The short list of interesting things for me would look something like:

PHP, MySQL, JavaScript, TypeScript, HTML, CSS, Python, C#, NodeJS, NPM, Laravel, VueJS, React, jQuery, VBA, Excel, VSCode, DevOps, CI/CD, ...

OS related info for Windows, MacOS and Linux.

I have switched from being a shipbuilding engineer to being a full-time full-stack software engineer.