I recently upgraded my home TrueNAS server and migrated 18 TB of data from a 4-disk RAIDZ1 ZFS pool to a new RAIDZ2 pool.

The neat part is that I did it with only three additional 8 TB disks and never transferred my data to external storage.

Upgrading from RAIDZ1 to RAIDZ2 without moving data to external storage is tricky because:

Highlights

• I look for ways to limit the number of half-complete tasks I’m juggling.
• I brainstorm ways to talk with more of my early readers.
• I have trouble accepting a design decision in the Gleam language.

Goal grades

At the start of each month, I declare what I’d like to accomplish. Here’s how I did against those goals:

Offer a lower-friction way for users to pre-order my book

• Result: Switched from Kickstarter pre-orders to Stripe payment links.
• Grade: A

I ran the initial pre-sale through Kickstarter, so I decided to just stick with it for subsequent pre-orders. After a couple of months, I realized Kickstarter requires customers to create an account to buy the book, which adds a lot of friction and discourages people from buying.

I recently returned a product to goHardDrive, a merchant that specializes in selling used hard drives. During the return process, I discovered that they were accidentally publishing details about thousands of their customers, including their full names, mailing addresses, email addresses, and order details.

The leak

When I requested a return from goHardDrive, they assigned me a return merchandise authorization (RMA) number ending in five numeric digits. I’m not publishing my actual RMA number, but you can imagine that it was a number like this:

I’m looking for a new programming language to learn this year, and Gleam looks like the most fun. It’s an Elixir-like language that supports static typing.

I read the language tour, and it made sense to me, but I need to build something before I can judge a programming language well.

I’m sharing some notes on my first few hours using Gleam in case they’re helpful to others learning Gleam or to the team developing the language.

I’ve been experimenting a bit with Gleam and Elixir lately as part of my search for a new programming language.

One of Gleam’s flagship features is that it can call Elixir code and libraries, but I couldn’t find any examples of how to do that. I wrote a simple example of calling an Elixir library from a Gleam project, based on my beginner’s understanding of the Gleam/Elixir/Erlang ecosystem.

Install dependencies

For this example, I’m using