Walter Vos
@waltervos.bsky.social
Here to learn about TDD, software architecture, and agile software development methods.
I want to try some blogging again, this time writing about software development. My first post is about how I got stuck in a kata while trying to teach a new colleague TDD: waltervos.nl/articles/lea...
waltervos.nl
November 5, 2025 at 2:46 PM
I want to try some blogging again, this time writing about software development. My first post is about how I got stuck in a kata while trying to teach a new colleague TDD: waltervos.nl/articles/lea...
Definitely FlashForward
Everyone has a 1-2 season TV show they sorely miss and not enough people knew about that you are always praising the heavens about.
What's yours?
What's yours?
September 13, 2025 at 12:19 PM
Definitely FlashForward
This sounded fake to me, so I checked. Searched for *medal of honor Monday Charles Rogers* on DuckDuckGo to find the original URL which indeed forwards to the "deimedal" URL 🤯
This is blood-boiling. Charles Rogers was awarded the Medal of Honor in Vietnam after being wounded three times leading the defense of a position.
Google his name and the entry below comes up. When you click, you'll see the page has been deleted and the URL changed to include "DEI medal."
Google his name and the entry below comes up. When you click, you'll see the page has been deleted and the URL changed to include "DEI medal."
March 16, 2025 at 2:41 PM
This sounded fake to me, so I checked. Searched for *medal of honor Monday Charles Rogers* on DuckDuckGo to find the original URL which indeed forwards to the "deimedal" URL 🤯
After a weekend of YouTube, @stackoverflow.com.web.brid.gy and documentation...
March 2, 2025 at 9:15 AM
After a weekend of YouTube, @stackoverflow.com.web.brid.gy and documentation...
Been trying to learn C++ lately. I thought Bazel was quite nice and I get to a decent start making a binary, a library, and a test package. But I cannot get over how it doesn't really support C++ 20 modules. It's like python with its version 2.7!
February 27, 2025 at 9:56 PM
Been trying to learn C++ lately. I thought Bazel was quite nice and I get to a decent start making a binary, a library, and a test package. But I cannot get over how it doesn't really support C++ 20 modules. It's like python with its version 2.7!
Reposted by Walter Vos
Thank you, Eugene, glad you like the book - and glad you like the figs being posted.
February 23, 2025 at 2:34 PM
Thank you, Eugene, glad you like the book - and glad you like the figs being posted.
Reposted by Walter Vos
Brazil! i would love to set up a journey through Brazil in August - need some hosts interested in private corporate sessions and also for public sessions - Who is connected there?? Thanks in advance!
February 7, 2025 at 2:17 PM
Brazil! i would love to set up a journey through Brazil in August - need some hosts interested in private corporate sessions and also for public sessions - Who is connected there?? Thanks in advance!
Ugh, now Bluesky has started to look a lot like Twitter. But maybe it's just the state of the world right now, making everywhere look like Twitter.
February 2, 2025 at 9:52 PM
Ugh, now Bluesky has started to look a lot like Twitter. But maybe it's just the state of the world right now, making everywhere look like Twitter.
An off by one error?! In my house?! @kevlin.bsky.social
February 2, 2025 at 11:08 AM
An off by one error?! In my house?! @kevlin.bsky.social
Reposted by Walter Vos
Which Large Language Model do you prefer? The one that thinks trans people don’t exist or the one that doesn’t want to talk about Tianmen Square in 1989?
January 27, 2025 at 3:59 PM
Which Large Language Model do you prefer? The one that thinks trans people don’t exist or the one that doesn’t want to talk about Tianmen Square in 1989?
From today's #tdd #codingdojo: "mock what you tell, stub what you ask". That certainly resonated with me.
January 15, 2025 at 7:07 PM
From today's #tdd #codingdojo: "mock what you tell, stub what you ask". That certainly resonated with me.
In a grid, is x your column number or your row number? I think I'm doing it wrong 🥸
December 9, 2024 at 7:24 AM
In a grid, is x your column number or your row number? I think I'm doing it wrong 🥸
#adventofcode has me confused. Now both for day 6 part 2 and for day 7 part 1 I've solved the example, but my solutions for the actual puzzle are wrong :'( #fsharp
December 7, 2024 at 9:56 PM
#adventofcode has me confused. Now both for day 6 part 2 and for day 7 part 1 I've solved the example, but my solutions for the actual puzzle are wrong :'( #fsharp
I did get a solution for part 1 now, but I think I've gone about it in a ridiculous way :D. Now for some coffee.
December 5, 2024 at 9:25 AM
I did get a solution for part 1 now, but I think I've gone about it in a ridiculous way :D. Now for some coffee.
Day 3 of my #fsharp #adventofcode went a lot better. If you're interested, I've published my solutions on github: github.com/waltervos/ad...
December 3, 2024 at 8:51 AM
Day 3 of my #fsharp #adventofcode went a lot better. If you're interested, I've published my solutions on github: github.com/waltervos/ad...
Finally cracked day 2 of #adventofcode in #fsharp. Once solved, it's quite easy, I'm finding out I'm not a programmer for puzzles.
December 2, 2024 at 9:37 PM
Finally cracked day 2 of #adventofcode in #fsharp. Once solved, it's quite easy, I'm finding out I'm not a programmer for puzzles.
Was inspired by @dmlled.bsky.social's #hexagonalarchitecture example repo (github.com/d-led/ports-...) to create my own: github.com/waltervos/po.... Did I get this right?
December 1, 2024 at 10:15 PM
Was inspired by @dmlled.bsky.social's #hexagonalarchitecture example repo (github.com/d-led/ports-...) to create my own: github.com/waltervos/po.... Did I get this right?
That's day 1 of #adventofcode in #fsharp. I thought it was a bit more complicated that it actually was, so I wasted some time. Oh well, lessons were learned.
December 1, 2024 at 4:11 PM
That's day 1 of #adventofcode in #fsharp. I thought it was a bit more complicated that it actually was, so I wasted some time. Oh well, lessons were learned.
Spent an hour trying to write an addOrUpdate function for #fsharp, only to find out that Map.change does exactly that (and removes as well) 🤦♂️
December 1, 2024 at 11:04 AM
Spent an hour trying to write an addOrUpdate function for #fsharp, only to find out that Map.change does exactly that (and removes as well) 🤦♂️
So, about the gossiping bus drivers kata (kata-log.rocks/gossiping-bu...), using #TDD as if you meant it in #fsharp, this is a fragment of how I went about it: 🧵
Gossiping Bus Drivers Kata
kata-log.rocks
November 27, 2024 at 5:21 PM
So, about the gossiping bus drivers kata (kata-log.rocks/gossiping-bu...), using #TDD as if you meant it in #fsharp, this is a fragment of how I went about it: 🧵
Watching the #techexcellence sessions, and reading the chat, on (A)TDD with test doubles, and #hexagonalarchitecture makes me wonder where all these quality oriented developers work. I'm fully onboard, but I have real trouble teaching others. And quality code really isn't a one person job...
November 23, 2024 at 11:44 AM
Watching the #techexcellence sessions, and reading the chat, on (A)TDD with test doubles, and #hexagonalarchitecture makes me wonder where all these quality oriented developers work. I'm fully onboard, but I have real trouble teaching others. And quality code really isn't a one person job...