Notes… and stuff!

iMac G5 Screen Upgrade

Sat, 25 Oct 2025 00:00:00 +0000

Step-by-step guide to upgrading an iMac G5 17" (iSight, 2006) — adding RAM, SSD, and replacing the screen with full photos and part references.

Maven Release Plugin

Sun, 31 Mar 2024 00:00:00 +0000

Original document: github.com/nyg/kraken-api-java/blob/master/RELEASE.md

This document explains how a kraken-api-java release is created, describes what are the tools used, and how they interact with each other.

When a release is created, the visible “output” is an updated CHANGLOG.md file, a GitHub release with a changelog, and the release artifact available in the Maven Central repository.

Overview

When wanting to make a release, the following must/will be performed:

Manually execute the prepare goal of the maven-release-plugin, this will create a git tag and push it to the remote repository.
Once the tag is pushed, the user-defined GitHub Actions workflow is triggered and creates a GitHub release with a changelog generated by git-cliff.
Manually execute the perform goal of the maven-release-plugin, this will build and upload the artifacts to Sonatype’s servers.
Manually publish to Maven Central the uploaded artifacts using Sonatype’s website (this can be done automatically in step 3, see below).

In theory, all of these steps could be merged into a single GitHub Actions workflow. However, for the time being, we prefer to delegate a minimum amount of steps to GitHub. Regarding step 2, it could be run manually from one’s own machine as it consists of a single GitHub REST API call.

Log4j2 ThreadContext

Sat, 18 Mar 2023 00:00:00 +0000

Source repository: github.com/nyg/example-log4j

This proof-of-concept shows how to use a Log4j Routing appender to route log events of a service to different files, based on who initially called the service methods, i.e. a JMX call or a Spring scheduler in our case.

The service Service has two methods: doOne and doTwo, which represent two distinct business actions in an application. Each method is called by a scheduler every 15 seconds in SchedulerOne and SchedulerTwo, respectively. Each method can also be executed via a JMX call through the OperationOne and OperationTwo managed resources (e.g. by using VisualVM).

Configuring sshpass

Sat, 25 Feb 2023 00:00:00 +0000

Summary: how to encrypt and store a password into a file with GPG, and then decrypting it to provide it to sshpass. Also, some Zsh completion configuration for sshpass. Quick demo below with some dummy users and hosts:

Overview

sshpass is a command-line tool allowing a user to connect to SSH hosts without having to interactively input the user’s password. The password can be provided to sshpass in different ways: