Software on Technical Notes

CRLF vs LF

Sat, 28 Sep 2024 00:00:00 +0000

When working in software development, one of the most subtle yet crucial aspects you need to be aware of is the difference between line endings in text files between Windows (CRLF \r\n) and Linux/MacOS (LF \n).

This small detail can cause big problems if not handled correctly, especially when working in mixed environments – version control conflicts, script incompatibilities, compilation or execution issues. I wrote this post to have a handy reference for dealing with this topic, including a few tricks.

Git Multi-Account

Sat, 21 Sep 2024 00:00:00 +0000

This post will walk you through the process of setting up and using multiple accounts with one or more Git providers (GitHub, GitLab, Gitea). I describe the two options I recommend: HTTPS + Git Credential Manager and SSH multi-account.

The first, HTTPS + Git Credential Manager, is the one I use most, because it’s compatible with CLI and/or GUI tools like Visual Studio, VSCode, Git Desktop, Gitkraken, etc. The second option, SSH multi-account, I delegate to “headless” machines, servers I connect to remotely via CLI or VSCode remote that need to clone repositories and work on them.

Home PBX

Sat, 13 Jul 2024 00:00:00 +0000

Asterisk is a free software program (under GPL license) that provides PBX (Private Branch Exchange) functionality. You can connect phones to make calls between them within your home (or office) and even access external communications, to the PSTN (like Movistar) or by connecting to a VoIP provider or ISDN links (basic or primary).

Software KVM

Thu, 13 Jun 2024 00:00:00 +0000

In environments where you need to operate multiple computers simultaneously, efficiency is key. There are several products that mimic the functionality of a KVM switch (Keyboard, Video, Mouse), which historically allowed you to use a single keyboard and mouse to control multiple computers by physically turning a dial. In this post I describe how I install and use Barrier, a software KVM solution, without the need for additional hardware.

My use case involves controlling three computers with a single keyboard and mouse. Two of them are desktops – a Mac and a Windows PC. The third is a Windows/Linux laptop. The difficulty lies with the Mac, where I encountered a curious and nearly insurmountable challenge.

Terminals with tmux

Thu, 25 Apr 2024 00:00:00 +0000

tmux is a terminal multiplexer that allows you to have multiple sessions (shells) in a single window. From your Mac, Linux, or even Windows (with WSL) terminal, in a single window you can have multiple active sessions, switch between them, view them simultaneously, enter one and disconnect (they keep running in the background), and reconnect to it in the future.

Customizing VSCode

Tue, 20 Jun 2023 00:00:00 +0000

In this post I cover how to customize VSCode. I work with GitHub in a cross-platform, multi-account environment and want to sync my settings, use the same extensions, and leverage licenses. I explain the multi-account topic, synchronization of my global and per-project preferences (settings), and extensions.

I normally use Windows, Linux, and macOS, and I’ve chosen VSCode as my editor/IDE. The goal is to have a unified work experience – launch VSCode on any operating system, clone a personal or professional project, keeping the same extensions and settings, and even using the options to connect to a host, tunnel, WSL, etc.

Git Cheat Sheet

Sun, 10 Oct 2021 00:00:00 +0000

This post contains my GIT cheat sheet, various reminders I use as a programmer — common commands or situations. It comes in handy for example when I accidentally delete a file and want to recover it, check a previous version of code, or ignore a modification in a specific file.