Piotr Kafel
@piotrkafel.com
Staff Engineer @woltapp on a mission to help others grow into a technical leadership role. Ex @GrouponEng @ShopifyEng.
Yesterday worked on changes in code base. I had a very particular way I wanted to solve a problem. I described all the changes I want to make to Cursor.
For the first time every AI told me "Nah bro, your suggestion is bullshit. Let me do it in a completely different way"🤯
For the first time every AI told me "Nah bro, your suggestion is bullshit. Let me do it in a completely different way"🤯
February 3, 2026 at 11:12 AM
Yesterday worked on changes in code base. I had a very particular way I wanted to solve a problem. I described all the changes I want to make to Cursor.
For the first time every AI told me "Nah bro, your suggestion is bullshit. Let me do it in a completely different way"🤯
For the first time every AI told me "Nah bro, your suggestion is bullshit. Let me do it in a completely different way"🤯
Im currently reading The Devils by Joe Abercrombie... What a book 😂
“On the contrary, I am a great admirer of the tenets of your religion. I merely find it a shame that the Saved are, as a rule, so little like their Saviour.”
“On the contrary, I am a great admirer of the tenets of your religion. I merely find it a shame that the Saved are, as a rule, so little like their Saviour.”
January 23, 2026 at 11:05 PM
Im currently reading The Devils by Joe Abercrombie... What a book 😂
“On the contrary, I am a great admirer of the tenets of your religion. I merely find it a shame that the Saved are, as a rule, so little like their Saviour.”
“On the contrary, I am a great admirer of the tenets of your religion. I merely find it a shame that the Saved are, as a rule, so little like their Saviour.”
Share with your annoying colleges who like to waste time on pointless discussions (especially if they discuss stupid things like this).
www.tabsvsspaces.sh
www.tabsvsspaces.sh
Tabs vs Spaces - Cast Your Vote
The eternal developer debate. Cast your €1.99 vote: Tabs or Spaces? Put money where your mouth is.
www.tabsvsspaces.sh
January 23, 2026 at 10:59 PM
Share with your annoying colleges who like to waste time on pointless discussions (especially if they discuss stupid things like this).
www.tabsvsspaces.sh
www.tabsvsspaces.sh
I tried Claude's code review plugin yesterday... Aaaaaand all my tokens are gone 😅
January 22, 2026 at 3:07 PM
I tried Claude's code review plugin yesterday... Aaaaaand all my tokens are gone 😅
Tip for vibe coders:
If you are using Vercel (or other similar SaaS) remember to black list .md files. At least Vercel by default will make your claude.md publicly available.
If you are using Vercel (or other similar SaaS) remember to black list .md files. At least Vercel by default will make your claude.md publicly available.
January 19, 2026 at 4:34 PM
Tip for vibe coders:
If you are using Vercel (or other similar SaaS) remember to black list .md files. At least Vercel by default will make your claude.md publicly available.
If you are using Vercel (or other similar SaaS) remember to black list .md files. At least Vercel by default will make your claude.md publicly available.
I'm wondering if the natural grumpiness of Easter Europeans is one of the reasons why they are such good engineers (they always assume things will go wrong) 🤔
January 15, 2026 at 9:55 PM
I'm wondering if the natural grumpiness of Easter Europeans is one of the reasons why they are such good engineers (they always assume things will go wrong) 🤔
I cannot build frontend but I can build half decent backend.
Since I have hired this guy, called Claude, building things is so much fun. I can focus on what I know and let him handle the UI.
I need to write him a proper recommendation on LinkedIn. He has a bright career ahead❤️
Since I have hired this guy, called Claude, building things is so much fun. I can focus on what I know and let him handle the UI.
I need to write him a proper recommendation on LinkedIn. He has a bright career ahead❤️
January 4, 2026 at 9:40 AM
I cannot build frontend but I can build half decent backend.
Since I have hired this guy, called Claude, building things is so much fun. I can focus on what I know and let him handle the UI.
I need to write him a proper recommendation on LinkedIn. He has a bright career ahead❤️
Since I have hired this guy, called Claude, building things is so much fun. I can focus on what I know and let him handle the UI.
I need to write him a proper recommendation on LinkedIn. He has a bright career ahead❤️
"There are no shortcuts around quality and quality starts with people" Steve Jobs
December 28, 2025 at 3:28 PM
"There are no shortcuts around quality and quality starts with people" Steve Jobs
Merry Christmas folks!
