Kevlin Henney
@kevlin.bsky.social
consultant · father · he/him · human (very) · husband · itinerant · programmer · keynote speaker · technologist · trainer · writer
Reposted by Kevlin Henney
My cartoon for this week’s New Scientist.
p.s. I have a new book of science cartoons: www.tomgauld.com/comic-books-v2
p.s. I have a new book of science cartoons: www.tomgauld.com/comic-books-v2
November 30, 2025 at 11:40 AM
My cartoon for this week’s New Scientist.
p.s. I have a new book of science cartoons: www.tomgauld.com/comic-books-v2
p.s. I have a new book of science cartoons: www.tomgauld.com/comic-books-v2
Reposted by Kevlin Henney
And it's up! All together now...
🎶 Somebody told me
the user provider
should use an adaptor
to proxy the query
factory builder... 🎶
www.youtube.com/watch?v=p03o...
🎶 Somebody told me
the user provider
should use an adaptor
to proxy the query
factory builder... 🎶
www.youtube.com/watch?v=p03o...
November 28, 2025 at 3:15 PM
And it's up! All together now...
🎶 Somebody told me
the user provider
should use an adaptor
to proxy the query
factory builder... 🎶
www.youtube.com/watch?v=p03o...
🎶 Somebody told me
the user provider
should use an adaptor
to proxy the query
factory builder... 🎶
www.youtube.com/watch?v=p03o...
Reposted by Kevlin Henney
Heads up! I'm running two one-day workshops at @ndcconferences.com London in January:
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science | NDC London 2026
Most software developers don't have qualifications or a background in computer science or software engineering. Given the diversity of both software development and developers — and how far enthusiasm...
ndclondon.com
November 28, 2025 at 11:22 AM
Heads up! I'm running two one-day workshops at @ndcconferences.com London in January:
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
Heads up! I'm running two one-day workshops at @ndcconferences.com London in January:
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science | NDC London 2026
Most software developers don't have qualifications or a background in computer science or software engineering. Given the diversity of both software development and developers — and how far enthusiasm...
ndclondon.com
November 28, 2025 at 11:22 AM
Heads up! I'm running two one-day workshops at @ndcconferences.com London in January:
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
The Hitchhiker's Guide to Computer Science
Monday 2026-01-26
ndclondon.com/workshops/th...
Program with GUTs (Good Unit Tests)
Tuesday 2026-01-27
ndclondon.com/workshops/pr...
Reposted by Kevlin Henney
Which language is this? C or C++
Is it a bug a feature 😂
Is it a bug a feature 😂
November 28, 2025 at 11:00 AM
Which language is this? C or C++
Is it a bug a feature 😂
Is it a bug a feature 😂
Reposted by Kevlin Henney
We get the best results from "AI" coding assistants when we:
* Take small steps
* Test, review and refactor continuously
* Use version control to keep our code shippable
* Integrate continuously
* Cleanly separate concerns
If only there was somewhere we could learn these skills!
* Take small steps
* Test, review and refactor continuously
* Use version control to keep our code shippable
* Integrate continuously
* Cleanly separate concerns
If only there was somewhere we could learn these skills!
November 26, 2025 at 8:18 AM
We get the best results from "AI" coding assistants when we:
* Take small steps
* Test, review and refactor continuously
* Use version control to keep our code shippable
* Integrate continuously
* Cleanly separate concerns
If only there was somewhere we could learn these skills!
* Take small steps
* Test, review and refactor continuously
* Use version control to keep our code shippable
* Integrate continuously
* Cleanly separate concerns
If only there was somewhere we could learn these skills!
