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Office on Willem's Blog

Giving AI Training

Teaching folks about the superpowers of GPT

Oct. 14, 2023
Explore the transformative power of AI in everyday work: Dive into firsthand insights from a recent AI training session that's reshaping professional landscapes.

Yesterday, I had the pleasure of leading a training session on the application of cutting-edge AI techniques, such as OpenAI's large language models (GPT), for a team of individuals from varied backgrounds, education levels, and disciplines. The results surprised me!

Migrating to the Cloud

Clearing an on-premise server room

June 30, 2021
Helping a customer clear its on-premise data room and migrate to the cloud: an adventure full of cables, cabinets and bandwidth!

For a Dutch organisation that serves customers throughout Europe, I was asked to help dismantle a live server room. Instead of simply pulling the plugs, some of the services had to be migrated to the cloud. For fun and inspiration I share three different strategies to do so.

Upgrading a 27-inch iMac 5K to 14 terabytes

Replacing the Fusion Drive with both a SSD and an harddisk

July 30, 2020
This month I nearly destroyed my iMac during an attempt to upgrade it. Thanks to determination and some spare time I was able to resurrect it from the death!

This month I did an attempt to upgrade my 27-inch iMac 5K. I wanted to replace the fusion drive with a SSD and a large hardisk. In addition I decided this was a good time to upgrade the RAM memory as well, maxing it out at 64GB. I was on a mission to create the ultimate iMac, but things didn't go to plan!

Talking tablets: what makes a great tablet?

Working with Microsoft Surface Pro X

Apr. 14, 2020
Over the past few weeks I worked with Microsoft Surface Pro X to see if it is any good, can it be your main computer?

Earlier this year Microsoft released their brand new Surface Pro X tablet computer, in many ways this is a forward thinking device. As I like working with tablets I wondered what exactly makes a great tablet? Is Surface Pro X any good? Read along to find out.

Your own addressbook and calendar cloud

Share contacts, agendas and tasks with CardDAV/CalDAV

Feb. 28, 2020
You can setup a CardDAV/CalDAV server to manage your own contacts, addressbook, agenda and task data and share it between your devices.

If you use different devices and computers to get things done, you might want to synchronise contacts, agendas and tasks. You can use any of the 'big cloud' services for this, like Apple iCloud, Microsoft Office 365 and Google Gmail. But, if you prefer not to share your addressbook and calendar with big American companies, you can do it yourself.

Building a professional 72TB NAS

Configuration and installation of an HPE ProLiant DL380 server

Nov. 22, 2019
This month I installed a professional HPE ProLiant DL380p server in a datacenter in Amsterdam, read this post to see how this was done!

Over the past few years I have been moving my data and work from local computers (mostly laptops) into the cloud. Cloud computing is done by servers in a datacenter, powerful computers that do the hard work. As my company grew, I needed more capacity. It was time to add some power to my cloud!

Servicing a robot vacuum cleaner

My iRobot Roomba is now running for 8 years and counting!

Mar. 20, 2019
This week it was time for some maintenance on my iRobot Roomba robot vacuum cleaner. Read along to learn how I did it.

Back in 2011 I got myself an iRobot Roomba 555 robot vacuum cleaner to automatically clean my apartment. It's a little circle shaped robot that drives around sucking up dust bunnies. Over the years it has bravely fought the dangers of my apartment... shoes, cables, carpet and belts. It survived and it is still working perfectly! This week it was time for some maintenance.

One year on the ultimate commuter bike

6000KM in 12 months with Gates CDN/CDX and Shimano Alfine

Feb. 27, 2019
Answering questions from one of the most popular posts of last year, I am reviewing my commuter bike after one year of extensive use through winter and summer.

A year ago I tried to create the ultimate commuter bike, a modified Sensa Cintura with the Gates CDN/CDX carbon belt drive. I received lots of messages from cyclists and commuters from all over the world. From the Swiss alps, France, Italy, Germany, United States and even "down under", Australia! You all wanted to know: how does the upgraded bike hold up?

Business in a bag

Using a waterproof backpack to fit my gear

Dec. 22, 2018
After much testing I have selected a bag and set of cases to fit my entire business, wherever I go.

Over the past few months I have been testing different bags and cases to fit everything I need to run my business. As I commute by bike, the bag needs to be waterproof. The problem with waterproof gear is that it is usually very bulky. I need my gear to be both portable and representative, a challenge worth a blog post!

Around town in an electric car

Driving the Smart Electric Drive (EQ fortwo)

Nov. 16, 2018
For one week I drove the electric Smart EQ fortwo in and around town. I found out what it's like to drive electrically: fun!

Earlier this month I drove around town for a week in an electric vehicle, a brand new Smart Electric Drive (EQ fortwo). I used it to commute, for my daily groceries and to visit family, friends and customers. What's it like to drive a fully electric car on a daily basis?

Is the Apple Watch the modern tool watch?

Testing the Apple Watch's usefulness in real life

Nov. 2, 2018
I tested the Apple Watch during my work in Frankfurt this week where I had to go inside an internet data centre.

