Pi-hole is a DNS (and DHCP) server that protects your devices from unwanted content, without needing to install any software on the clients in your network. Its use case is to act as a sinkhole for the advertising that floods today’s networks. Yes, a small Linux PC with Pi-hole on your home network to prevent tons of ads from reaching you while you browse. …

The systemd manager allows configuring services from a normal system user. These systemd user services are a little-known but very useful feature. It consists of being able to create and use .service files from a user’s local directory that run with their privileges. …

Vagrant creates and runs virtual machines, relying on virtualization providers such as Virtualbox, KVM, Docker, VMWare, and 30+ others. It will always default to launching the VM with Virtualbox unless we explicitly specify a different provider. In this guide I explain how I set up Vagrant with the Libvirt KVM provider on Linux. …

In this post I describe how I managed, from a MacOS, to correctly convert Jupyter Lab exercises to PDF in different environments. Converting Jupyter Lab notebooks to PDF is not easy due to the multiple variants (images, links) they can contain. I’ve tried intermediate exports, pandoc, apps, without much success. …

MacOS doesn’t include an option in Finder to preview Jupyter Lab notebooks (.ipynb). There are several options but one of the quickest and simplest is to install ipynb-quicklook …

Python is a multi-paradigm interpreted programming language. pip manages packages from PyPI (the Python Package Index). PipEnv lets you create a virtual environment to run your application in isolation with the necessary libraries. Jupyter Lab is a web application that serves as a bridge between code and explanatory text. …