Reposted by Kevlin Henney
AI is changing software development. These 3 talks show you how to stay in control:
@kevlin.bsky.social : What it means to be the human in the loop (hint: not just LGTM-ing generated code)
@kevlin.bsky.social : What it means to be the human in the loop (hint: not just LGTM-ing generated code)
November 25, 2025 at 9:07 AM
AI is changing software development. These 3 talks show you how to stay in control:
@kevlin.bsky.social : What it means to be the human in the loop (hint: not just LGTM-ing generated code)
@kevlin.bsky.social : What it means to be the human in the loop (hint: not just LGTM-ing generated code)
Reposted by Kevlin Henney
Lean Code: Improving the Value of Code and the Flow of Development
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Lean Code: Improving the Value of Code and the Flow of Development - Monthly Masterclass - Tech Cornwall
techcornwall.co.uk
November 21, 2025 at 3:32 PM
Lean Code: Improving the Value of Code and the Flow of Development
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Reposted by Kevlin Henney
Two blog posts under the heading Think for Yourself:
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
Think for Yourself
Understand and improve on LLM-generated code
kevlinhenney.medium.com
November 21, 2025 at 9:29 AM
Two blog posts under the heading Think for Yourself:
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
Lean Code: Improving the Value of Code and the Flow of Development
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Lean Code: Improving the Value of Code and the Flow of Development - Monthly Masterclass - Tech Cornwall
techcornwall.co.uk
November 21, 2025 at 3:32 PM
Lean Code: Improving the Value of Code and the Flow of Development
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Coming up next week (Thursday 27th November), 2-hour session (11:00–13:00 GMT) by me hosted by Tech Cornwall
techcornwall.co.uk/training/lea...
Two blog posts under the heading Think for Yourself:
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
Think for Yourself
Understand and improve on LLM-generated code
kevlinhenney.medium.com
November 21, 2025 at 9:29 AM
Two blog posts under the heading Think for Yourself:
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
kevlinhenney.medium.com/think-for-yo...
Reposted by Kevlin Henney
Long version (90') of my talk on The Past, Present and Future of Programming Languages at the @accuconf.bsky.social this year
www.youtube.com/watch?v=8-3Q...
www.youtube.com/watch?v=8-3Q...
The Past, Present and Future of Programming Languages - Kevlin Henney - ACCU 2025
YouTube video by ACCU Conference
www.youtube.com
November 20, 2025 at 6:16 AM
Long version (90') of my talk on The Past, Present and Future of Programming Languages at the @accuconf.bsky.social this year
www.youtube.com/watch?v=8-3Q...
www.youtube.com/watch?v=8-3Q...
Long version (90') of my talk on The Past, Present and Future of Programming Languages at the @accuconf.bsky.social this year
www.youtube.com/watch?v=8-3Q...
www.youtube.com/watch?v=8-3Q...
The Past, Present and Future of Programming Languages - Kevlin Henney - ACCU 2025
YouTube video by ACCU Conference
www.youtube.com
November 20, 2025 at 6:16 AM
Long version (90') of my talk on The Past, Present and Future of Programming Languages at the @accuconf.bsky.social this year
www.youtube.com/watch?v=8-3Q...
www.youtube.com/watch?v=8-3Q...
Reposted by Kevlin Henney
Windows Digital Signage mode hides BSoDs after 15 seconds
: BORK is borked
www.theregister.com
November 19, 2025 at 8:34 AM
Reposted by Kevlin Henney
Wanna see a fun guitar hack? I put a Schaller 3D bridge in my charity shop PRS and built a custom circuit to pan the individual strings left/right so you get big wide 3D chords.
November 17, 2025 at 12:29 PM
Wanna see a fun guitar hack? I put a Schaller 3D bridge in my charity shop PRS and built a custom circuit to pan the individual strings left/right so you get big wide 3D chords.
Reposted by Kevlin Henney
I used a price scanner to check a product, and it costs a @kevlin.bsky.social 😀
November 17, 2025 at 10:26 AM
I used a price scanner to check a product, and it costs a @kevlin.bsky.social 😀
Reposted by Kevlin Henney
last night at a bar I learned that they improved pinball by making machines that are entirely computers and they’re much better than what we had before
November 16, 2025 at 6:43 PM
last night at a bar I learned that they improved pinball by making machines that are entirely computers and they’re much better than what we had before
Reposted by Kevlin Henney
Technical excellence & coaching
Real-world lessons from the trenches
Speakers include: @settling-mud.bsky.social , Gregor Hohpe, @kevlin.bsky.social , Birgitta Boeckeler, @esilva.net, @eoinwoods.bsky.social , @tastapod.com , and 20+ more.
