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iPhone on Willem's Blog

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.

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!

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?

Using a budget Android as main smartphone

Comparing a Nokia (€99) with an iPhone (€1329)

Oct. 9, 2018
I switched to Android to find out how good a budget smartphone performs compared to an expensive iPhone.

Every now and then, I switch phones to keep track of mobile developments. As professional app and web developer, I need to know how different devices work in real life. This time I used a budget Android smartphone, making me curious how it would compare to an expensive iPhone.

Swimming and cycling with Apple Watch

Different activities in the workout app in watchOS

Sep. 27, 2018
This month I tested the newest watchOS while swimming and cycling.

This month Apple launched a new Apple Watch series and released an update to watchOS. The focus of the smartwatch is more and more gearing towards health and fitness. This made me curious, how well does Apple Watch work for different activities?

Creating a minimal iPhone stand

Routing oak wood for a custom fit

June 2, 2018
Today I created a minimal iPhone stand from oak wood. I used a single piece of wood to get it done.

Today I created a minimal iPhone stand from oak wood. While it's much faster to buy one online, I wanted one to fit my phone horizontally, with its case on. I like minimal design, so I opted to machine a single piece of wood to get it done.

Updating Snake '97

About the challenges of developing a wildly popular game

Feb. 21, 2018
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97 game. Read about the design challenges in this blog post.

Few years ago my brother threw a beer on my iPhone in an Amsterdam bar. The poor thing didn't like the Dutch brew as much as I do: it died. While waiting for a new phone to arrive, I used an old one that couldn't do anything but texting, calling and... Snake! The idea for Snake '97 was born and this month it was time to update the wildly popular game.

Programming on Apple Watch

Serious about crazy experiments

Feb. 16, 2017
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard

Over the past years I have been no stranger to crazy experiments, but this time I really wanted to push it into the extreme: programming on an Apple Watch. Would it be possible to actually write code on such a tiny device? Why even bother? This post is about the case for crazy experiments, and why you should try too!

Cash is king, or is it?

The wallet- and cash-less experiment

July 15, 2016
Is the time right to ditch the wallet?

Very often I see men carry a wallet filled with plastic: multiple debit and credit cards plus a bunch of loyalty programs and membership cards. Then, some even top it off with stinky paper money and sticky metal coins! It made me wonder if I can free up one pocket by ditching the wallet?

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The smartphone case fits perfectly
The smartphone case fits perfectly
Landscape photo taken at the Amsterdamse Waterleidingduinen with the Nokia 2
Landscape photo taken at the Amsterdamse Waterleidingduinen with the Nokia 2
Programming the new game engine and testing it on an HMD Nokia 2 running Android
Programming the new game engine and testing it on an HMD Nokia 2 running Android
And so I did! Programming on Apple Watch using VIM, SSH, a Bluetooth keyboard and coffee.
And so I did! Programming on Apple Watch using VIM, SSH, a Bluetooth keyboard and coffee.
Server hardware inside a rack in the data centre
Server hardware inside a rack in the data centre
The world on your wrist - using Apple Maps in downtown Frankfurt
The world on your wrist - using Apple Maps in downtown Frankfurt
Time and date can be checked easily using Apple Watch
Time and date can be checked easily using Apple Watch
Cycling with Apple Watch using the Workout app
Cycling with Apple Watch using the Workout app
Happy engineer with Apple Watch inside the data centre!
Happy engineer with Apple Watch inside the data centre!
Controlling Snake using a Super Nintendo gamepad is awesome (using a SuperSmart-joy USB connector)
Controlling Snake using a Super Nintendo gamepad is awesome (using a SuperSmart-joy USB connector)
The angle is right for easy touch screen access
The angle is right for easy touch screen access
Apple Watch and Rolex Milgauss 116400GV
Apple Watch and Rolex Milgauss 116400GV
With the right apps and paired with a keyboard, the budget smartphone can do some serious work
With the right apps and paired with a keyboard, the budget smartphone can do some serious work
Charging the iPhone while inside the wallet
Charging the iPhone while inside the wallet
Café 't Pakhuis in Amsterdam - where Snake '97 was
Café 't Pakhuis in Amsterdam - where Snake '97 was "invented"
Android One is - indeed - amazing
Android One is - indeed - amazing
Access to accesoires from both sides of the
Access to accesoires from both sides of the "thing"
Aligning the wood router
Aligning the wood router

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