@BrettRowberry

Functional programming & DevOps. Clojure, F#, and Apple. Husband. Dad. Follower of Christ.

Joined July 2013
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36Media
brettrowberry.com/homemade-n…

Homemade Nutella Recipe

I love chocolate hazelnut spread. Most people are familiar with Nutella. I find that homemade is tastier, cheaper, and healthier. I found this recipe and loved it https://www.littlespicejar.com/wprm_p

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brettrowberry.com/macos-emoj…

macOS Emojis Using Rocket

I don't love the emoji picker built into macOS. I wish it was more like Slack's. Fortunately, a third-party app called Rocket can supply a similar experience. I find it's better than the system versio

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brettrowberry.com/vendor-ema…

Vendor Email Addresses

Imagine you manage Team Awesome at Cool Company. You rely on a third-party vendor, Checkers. They need to send you and your team emails. Let's go through the options, from worst to best. Individual Em

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brettrowberry.com/claude-cod…

Claude Code & Homebrew

I use Claude Code at work. Like everything else, I try to install it using Homebrew. There was a feature of Claude Code I wanted and Homebrew seemed to not have the version that supported it yet. I di

brettrowberry.com
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brettrowberry.com/ninja-crea…

Ninja Creami Vanilla Ice Cream Recipe

2 c heavy cream 1 c whole milk 1/2 c white sugar 1/4 c brown sugar 1 Tbsp vanilla extract pinch of salt Combine all ingredients into a bowl and mix. Pour…

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brettrowberry.com/when-is-cr…

When is Credit Card Cash Back Worth its Fee?

I have a credit card that offers cash back on purchases. Credit cards provide a time buffer between when a charge is incurred and when funds leave the checking account paying it off. This helps avoid

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brettrowberry.com/early-read…

Early Read on Kotlin Community

I want to get into the Kotlin community to accelerate my learning. Where should I go? Well, this was handy, I went through each of these resources. Unless…

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Quick blog post today. A new chapter! brettrowberry.com/hello-kotl…

Hello, Kotlin!

We're switching from Clojure to Kotlin at work. Is that good? I don't know yet! Here are some things I love about Clojure: its incredible REPL EDN keywords maps with heterogeneous keys and values

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New blog post brettrowberry.com/vertical-t…

Vertical Tabs in Chrome

I've been using Arc Browser for a long time. Why? Because I love vertical tabs in my browser. They allow me to read more of each tab's title when I have a lot of tabs. What Are Vertical Tabs? Tabs are

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I came across this article today and loved it. Self-serve first! medium.com/@gokulrajaram/sel…

Self-serve first: the overlooked but essential paradigm underlying great software companies

“My biggest regret is that our first customer was $1M ACV*,” my friend lamented over coffee the other day. “I wish I could take it back.”

medium.com
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Transpose a Matrix in Clojure { by @BrettRowberry } from @hashnode brettrowberry.com/transpose-…

Transpose a Matrix in Clojure

Imagine rows of letters, numbers, and Greek letters: [[:a :b] [:1 :2] [:alpha :beta]] Now, you want to transpose them. You started with a vector of vectors. Clojure's map function is pretty amazing

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Binary Search in Clojure { by @BrettRowberry } from @hashnode brettrowberry.com/binary-sea…

Binary Search in Clojure

I decided to implement linear search before going after binary search. Now, I’m ready! With linear search, we required the elements be sorted. We didn’t require the elements be bounded. In binary...

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Linear Search in Clojure { by @BrettRowberry } from @hashnode brettrowberry.com/linear-sea…

Linear Search in Clojure

I consider myself a classically trained computer scientist. However, I don’t regularly practice implementing algorithms at home. I hope to do more of that! At work, I do much higher level things,...

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Clojure +, +', and unchecked-add { by @BrettRowberry } from @hashnode brettrowberry.com/clojure-pl…

Clojure +, +', and unchecked-add

+ In Clojure core there’s a handy function, +. I’ll bet you know what it does: (+ 1 2 3) ;;=> 6 Let’s introduce a handy function as we explore: (defn value-and-type [& args] (map (juxt identity type)...

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Clojure Ratios { by @BrettRowberry } from @hashnode brettrowberry.com/clojure-ra…

Clojure Ratios

Computers do math really quickly. Yet, computers struggle with all kinds of things with math. Take, for example, the simple fraction: 2/3. This should be easy to store right? In most languages, it...

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Repeating Digits in Clojure { by @BrettRowberry } from @hashnode brettrowberry.com/repeating-…

Repeating Digits in Clojure

My son asked me if I could make the computer double numbers, like 2 4 6 → 22 44 66 I started with a really ugly solution: (map (fn [x] (parse-long (clojure.string/join "" [(str x) (str x)]))) [2 4...

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Sliding Windows in Clojure { by @BrettRowberry } from @hashnode brettrowberry.com/sliding-wi…

Sliding Windows in Clojure

I was doing a little Clojure programming and my son asked me if the computer could make it go 1 2 3, 2 3 4, 3 4 5, … I thought, hmm, that’s a sliding window. Here was my first thought: (->> (range 1...

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VS Code: Simple Browser { by @BrettRowberry } from @hashnode brettrowberry.com/vs-code-si…

VS Code: Simple Browser

Updated September 16, 2025 to indicate that Flares have a singleton mode as explained by PEZ. I just learned about Calva Flares. Then I wondered, is there something built into VS Code for viewing...

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Calva Flares { by @BrettRowberry } from @hashnode brettrowberry.com/calva-flar…

Calva Flares

Updated September 16, 2025 after PEZ showed me how to use the sidebar panel. I was playing with some Clojure code in Calva for Visual Studio Code and stumbled onto a feature. In my Primary Side Bar,...

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New blog post: Sales Promises brettrowberry.com/sales-prom…

Sales Promises

Imagine you’re a salesperson for a boutique car manufacturer and you’re having a sales conversation with a new, important customer: Customer: Thanks for seeing me. I’m really looking forward to one...

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