Michael Koper
@michaelkoper.com
Dad of two - Founder of https://nusii.com - Bootstrapper - Ruby on Rails
Pinned
Michael Koper
@michaelkoper.com
· Oct 22
Hello again!
We are doing introductions?
I'm Dutch living in Madrid, Spain. I have been working on my own startup Nusii (online proposal software) for 10 the last 10 years.
I recently started to do some temporary freelancing on the side just for fun.
I like playing the drums 🥁
We are doing introductions?
I'm Dutch living in Madrid, Spain. I have been working on my own startup Nusii (online proposal software) for 10 the last 10 years.
I recently started to do some temporary freelancing on the side just for fun.
I like playing the drums 🥁
Started a new experiment. Lets see if Laravel people need Proposal Software 😊
November 19, 2025 at 12:10 PM
Started a new experiment. Lets see if Laravel people need Proposal Software 😊
I'm feeling like the small guy that keeps dodging all the punches from the big guys. Dodged the AWS and Cloudflare outages!
November 19, 2025 at 9:37 AM
I'm feeling like the small guy that keeps dodging all the punches from the big guys. Dodged the AWS and Cloudflare outages!
I'm starting to create many Claude Code commands recently. One of those things of, why didn't I do this before?
November 19, 2025 at 9:25 AM
I'm starting to create many Claude Code commands recently. One of those things of, why didn't I do this before?
I just sold my old monitor with @benediktdeicke.com 's UserList sticker on it.
"Sorry I forgot to take that sticker off"
"Don't worry, I like it"
😂
"Sorry I forgot to take that sticker off"
"Don't worry, I like it"
😂
November 18, 2025 at 9:32 AM
I just sold my old monitor with @benediktdeicke.com 's UserList sticker on it.
"Sorry I forgot to take that sticker off"
"Don't worry, I like it"
😂
"Sorry I forgot to take that sticker off"
"Don't worry, I like it"
😂
I had a small discussion a while ago where they said that unit tests should never hit the database.
I honestly don't know why it is such a big deal? It is so much easier to write. Unit tests are also the fastest test to run. 545 tests under a second ¯\_(ツ)_/¯
I honestly don't know why it is such a big deal? It is so much easier to write. Unit tests are also the fastest test to run. 545 tests under a second ¯\_(ツ)_/¯
November 17, 2025 at 10:43 AM
I had a small discussion a while ago where they said that unit tests should never hit the database.
I honestly don't know why it is such a big deal? It is so much easier to write. Unit tests are also the fastest test to run. 545 tests under a second ¯\_(ツ)_/¯
I honestly don't know why it is such a big deal? It is so much easier to write. Unit tests are also the fastest test to run. 545 tests under a second ¯\_(ツ)_/¯
Also for the Ruby people in Madrid. That mountain chain in the back is called La Pedriza and it is absolutely beautiful. I’m thinking of organising a one day retreat with Ruby people. Hiking plus Ruby talk.
Please let me know if you’re interested!
Please let me know if you’re interested!
Last 6 months I’ve been working so much that I forgot that I live in such a beautiful place.
Two weeks ago I started to work less and started to go back to running twice a week.
Two weeks ago I started to work less and started to go back to running twice a week.
November 16, 2025 at 12:35 PM
Also for the Ruby people in Madrid. That mountain chain in the back is called La Pedriza and it is absolutely beautiful. I’m thinking of organising a one day retreat with Ruby people. Hiking plus Ruby talk.
Please let me know if you’re interested!
Please let me know if you’re interested!
Last 6 months I’ve been working so much that I forgot that I live in such a beautiful place.
Two weeks ago I started to work less and started to go back to running twice a week.
Two weeks ago I started to work less and started to go back to running twice a week.
November 16, 2025 at 12:32 PM
Last 6 months I’ve been working so much that I forgot that I live in such a beautiful place.
Two weeks ago I started to work less and started to go back to running twice a week.
Two weeks ago I started to work less and started to go back to running twice a week.
