My Menu is as followed:
Electronics, I build and review electronics particularly with the Wemos and Arduino platforms. I can advise how to build electronics, etc.
IoT devices, I have a range of Internet of Things devices including rare Linux developer boards my company manufactured, Raspberry Pi units, and various Renesas boards. I have built a Raspberry Pi Cluster which I use to demonstrate the principles of distributed computing.
Programming - I am a programmer by trade, Senior Software Engineer I by job title, where I work on an automation system designed to automate the testing of GPU/CPU/Radio/Ray Tracing Silicon IP systems. I am experienced in: PHP, SQL, Python, Java, JavaScript, HTML/CSS, Unit Testing. I have worked with some C, C++, C#, SCHEME, MATLAB, AngularJS, Node.js. I can explain concepts from basic computer science to more complicated areas such as race conditions, performance optimisation, big o notation, etc.
Linux/Windows system management/maintenance - I am experienced in a variety of Linux and windows operating systems and am able to explain and offer advice about them, including building software/configuring it.
CV Review - In my profession I have went over hundreds of CV's and held numerous phone/face to face interviews. I am able to review a CV if you would like (More value will be for CV's in engineering/technical professions but a lot of the concepts are general) and give advise on improving it.
Building your own PC - I build PC's and can provide advice how you can build your own PC or upgrading it.