This week I went to Frankfurt for business. I had to perform maintenance to servers in a data centre. This seemed like a great opportunity to test the Apple Watch's usefulness in real life (other than health and fitness). I wondered, is the Apple Watch the modern tool watch?

Off the grid: Working on 100% renewable energy

Collecting, storing and using solar electricity to power my phone, computer and wearables

Apr. 30, 2018
Learning from powering my personal devices using nothing but self generated electricity using a solar panel and power banks.

For the past 10 days I have powered my personal electronic devices (phone, computer, wearables) using nothing but energy collected using a small solar panel. I disconnected all grid-connected chargers. I hoped that by going off the grid, even in such a small way, I would gain insights that enable me to save energy (and money).

Tablet as main computer

Comparing the Microsoft Surface Pro to iPad Pro

Mar. 7, 2018
I have been using a tablet as my main computer for quite some time now. In this blog post I share you my experience on using Surface Pro and iPad Pro to get my work done.

For the past few weeks I have been using the Microsoft Surface Pro as my main computer. It's a modern tablet computer that can be used as laptop with the type cover. With the Surface Pen, it's a versatile PC that works in a lot of different ways. Time to find out if it's any good and how it compares to my other tablet computer, iPad Pro.

Creating the ultimate commuter bike

Riding at 35KM/h with Nexus Alfine 8 and Gates Carbon Drive

Feb. 24, 2018
Creating the ultimate commuter bike by upgrading the Sensa Cintura belt drive bike.

This winter I use a Sensa Cintura bike with a Gates Carbon belt drive as my daily commuter. It's a bike designed to be nice to ride thanks to its sporty lightweight frame. It's also meant to be low on maintenance thanks to the belt drive and Nexus Afline 8 integrated gear hub. After 1800KM in just eight weeks, it was time for some upgrades.

The day I killed my LAN

Turned off my local network and went 4G only

July 31, 2017
I killed my office LAN and went 4G only. Saves a lot of clutter, energy and money.

Today I called my provider to quit my office's ADSL internet subscription, I don't need it anymore. I have turned off my local area network and switched my workflow onto mobile internet only. The simplicity and savings actually surprised me so much, that I made blog post for it.

iPad Pro next to my primary machine

Using it with Apple Pencil as a creative powerhouse

Jan. 30, 2017
Using iPad Pro with Apple Pencil next to my computer to form a create powerhouse

I wanted see if I can find something better than my old fashioned pencil and paper that I use for designing software as professional developer. I knew iPad Pro from my test last summer, figuring out if it could replace my primary development machine. While it may not be able to completely replace my thrustworthy ThinkPad, it turned out to be a totally different story when it comes to paper.

iPad Pro as primary computer

testing iOS as primairy development platform

Aug. 15, 2016
Is the time right to use an iPad as primary development platform to get some real work done?

The lack of physical clutter, distracting branding, or blinking LED's makes the iPad Pro a textbook example of minimal design. My despiction of distraction explains my interest in using the iPad Pro as only computer to test if it is up to the task. Is Apple's latest effort on iOS enough to enable it to do serious development work?

All blog posts
Excessive dirt after a
Excessive dirt after a "normal" commute during winter time
iRobot Roomba bottom cover removed
iRobot Roomba bottom cover removed
Front wheel cleaning the bearings
Front wheel cleaning the bearings
Measuring energy usage with an in-line USB power monitor
Measuring energy usage with an in-line USB power monitor
Disconnecting the iSight's (Applespeak for webcam) USB cable
Disconnecting the iSight's (Applespeak for webcam) USB cable
Using the Surface and iPad as laptop
Using the Surface and iPad as laptop
Faulty Gates Carbon Drive CDN rear sprocket left, shiny and stronger CDX sprocket right.
Faulty Gates Carbon Drive CDN rear sprocket left, shiny and stronger CDX sprocket right.
Solar panel fixed on the balcony
Solar panel fixed on the balcony
Updating... updating... updating... updating...
Updating... updating... updating... updating...
Programming on iPad Pro using VIM, Blink and a Linux VPS
Programming on iPad Pro using VIM, Blink and a Linux VPS
Remove dirt from the axle
Remove dirt from the axle
Determining
Determining "what is what?" involves opening doors, following cables, checking lights and listing machine names
Look what happens to my face when my patience is tested...
Look what happens to my face when my patience is tested...
Left the plastic CDN sprocket - if you look closely you'll notice the missing teeth, right the shiny stainless steel CDX sprocket
Left the plastic CDN sprocket - if you look closely you'll notice the missing teeth, right the shiny stainless steel CDX sprocket
Achieved a nice angle with three legs, suitable for fixture on my balcony
Achieved a nice angle with three legs, suitable for fixture on my balcony
The RAM hatch pops open using the secret button inside the power connector
The RAM hatch pops open using the secret button inside the power connector
Annotate anything using Surface Pen
Annotate anything using Surface Pen
Shimano Alfine 8 trigger shifter
Shimano Alfine 8 trigger shifter

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