Kristofer Hallén
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kristoferhallen.bsky.social
Kristofer Hallén
@kristoferhallen.bsky.social
63 followers 180 following 53 posts
Software development, DevOps, Sherlock Holmes
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kristoferhallen.bsky.social
After briging (home baked of course) cookies to a workshop I have now defined a new leadership style "Management by cookies" (MBC). It is based on the Cookie Hypothesis - "people follow the one with the cookies".

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Management by cookies | Kristofer Hallén
Software development thoughts by Kristofer Hallén.
kristoferhallen.com
September 21, 2025 at 3:52 PM
kristoferhallen.bsky.social
Adding to the Sherlock Holmes library, this time Sherlock meets Dorian Gray! sherlock.kristoferhallen.com/post/sherloc...
#sherlockholmes #doriangray
Sherlock Holmes and Dorian Gray
Mycroft sends Sherlock and Watson to investigate a circus. One of the strange circus performers is murdered and Sherlock’s enquires leads to a man with a mysterious background and a portrait in a secr...
sherlock.kristoferhallen.com
September 10, 2025 at 6:00 PM
kristoferhallen.bsky.social
Book added to the library, Dust and Shadow by Lyndsay Faye. Sherlock Holmes meets Jack the Ripper!
sherlock.kristoferhallen.com/post/dustsha...

#sherlockholmes
Dust and Shadow
Sherlock Holmes meets Jack the Ripper! Someone is killing women in London, a challenge for the police and soon also for Sherlock Holmes. The killer must be stopped but he is hard to find in the big ci...
sherlock.kristoferhallen.com
August 12, 2025 at 5:56 PM
kristoferhallen.bsky.social
Sherlock Holmes Lego summer project, the Sherlock Holmes book nook! sherlock.kristoferhallen.com/post/booknook/
Lego Sherlock Holmes book nook
July 29, 2025 at 6:49 PM
kristoferhallen.bsky.social
Book review added to the library, The house of silk by Anthony Horowitz. sherlock.kristoferhallen.com/post/thehous... #sherlockholmes
The House of Silk
Anthony Horowitz’s “The House of Silk” was commissioned and authorized by the estate of Sir Arthur Conan Doyle. Set in the familiar gaslit streets of Victorian London, the story finds Holmes and Watso...
sherlock.kristoferhallen.com
June 29, 2025 at 6:18 PM
kristoferhallen.bsky.social
Book review, Den löse skägghandlaren, Sherlock Holmes meets Ture Sventon!

sherlock.kristoferhallen.com/post/denlose...
Den löse skägghandlaren (The loose beard trader)
Sherlock Holmes and Watson are called to Stockholm to assist the colleague Ture Sventon, a famous swedish detective. They travel to Stockholm using Sventon’s flying carpet. When in Sventon’s office on...
sherlock.kristoferhallen.com
June 23, 2025 at 6:36 PM
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Thinking about when it is time to change a tool or technology in software development. kristoferhallen.com/posts/whento...
When to change tools or technology | Kristofer Hallén
Software development thoughts by Kristofer Hallén.
kristoferhallen.com
June 8, 2025 at 6:47 PM
kristoferhallen.bsky.social
Book review The Adventure of the Murder on the Calais Coach. Sherlock Holmes meets Hercule Poirot! Or they are at least workin on the same case. sherlock.kristoferhallen.com/post/theadve...
#sherlockholmes
The Adventure of the Murder on the Calais Coach
Watson is requested to visit the retired Sherlock, now living in the countryside, and also to bring a mysterious package. Holmes is investigating a murder on the Calais coach, a murder that has alread...
sherlock.kristoferhallen.com
May 28, 2025 at 6:13 PM
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More Mary Russel books on the blog! sherlock.kristoferhallen.com/post/thelant...
#sherlockholmes #maryrussel
The Lanterns Dance
The Game is the eighteenth book in the Mary Russell series (reviews) about Mary Russel and Sherlock Holmes. Mary and Sherlock travel to France to visit Sherlock’s son but when they arrive the son and ...
sherlock.kristoferhallen.com
May 6, 2025 at 6:07 PM
kristoferhallen.bsky.social
Book review, En Oscariansk skandal, Sherlock Holmes in Stockholm. sherlock.kristoferhallen.com/post/enoscar...

#sherlockholmes #kingofscandinavia
En Oscariansk skandal, Sherlock Holmes i Stockholm
Two times Holmes mentioned that he had helped the King of Scandinavia, in The Adventure of the Noble Bachelor and A Scandal in Bohemia. In this book we get to know more about what Sherlock and Watson ...
sherlock.kristoferhallen.com
April 27, 2025 at 4:23 PM
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Continuing with the Mary Russel book review, not in the right order I have realized. Now The Game! #sherlockholmes #maryrussel

sherlock.kristoferhallen.com/post/thegame/
The Game
The Game is the seventh book in the Mary Russell series (reviews) about Mary Russel and Sherlock Holmes. The detective duo embarks on a dangerous mission to colonial India. Summoned by Mycroft Holmes,...
sherlock.kristoferhallen.com
April 21, 2025 at 6:12 PM
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Another Mary Russel and Sherlock Holmes book review, Garment of Shadows sherlock.kristoferhallen.com/post/garment...
#sherlockholmes #maryrussel
Garment of Shadows
Garment of Shadows follows Mary Russell, who awakens with amnesia, bloodstained hands, and no memory of her identity or how she got there. She starts the search for who she is and meanwhile her husban...
sherlock.kristoferhallen.com
April 15, 2025 at 6:33 PM
kristoferhallen.bsky.social
Thinking about engineering strategy and end up in that @lethain.com's lethain.com/eng-strategi... is a really good place to start.

