Guide

Last updated: 2025/11/30 Info What will I have at the end of this tutorial? You will have a Foundry server running on a remote system that will always be on. You’ll have secure HTTPS for your connection. It will be a very basic setup. Your certificate will optionally be self-signed and probably scary looking the first time you connect, but perfectly good to use for years (Step 8a). Alternatively, if you have a domain, we can set up a proper HTTPS site that will get rid of the self signing warning (Step 8b). ...

Let’s say you wanted to design a useful little machine called a widget, and start producing them in a range of colours. First thing you’d do is design a blueprint. In Python, writing a class is much like writing a blueprint for something. Let’s write our widget! class Widget: pass Well. That was easy. We could start producing these widgets right away if we liked. first_edition_widget = Widget() second_edition_widget = Widget() third_edition_widget = Widget() Nice! We have our widgets. Each widget is an instance of Widget and is its own object. We don’t yet have a way to give our widgets a range of colours though. Giving our class an __init__ method will enable us to initialise each widget with a colour. Let’s do that, and then create a red widget. ...

Some Terminology I/O i/o (input/output) is pretty much any operation that requires getting data from outside of your computer’s RAM. (Usually means getting stuff from your hard drive, or over a network.) Hard drives and networks are physical things which need to be accessed, and as such they are extremely slow relative to running computations, or accessing things from your blazing fast RAM. The performance of an i/o bound task is dependent on the devices and interfaces between you and the resource you want to access. This could be kilometers of copper wire maintained by pigeons, or it could be your uber-fast SSD. ...