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.

Working with special hardware from China

On developing software without a manual

This month I received a shipment from China containing some special hardware, Android devices with embedded printers! To make life easier for the restaurant and business owners that use my food ordering app, I want these devices to automatically print new orders. If only I can get these machines to work with my software... challenge accepted!

Why Apple Silicon is a big deal

Blown away by a MacBook Air

Apple now designs its own processors and I had a chance to work with the very latest from Cupertino: a brand new MacBook Air with M1 processor. Never ever have I been so blown away by a MacBook Air, pun intended. Let me share some thoughts why I think Apple Silicon is a big deal.

Designing a multi dimensional capacity queue

Managing kitchen-, delivery- and pickup capacity

This month I needed to create additional dimensions to a capacity queue mechanism. The food ordering app that I created needed to be able to restrict capacity based on the number of orders, the contents in individual orders and the dispatch type (takeaway/delivery). Read along to find out how I used a Lambda Architecture to do this.