Real-world lessons from the trenches
Speakers include: @settling-mud.bsky.social , Gregor Hohpe, @kevlin.bsky.social , Birgitta Boeckeler, @esilva.net, @eoinwoods.bsky.social , @tastapod.com , and 20+ more.
November 16, 2025 at 10:38 AM
Technical excellence & coaching
Real-world lessons from the trenches
Speakers include: @settling-mud.bsky.social , Gregor Hohpe, @kevlin.bsky.social , Birgitta Boeckeler, @esilva.net, @eoinwoods.bsky.social , @tastapod.com , and 20+ more.
Real-world lessons from the trenches
Speakers include: @settling-mud.bsky.social , Gregor Hohpe, @kevlin.bsky.social , Birgitta Boeckeler, @esilva.net, @eoinwoods.bsky.social , @tastapod.com , and 20+ more.
Reposted by Kevlin Henney
@kevlin.bsky.social Parking payment in Stockholm. To be fair, it's a new system that is not yet operational.
November 15, 2025 at 2:42 PM
@kevlin.bsky.social Parking payment in Stockholm. To be fair, it's a new system that is not yet operational.
Reposted by Kevlin Henney
On the blog: Think for Yourself (Flashback Edition)
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
Think for Yourself (Flashback Edition)
TL;DR: the advice is the same as it ever was
kevlinhenney.medium.com
November 14, 2025 at 5:15 PM
On the blog: Think for Yourself (Flashback Edition)
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
On the blog: Think for Yourself (Flashback Edition)
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
Think for Yourself (Flashback Edition)
TL;DR: the advice is the same as it ever was
kevlinhenney.medium.com
November 14, 2025 at 5:15 PM
On the blog: Think for Yourself (Flashback Edition)
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
"If we focus on tools without training our sensibility, we should be unsurprised when our tool use is insensible."
kevlinhenney.medium.com/think-for-yo...
Reposted by Kevlin Henney
What a great 3-day software architecture workshop organized by @sddconf.bsky.social, instructed by @kevlin.bsky.social #softwarearchitecture #design #domain #change #stepback #agility #requirements #interface #modularity #rateofchange #adr
November 13, 2025 at 8:42 PM
What a great 3-day software architecture workshop organized by @sddconf.bsky.social, instructed by @kevlin.bsky.social #softwarearchitecture #design #domain #change #stepback #agility #requirements #interface #modularity #rateofchange #adr
Reposted by Kevlin Henney
Once full of optimism, the future now feels uncertain. @kevlin.bsky.social & @boicy.bovon.org explore how our view of the future has changed and what history teaches us about innovation ahead.
The Way the Future Was • Kevlin Henney & James Lewis • GOTO 2025
This presentation was recorded at GOTO Copenhagen 2025. #GOTOcon #GOTOcph
https://gotocph.com
Kevlin Henney - Speaker, Writer, Author and Trainer @KevlinHenney
James Lewis - Director at…
youtu.be
November 13, 2025 at 1:01 PM
Once full of optimism, the future now feels uncertain. @kevlin.bsky.social & @boicy.bovon.org explore how our view of the future has changed and what history teaches us about innovation ahead.
Reposted by Kevlin Henney
On the blog: Think for Yourself (Flashback Edition)
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
Think for Yourself (Flashback Edition)
TL;DR: the advice is the same as it ever was
kevlinhenney.medium.com
November 12, 2025 at 8:56 AM
On the blog: Think for Yourself (Flashback Edition)
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
On the blog: Think for Yourself (Flashback Edition)
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
Think for Yourself (Flashback Edition)
TL;DR: the advice is the same as it ever was
kevlinhenney.medium.com
November 12, 2025 at 8:56 AM
On the blog: Think for Yourself (Flashback Edition)
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...
"The quality of what you are building is not independent of you, of what you know or of how you go about your work. That will inform how you employ any tool or technique."
kevlinhenney.medium.com/think-for-yo...