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I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Cassie Evans – Animating the Impossible @ btconf Düsseldorf 2023

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Michelle Barker – Modern CSS Layout is Awesome! @ btconf Düsseldorf 2023

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The Disappearing Computer: An Exclusive Preview of Humane’s Screenless Tech | Imran Chaudhri | TED

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Aborting UNIX Processes Running Under a Specific TCP Port

As a longtime UNIX (of the macOS variety) / Linux user, it's kind of embarrassing that only recently I was made aware of this single command (or rather - in a true UNIX fashion: a composition of two commands) that allows you to stop a UNIX process running under a specific TCP port (e.g., a Spring Boot application or an Angular front-end during development) - rather than browsing for that port in a process list first and then manually using the ... Read more

Jeremy Keith – Declarative Design @ “Stories on the Road”

More on this idea: Design & Quantum Superposition Read more

Upgrading to Spring Boot 3 Using Spring Boot Migrator

Even though the upgrade process for Spring Boot 3 is pretty straightforward - in case you need to migrate a more than moderately complex project (or several thereof), upgrading Spring Boot applications indeed can become quite tedious and error-prone, too. To alleviate this potential problem, and in order to automate the Spring Boot upgrade process, there's Spring Boot Migrator. Based on the terrific OpenRewrite toolkit for automated large-scale refactoring efforts, Spring Boot Migrator provides you with recipes for migrating both Spring Boot 2.7.x ... Read more

JSON Visualization With JSON Crack

JSON Crack is a JSON visualization solution that allows to generated ad-hoc graph visualizations for your JSON data. While one of the huge advantages of JSON over other data formats certainly is that it's human-readable, more complex JSON documents containing linked data structures can become unwieldy and difficult to understand - at a cursory glimpse, at least. Such situations is where a tool like JSON Crack for visualizing data can come handy. Read more

Spring Boot 3, Spring Security 6, and Angular 15

Spring Boot is frequently used for business applications conjunction with Angular, with Spring Boot providing REST API endpoints and an Angular app delivering a user front-end on top of those endpoints. To help you get started with that kind of setup, particularly when it comes to the subjects of authentication and authorization and how to keep user data secure between the components involved in such an architecture, these GitHub projects can be quite helpful. All of those support the most recent versions ... Read more

Code Review Checklist and Tool Recommendations

Quite some time ago, both the code quality tool provider Codacy and the software architect Surender Reddy Gutha individually published useful resources on how to do effective code reviews and which tools to use for those: Code Review Checklist – To Perform Effective Code Reviews List of tools for code review engineers While unfortunately the two Pull Panda tools and ReadyforReview from the latter list are no longer available, the remaining tools as well as the checklist from the first article can be still ... Read more

Schematic – A Database Management UI for Spring Boot

Out of my own need for an embedded database management tool for Spring Boot web applications, similar to the H2 Console, but for non-embedded databases, I've created Schematic - a database management UI for Spring Boot. Specifically, for the Workshops.DE Spring Boot course, some time ago we had decided to replace a development-time, embedded H2 database (and the console application that comes with it) with a more realistic (in that it brings our code closer to an assumed dev / prod parity, ... Read more
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