For the Madrileños here. A friend of mine is going to give a concert with his new band the 4th of December in Madrid.
I'm going!
Ticket available here: linktr.ee/elerror
And their newly released song is on there as well.
I'm going!
Ticket available here: linktr.ee/elerror
And their newly released song is on there as well.
el error | Instagram, Facebook | Linktree
Powertrio de punkrock en español con matices de hardcore y pop vomitado. Eclécticos, como buenas hijas del siglo pasado no nos gusta las etiquetas, ni las bios.
linktr.ee
November 13, 2025 at 12:14 PM
For the Madrileños here. A friend of mine is going to give a concert with his new band the 4th of December in Madrid.
I'm going!
Ticket available here: linktr.ee/elerror
And their newly released song is on there as well.
I'm going!
Ticket available here: linktr.ee/elerror
And their newly released song is on there as well.
Creating a Zapier integration is... time consuming... 🤪
November 13, 2025 at 12:09 PM
Creating a Zapier integration is... time consuming... 🤪
I recently changed computers and I must say, personal dotfiles, homebrew, and 1Password are a lifesaver!
I could have done it with Time Machine, but I always like to start from scratch for some reason.
I could have done it with Time Machine, but I always like to start from scratch for some reason.
November 12, 2025 at 10:23 AM
I recently changed computers and I must say, personal dotfiles, homebrew, and 1Password are a lifesaver!
I could have done it with Time Machine, but I always like to start from scratch for some reason.
I could have done it with Time Machine, but I always like to start from scratch for some reason.
15 years ago I made an with a friend that we never launched (even though it was sort of finished). I liked skateboarding but didn't know anybody in Madrid. So we made crowdboarding.com (right now for sale, not by me).
It was a two-sided market place for skateboarders who wanted to meet people.
It was a two-sided market place for skateboarders who wanted to meet people.
November 12, 2025 at 10:10 AM
15 years ago I made an with a friend that we never launched (even though it was sort of finished). I liked skateboarding but didn't know anybody in Madrid. So we made crowdboarding.com (right now for sale, not by me).
It was a two-sided market place for skateboarders who wanted to meet people.
It was a two-sided market place for skateboarders who wanted to meet people.
Yesterday I was struggling with some code all day. Today I walked the dog for one hour only thinking about this problem and within 10 minutes, I got it working!
The lesson? Get a dog if you want to get things done!
The lesson? Get a dog if you want to get things done!
November 12, 2025 at 10:03 AM
Yesterday I was struggling with some code all day. Today I walked the dog for one hour only thinking about this problem and within 10 minutes, I got it working!
The lesson? Get a dog if you want to get things done!
The lesson? Get a dog if you want to get things done!
What have you done @lucianghinda.com ???? 😱
November 12, 2025 at 7:08 AM
What have you done @lucianghinda.com ???? 😱
Somebody has a decent webcam to recommend for video calls and screencast. Doesn't need to be pro, just slightly better than the standard on a MBP.
November 6, 2025 at 5:53 PM
Somebody has a decent webcam to recommend for video calls and screencast. Doesn't need to be pro, just slightly better than the standard on a MBP.
And the winner for the most useless macOS UX is, ...
😂
😂
November 6, 2025 at 1:19 PM
And the winner for the most useless macOS UX is, ...
😂
😂
M4 Max compare to M1 Pro
Test suite runs more than 4 times faster! 😱
Test suite runs more than 4 times faster! 😱
About to buy a Mac Studio M4 Max, 64GB RAM 😱
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
November 5, 2025 at 6:01 PM
M4 Max compare to M1 Pro
Test suite runs more than 4 times faster! 😱
Test suite runs more than 4 times faster! 😱
About to buy a Mac Studio M4 Max, 64GB RAM 😱
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
November 2, 2025 at 3:41 PM
About to buy a Mac Studio M4 Max, 64GB RAM 😱
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
For some unknown reason I prefer a desktop instead of a laptop.
