemporary Python applications.


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Server-Sent Events: Simplified Real-Time Communication

Posted on Mon, 23 Sep 2024 in Programming • Tagged with javascript, sse, real-time, web-apis

Server-Sent Events offer a simple and efficient alternative to WebSockets for unidirectional server-to-client communication in web applications


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About Versions

Posted on Mon, 01 May 2017 in Programming • Tagged with python


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MobaXterm. Much more than an ssh client

Posted on Tue, 11 Apr 2017 in Tricks • Tagged with linux


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PosteRazor: Create Giant Posters from Any Image

Posted on Fri, 24 Feb 2017 in Tools • Tagged with posterazor, printing, posters, diy, tools

PosteRazor converts any image into a giant poster by splitting the image into printable pages that you can assemble


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Unread Mail in Gmail's Primary Tab

Posted on Thu, 28 Jul 2016 in Tricks • Tagged with linux

As always, another reminder note.

If you filter mail in gmail by unread (is:unread), you get all unread mail, which in my case always includes hundreds of notifications, social, promotions, or forums which is usually not what I'm looking for.

To search for unread emails from the Primary tab …


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Technical Documentation with Sphinx, Paver, and Cog

Posted on Thu, 14 Jul 2016 in Documentation • Tagged with sphinx, paver, cog, documentation, rst, automation

Automated workflow to create technical documentation using Sphinx, Paver, and Cog, eliminating repetitive tasks and manual errors in code examples


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Determining RAM slots in use on Linux

Posted on Wed, 13 Jul 2016 in Linux • Tagged with linux, ram, dmidecode, lshw, hardware, memory

Linux commands to determine how many RAM slots are occupied and their capacity using dmidecode, lshw, and hardware inspection techniques


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Introduction to High-Frequency Trading Systems

Posted on Mon, 27 Jun 2016 in Finance • Tagged with trading, hft, high-frequency, algorithms, finance

Fundamental concepts about High-Frequency Trading (HFT) systems, programs that execute thousands of trades per day in fractions of a second


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How to Find Live Hosts on Your Local Network

Posted on Mon, 27 Jun 2016 in Security • Tagged with nmap, network-discovery, arp-scan, netdiscover, security

Methods and tools to discover active devices on local networks using nmap, arp-scan, netdiscover, and other reconnaissance techniques


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Powerful Command Line Tools for Developers

Posted on Tue, 07 Jun 2016 in Tools • Tagged with cli, tools, development, networking, testing

Collection of essential command line tools for developers: curl, ngrep, netcat, sshuttle, siege, and mitmproxy


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Sysdig: Cloud-Native Security Platform with AI

Posted on Wed, 10 Feb 2016 in Tools • Tagged with sysdig, security, cloud, kubernetes, falco

Sysdig offers a comprehensive security platform for cloud-native environments that combines AI, real-time visibility, and open source innovation


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Python: Create Repeating Generators

Posted on Tue, 09 Feb 2016 in Python • Tagged with python, generators, itertools, decorators, yield

Techniques in Python to create generators that can be iterated multiple times, overcoming the "one-shot" limitation of standard generators


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Middle click in firefox

Posted on Fri, 01 Jan 2016 in Systems • Tagged with linux

Stop firefox from opening the pasted url with the middle mouse button


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Bootstrap: Two Links in the Same Row in Dropdown

Posted on Tue, 15 Dec 2015 in Frontend • Tagged with bootstrap, css, dropdown, flexbox, html

CSS technique to place two links on the same horizontal row within a Bootstrap dropdown menu using flexbox


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Galen Framework: Automated Testing for Responsive Design

Posted on Fri, 13 Nov 2015 in Testing • Tagged with galen, testing, responsive, layout, selenium

Galen Framework simplifies automated testing of responsive layouts by verifying the position and appearance of elements across different devices


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The Story Behind X-Forwarded-For and X-Real-IP

Posted on Wed, 21 Oct 2015 in Networking • Tagged with headers, x-forwarded-for, x-real-ip, proxy, nginx

Analysis of X-Forwarded-For and X-Real-IP headers, their origins, differences, and how to determine the client's real IP in architectures with multiple proxies


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Nginx: Configuring X-Forwarded-For in Reverse Proxy

Posted on Wed, 21 Oct 2015 in DevOps • Tagged with nginx, reverse-proxy, x-forwarded-for, real-ip, configuration

How to configure Nginx to pass the client's real IP to backend servers using the X-Forwarded-For header in reverse proxy configurations


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SQL: Select Rows with Max Value per Group

Posted on Wed, 21 Oct 2015 in SQL • Tagged with sql, mysql, queries, window-functions, joins

SQL techniques to select complete rows with the maximum value of a column within groups, comparing performance of subqueries, joins, and window functions


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Repeating a function with threads

Posted on Sun, 03 May 2015 in Programming • Tagged with python

Let's use threads in python to periodically execute a function


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Install InSync on Opensuse

Posted on Mon, 20 Apr 2015 in Systems • Tagged with django, python


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NetHogs see consumed bandwidth

Posted on Thu, 16 Apr 2015 in Systems • Tagged with linux

To measure the bandwidth I am using right now, I use NetHogs

By default, it looks for a network interface called "eth0". If it doesn't find it, it complains like this:

ioctl failed while establishing local IP for selected device eth0. You may specify the device on the command line …

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Google Code is Closing

Posted on Fri, 13 Mar 2015 in Programming • Tagged with python

As I said, Google announced the closure of Google Code.

Today I received the email notifying me (I had a test project hosted there) that I could move my projects simply to github, the de facto repository for free software today (sorry for bitbucket and especially for mercurial).

Its interface …


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pgcli the discovery of the day

Posted on Mon, 02 Mar 2015 in Programming • Tagged with postgresql

postresql command line


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Blogging again

Posted on Fri, 20 Feb 2015 in Personal • Tagged with python

I am writing again.


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Ajax view decorator

Posted on Fri, 21 Nov 2014 in Programming • Tagged with python, django

To force a django view to be called only via AJAX calls.

def ajax_required(f):
    """
    AJAX request required decorator
    use it in your views:

    @ajax_required
    def my_view(request):
        ....

    """
    def wrap(request, *args, **kwargs):
        if not request.is_ajax():
            return HttpResponseBadRequest()
        return f(request, *args, **kwargs)
    wrap.__doc__ = f.__doc__
    wrap.__name__ …

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Generic function to use as upload_to

Posted on Sat, 11 Oct 2014 in Programming • Tagged with django, python

FileFields in Django need an upload_to function that determines where the file will be uploaded. I usually have a generic function in utils.py that leaves them in a subfolder with the model name.

import os

def generic_upload_to(instance, filename):
    """
    Generic `upload_to` function for models.FileField and models.ImageField
    which …

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Django: links in object list

Posted on Wed, 21 May 2014 in Programming • Tagged with django, python

In my projects I usually use links to related items in the admin change_list.

utils.py

I have this in utils.py

from django.contrib import admin
from django.contrib.contenttypes.models import ContentType
from django.core import urlresolvers
from django.utils.datastructures import SortedDict …

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Settings vars processor

Posted on Wed, 08 Jan 2014 in Programming • Tagged with python, django

I usually use this at the beginning of projects.

from django.conf import settings as django_settings
from django.core.exceptions import ImproperlyConfigured


def settings(request):
    """
    Adds the settings specified in settings.TEMPLATE_VISIBLE_SETTINGS to
    the request context.
    """
    new_settings = {}
    for attr in django_settings.TEMPLATE_VISIBLE_SETTINGS:
        try:
            new_settings[attr] = getattr(django_settings, attr)
        except AttributeError …

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