Here is a simple gist that demonstrates how to generate a random hex string in Python. This is pseudo-random and designed only to be used for generating test data.

Even for non-emacs users it can be powerful to understand the basic emacs command editing paradigm. Both Mac OS and the Unix and Linux shell allow emacs style command editing in text contexts. This basic introduction goes over the basics of emacs "chords" and control of the command line. An …

Emacs is a great system and worthwhile for any developer to spend some time learning and improving their skills. YouTube has plenty of introductions and tutorials to Emacs but very few tutorials aim at power users. Here are 5 tips for emacs users who would like to go to the …

One feature that is missing in Foundry and Forge is the ability to dynamically bind libraries. In fact, it can be pretty difficult to understand how to bind libraries in general and the documenation is fairly lacking. It took me several tries to get it right.

The docs are the …

Send email using an iCloud Custom Domain

I recently required a script to send email using an Apple iCloud Custom Domain. I found that the SMTP script I used before did not work because it attempted to login with my email address. The fix is to login with your apple …

Market Making in Crypto

High performance trading systems designers implement event sourcing models to build of low latency distributed systems. This is useful for market making where placing buy and sell orders rapidly lowers risk and improves profitability.

In this tutorial I explain how trading systems are designed to implement …