Anybody here regretted buying a Mac Studio?
I'm going to do something I never done before, using you guys as an accountability partner 😅
My SaaS went down the last year and especially this month. I'm going to get it back up again and share here what I'm doing.
I don't like sharing revenue publicly, but I'm going to take current rev as base
My SaaS went down the last year and especially this month. I'm going to get it back up again and share here what I'm doing.
I don't like sharing revenue publicly, but I'm going to take current rev as base
October 31, 2025 at 12:11 PM
I'm going to do something I never done before, using you guys as an accountability partner 😅
My SaaS went down the last year and especially this month. I'm going to get it back up again and share here what I'm doing.
I don't like sharing revenue publicly, but I'm going to take current rev as base
My SaaS went down the last year and especially this month. I'm going to get it back up again and share here what I'm doing.
I don't like sharing revenue publicly, but I'm going to take current rev as base
Are you like 8 years old? No, but today I’m Drumbledore 😅
October 31, 2025 at 11:01 AM
Are you like 8 years old? No, but today I’m Drumbledore 😅
Madrid.rb is back this month! I might join.
In Madrid? Please consider!
In Madrid? Please consider!
Esta semana vuelve @madridrb.com
!!
El jueves 30, a las 19:30, Carla Urrea
nos hablará de su experiencia escribiendo la gem para OpenFGA.
Nos vemos en la nueva sede de Lingokids, en Madrid.
Regśitrate en www.madridrb.com/events/octub...
!!
El jueves 30, a las 19:30, Carla Urrea
nos hablará de su experiencia escribiendo la gem para OpenFGA.
Nos vemos en la nueva sede de Lingokids, en Madrid.
Regśitrate en www.madridrb.com/events/octub...
Madrid.rb - Octubre 2025: Building a ruby gem for OpenFGA
Madrid.rb - Octubre 2025: Building a ruby gem for OpenFGA - Grupo de usuarios de Ruby de Madrid
www.madridrb.com
October 28, 2025 at 7:53 AM
Madrid.rb is back this month! I might join.
In Madrid? Please consider!
In Madrid? Please consider!
Snow Leopard was the best OS ever made. Reason: no new feature, only performance/memory improvements and bug fixes.
Also and OS name you could remember. I cant name you the last 5 versions, even if you point a gun to my head 🤣
Also and OS name you could remember. I cant name you the last 5 versions, even if you point a gun to my head 🤣
October 28, 2025 at 7:48 AM
Snow Leopard was the best OS ever made. Reason: no new feature, only performance/memory improvements and bug fixes.
Also and OS name you could remember. I cant name you the last 5 versions, even if you point a gun to my head 🤣
Also and OS name you could remember. I cant name you the last 5 versions, even if you point a gun to my head 🤣
So sad, one day after I saw his last video, GM Daniel Naroditsky passed away.
I'm not good at chess but really enjoyed his videos, he made sense of this complex game. It was fascinating hearing him, trully was one of the best teachers out there.
29 years old :(
I'm not good at chess but really enjoyed his videos, he made sense of this complex game. It was fascinating hearing him, trully was one of the best teachers out there.
29 years old :(
October 25, 2025 at 10:41 AM
So sad, one day after I saw his last video, GM Daniel Naroditsky passed away.
I'm not good at chess but really enjoyed his videos, he made sense of this complex game. It was fascinating hearing him, trully was one of the best teachers out there.
29 years old :(
I'm not good at chess but really enjoyed his videos, he made sense of this complex game. It was fascinating hearing him, trully was one of the best teachers out there.
29 years old :(
Seems legit, must be an old invoice because Nathan left 6 years ago. 😅
October 24, 2025 at 11:04 AM
Seems legit, must be an old invoice because Nathan left 6 years ago. 😅
Never heard this one before, I choose Nusii over a competitor because I like your vibe better 😎
October 22, 2025 at 12:36 PM
Never heard this one before, I choose Nusii over a competitor because I like your vibe better 😎