GPS without a radio

UUIDs are a 128-bit number, represented as groups of hexadecimal digits, separated by - characters. For example, a UUIDv4 looks like 62b5dcd2-1549-4e1c-8315-0e83b2518b35. They're primarily intended as identifiers, and they have a few versions that have different properties. I'm going to focus on UUIDv4 here and why you might not need them. Side...

Bottom line up-front, I think there are at least 4 types of estimate: Delivery date Cycle time Dev-time Relative I only intend to define these here, not advocate for any specific type. Delivery date Estimates like "we'll have it to you by 2024-Oct-01" are delivery date estimates. They're pinned to a specific date in the calendar and most often...

There have been a couple of posts on Statistical Process Control (SPC) recently. The most common objections are that you can't measure software development, that software development is too intrinsically variable for these techniques to be worthwhile, or the measures have no effect on outcomes that matter (e.g., Free cash flow (FCF), return on...

About a year ago, Amazon Music switched their offering to a "shuffle-only" model. This is fine for most albums, but there are some albums that I love to listen to in-order. Think, Miles Davis' "Kind of Blue" or literally anything by Tool. I'd been a Prime subscriber for well over a decade, but I wasn't about to pay extra for a feature they'd...

In the Twelve Factor App, section III. Config, Wiggins writes that config should be stored in environment variables, including "Credentials to external services such as Amazon S3 or Twitter". However, this neglects one important aspect of service-to-service credentials: rotation. Credentials are one of the few configuration values that need to be...