Over 30 years ago, I made some electronics boards with hand-drawn lines and acid to burn away the unneeded copper. Ever since then, I have dreamed of creating a “real” PCB. For the Pi4J project, which combines Java coding with electronic components, we used a breadboard setup for smoke tests. It turned out that this test approach would really benefit from a fixed PCB we could share across the main contributors. And it’s here! And it works! :-)
More info and video in this blog post:
<a href="https://webtechie.be/post/from-breadboard-chaos-to-a-real-pcb-designing-the-pi4j-smoke-test-board/" target="_blank" rel="noopener nofollow">https://webtechie.be/post/from-breadboard-chaos-to-a-real-pcb-designing-the-pi4j-smoke-test-board/</a>

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A developer shares their experience designing a custom PCB for the Pi4J project, which bridges Java programming with electronic components on Raspberry Pi. The board was created to replace a breadboard setup used for smoke testing, making it easier to share a consistent test environment among contributors. The post includes a blog link with more details and a video walkthrough.

My very first own designed "real" PCB, and yes, it's related to Java :-)