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Writing an engineering strategy.
Once you become an engineering executive, an invisible timer starts ticking in the background. Tick tick tick. At some point that timer will go off, at which point someone will rush up to you demandin...
lethain.com
April 12, 2025 at 5:49 PM
kristoferhallen.bsky.social
Book review, The final solution. An old Sherlock meets a mute boy with a talking parrot that recites mysterious number series. sherlock.kristoferhallen.com/post/thefina... #sherlockholmes
The final solution book cover
March 29, 2025 at 6:01 PM
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A playful take on how Sherlock Holmes would approach software development. www.linkedin.com/pulse/consul...
#sherlockholmes #softwaredevelopment
The Consulting Detective´s Guide to Software Development: Lessons from Sherlock Holmes
As an avid Sherlock Holmes reader and software engineer, I asked myself if the methods of the greatest detective are useful in a software development context. This isn’t a handbook on software develop...
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March 15, 2025 at 6:07 PM
kristoferhallen.bsky.social
Book review, Anthony Horowitz's Moriarty. Set in the Holmes universe it is a great book if you want to see it from a new perspective and withouth Sherlock himself.
sherlock.kristoferhallen.com/post/moriarty/
Moriarty
Sherlock Holmes and Moriarty are dead after the fall at the Reichenbach Falls. A new criminal mastermind seem to be establishing in London and Inspector Jones and Pinkerton agent Frederick Chase join ...
sherlock.kristoferhallen.com
March 9, 2025 at 1:53 PM
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Trying to figure out what impacts lead time for (software) changes. kristoferhallen.com/posts/capabi...

#softwaredevelopment #devops
What’s Slowing You Down? Diving into Lead Time for Changes | Kristofer Hallén
Software development thoughts by Kristofer Hallén.
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February 24, 2025 at 7:37 PM
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Two short book reviews, great if you want more traditional Sherlock Holmes stories.

sherlock.kristoferhallen.com/post/further...
sherlock.kristoferhallen.com/post/further...

#sherlockholmes
The further memoirs of Sherlock Holmes
If you want more Sherlock Holmes stories in the style of Conan Doyle you get seven well written stories with good mysteries.
sherlock.kristoferhallen.com
February 24, 2025 at 7:35 PM
kristoferhallen.bsky.social
Book review - "Ask your developer". The "rules" for setting up a team is something I think about a lot. "you must know the team mission, the team customer (can be internal) and how to measure progress (that is in line with the mission).
#softwaredevelopment

kristoferhallen.com/posts/askyou...
Book review: Ask your developer
Ask Your Developer: How to Harness the Power of Software Developers and Win in the 21st Century by Jeff Lawson was the book that influenced me the most last year. It is about how to run a software dev...
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February 16, 2025 at 4:48 PM
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Why blog if nobody reads it? Good reasoning, in line with my own thinking. Updated my own reasoning for blogging. kristoferhallen.com/posts/whyiwr...

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Why Blog If Nobody Reads It?
What's the point of blogging?
andysblog.uk
February 16, 2025 at 4:09 PM
kristoferhallen.bsky.social
Next Sherlock Holmes book, Sherlock Holmes horror short stories. The twists in Neil Gaimans A study in Emerald are great, a combination of a well known Sherlock London and in the shadows a Lovecraftian world. #sherlockholmes

sherlock.kristoferhallen.com/post/shadows...
February 2, 2025 at 4:27 PM
kristoferhallen.bsky.social
Is old technology always bad? Chesterton´s fence and being proud of what you have. kristoferhallen.com/posts/cheste...

Should think about what "Software development according to Chesterton" would look like. Any proposals?

#chestertonsfence #softwaredevelopment
Chesterton´s fence and being proud of what you have
Chesterton’s fence is “the principle that reforms should not be made until the reasoning behind the existing state of affairs is understood.” Wikipedia. In software development think about is as don’t...
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February 2, 2025 at 4:02 PM
kristoferhallen.bsky.social
A great Sherlock Holmes book, hard to put down! Art in the blood by @macbird.bsky.social
sherlock.kristoferhallen.com/post/artinth...

#sherlockholmes
Art in the blood
Holmes is in a really bad shape, again using cocaine to handle the boredom caused by a lack of interesting cases to work on. But a missing statue and a beautiful french singer worried about her child ...
sherlock.kristoferhallen.com
January 27, 2025 at 5:53 PM
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Adding comics to the Sherlock Holmes library. sherlock.kristoferhallen.com/post/insidet...
#sherlockholmes #comics
January 19, 2025 at 6:33 PM
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Starting the year with a book review, The unicorn project. How can an efficient, fast and great workplace be created in a large software development company using DevOps methodology? #devops

kristoferhallen.com/posts/theuni...
Book review: The unicorn project
The Unicorn project is a book about how to (and how not to) develop software in a large company. How do you go from an inefficient, slow and frustrating work environment to a setup where you deliver v...
kristoferhallen.com
January 12, 2025 at 6:37 PM