Willem L. Middelkoop MSc BICT

IT business owner, investor, hacker and software developer

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Lemmid Store

With Lemmid Store business owners can easily sell products online via their own website, independently from big (powerful) platforms.

DigiDef

DigiDef is a specialised bureau that analyses existing computer systems and offers help with improving security.

Lemmid B.V.

Lemmid provides internet services for selected Dutch and international customers. Together with the customer Lemmid develops new IT products and services, including websites, web applications and apps.

dsd 164 B.V.

dsd 164 B.V. is a publisher of mobile apps for the international market. Apps from dsd 164 B.V. are downloaded millions of times.

Willem & Laurentz Holding B.V.

The Willem & Laurentz Holding B.V. invests in technology related companies. It is actively contributing to the development of new initiatives.

Snake '97

Play Snake like it is 1997. This is a remake of the original Snake, complete with dot-matrix display and monotone sounds. The game has millions of fans world wide.

Rescuing photos from a crashed iMac

Using advanced tools to read files from a faulty disk

Oct. 15, 2020

This week I attempted to recover two decades of personal photo history from a crashed iMac.

This week I received a message from someone with a iMac that crashed. It contained more than 50.000 photos, covering two decades of personal history. As there was no backup, it was up to me to attempt to safe as much as I could. Could I possibly recover the personal photos?

Riding with Omata One

Analogue cycling computer with GPS

Sep. 29, 2020

If you're looking for an alternative for common cycling computers, the Omata One is something truely special: it indicates your speed, distance, ascent and time ridden using mechanical hands!

For the past week I have been riding my bicycle with Omata One, a special bike computer. Its mechanical hands indicate speed, distance, ascent and time ridden measured using precise GPS data. It is fun, read along to know why.

Refining my tablet OS experience

Using Surface Go 2 with 4G/LTE, Debian GNU/Linux and i3wm

Sep. 28, 2020

Installing Debian GNU/Linux on a Surface Go 2 with LTE/4G to replace my iPad Pro as daily driver.

Earlier this year I tried to create my own tablet operating system by installing Debian GNU/Linux on a Microsoft Surface Go tablet. I learned a great deal about what I like about tablets. But I still preferred my iPad Pro, mainly because of its polished user experience. This time I set out to refine my tablet software to replace my iPad.