I hope you will give your friends and family undivided attention instead of just checking from time to time if you agent finished implementation of next feature 😅
I hope you will give your friends and family undivided attention instead of just checking from time to time if you agent finished implementation of next feature 😅
December 24, 2025 at 2:37 PM
Merry Christmas folks!
I hope you will give your friends and family undivided attention instead of just checking from time to time if you agent finished implementation of next feature 😅
I hope you will give your friends and family undivided attention instead of just checking from time to time if you agent finished implementation of next feature 😅
Found on the wall of Uber Arena in Berlin ❤️
December 21, 2025 at 8:14 AM
Found on the wall of Uber Arena in Berlin ❤️
AI just made programming fun again ❤️
December 15, 2025 at 10:39 PM
AI just made programming fun again ❤️
I got bored by checking if my agent finished working and decided to implement some features myself... Like a damn savage!
December 14, 2025 at 8:45 PM
I got bored by checking if my agent finished working and decided to implement some features myself... Like a damn savage!
We can now write code so fast that reviewing it becomes a bottleneck.
Im looking forward to first company that will decide that AI based PR review is enough.
Im looking forward to first company that will decide that AI based PR review is enough.
December 13, 2025 at 5:02 PM
We can now write code so fast that reviewing it becomes a bottleneck.
Im looking forward to first company that will decide that AI based PR review is enough.
Im looking forward to first company that will decide that AI based PR review is enough.
Writing code has never been this cheap
December 13, 2025 at 10:05 AM
Writing code has never been this cheap
I just wrote:
git stash poop
How is your day going? 😂
git stash poop
How is your day going? 😂
March 24, 2025 at 9:01 AM
I just wrote:
git stash poop
How is your day going? 😂
git stash poop
How is your day going? 😂
Coffee with the view... Good morning!
March 18, 2025 at 7:44 AM
Coffee with the view... Good morning!
This week I wrote an idempotent POST resource. Sue me!
March 16, 2025 at 5:20 PM
This week I wrote an idempotent POST resource. Sue me!
So much of my liking a book depends on my schedule.
I can read the most amazing book but if I got an important project I need to deliver there is no way I will like a book if I can read 1-2 chapters per week only.
I can read the most amazing book but if I got an important project I need to deliver there is no way I will like a book if I can read 1-2 chapters per week only.
March 9, 2025 at 1:06 PM
So much of my liking a book depends on my schedule.
I can read the most amazing book but if I got an important project I need to deliver there is no way I will like a book if I can read 1-2 chapters per week only.
I can read the most amazing book but if I got an important project I need to deliver there is no way I will like a book if I can read 1-2 chapters per week only.
Back in my days...
Just joking, it's way before my days but it's pretty cool ❤️
Just joking, it's way before my days but it's pretty cool ❤️
March 9, 2025 at 12:32 PM
Back in my days...
Just joking, it's way before my days but it's pretty cool ❤️
Just joking, it's way before my days but it's pretty cool ❤️
Going for a run after sitting through the whole winter is such a pain 😰
February 23, 2025 at 10:52 PM
Going for a run after sitting through the whole winter is such a pain 😰
I have enough of this winter... 🙄
February 16, 2025 at 11:14 AM
I have enough of this winter... 🙄
All those companies that claim they will replace software engineers with AI are up for a nice surprise 😅
February 16, 2025 at 8:37 AM
All those companies that claim they will replace software engineers with AI are up for a nice surprise 😅
Just noticed @datadoghq is hiring Staff Engs in Germany. This is new, right?
I havent seen engineering job offers from DD in Germany before 🤔
I havent seen engineering job offers from DD in Germany before 🤔
February 15, 2025 at 10:29 PM
Just noticed @datadoghq is hiring Staff Engs in Germany. This is new, right?
I havent seen engineering job offers from DD in Germany before 🤔
I havent seen engineering job offers from DD in Germany before 🤔
Have I mentioned that I will see @linkinpark this year? ❤️
a man and a woman in suits and ties are screaming
ALT: a man and a woman in suits and ties are screaming
media.tenor.com
February 15, 2025 at 9:57 AM
Have I mentioned that I will see @linkinpark this year? ❤️
My son infected me and my wife. Lovely end of a weekend.
a woman in a suit says everything hurts and i 'm dying .
ALT: a woman in a suit says everything hurts and i 'm dying .
media.tenor.com
February 9, 2025 at 6:47 PM
My son infected me and my wife. Lovely end of a weekend.