A Spring Boot REST service on a Raspberry Pi using Docker.

This project provides a Spring Boot Starter to use the Pi4J V2 library in your Spring Boot project.

The article dates to 2022, but goes through the installation of SDKMan, GraalVM and testing a Springboot example

In this tutorial, we'll learn how to configure a complete user authentication system in Django consisting of login, logout, signup, password change, and password reset.
The complete source code is available on Github if you need a reference.

Complete document walking through queues in Python. Appears complete and extensive, with examples and code

Still in development but very interesting to consider, by @delcano@mastorol.es

Discover Open Source Alternatives to Popular Software.
We’ve curated some great open source alternatives to tools that your business requires in day-to-day operations.

In this tutorial you'll build robust web crawlers using libraries like BeautifulSoup, learn techniques to overcome real-world scraping challenges and best practices for large scale scraping.
You'll gain the skills to scrape complex sites, handle issues like rate limits, blocks, and javascript pages.

I've written an ActivityPub server which only allows you to post messages to your followers. That's all it does. It won't record favourites or reposts. There's no support for following other accounts or receiving replies. It cannot delete or update posts nor can it verify signatures. It doesn't have a database or any storage beyond flat files.
But it will happily send messages and allow itself to be followed. This shows that it is totally possible to broadcast fully-featured ActivityPub messages to the Fediverse with minimal coding skills and modest resources.