Dirk Holtwick

Alice and Bob are editing the same note.

Have you ever noticed that all development environments and AI apps on macOS run without a sandbox?

Once upon a time selling software worldwide was easy.

An update with improvements to everyday workflows.

Tesseract 5 OCR, optimized for Apple Silicon.

BX is now available as a Mac app The idea described here has grown into an app of its own: BX launches Claude, Claude Code, Cursor and other AI apps in a sandbox — and shows you which folders they may read and write.

BX is now available as a Mac app The CLI tool described here has grown into an app of its own: BX launches Claude, Claude Code, Cursor and other AI apps in a sandbox — and shows you which folders they may read and write.

Info The EU is asking for feedback on its open source strategy.

Receipts Space 3.0 is here – a major update with lots of new features.

What crazy times we live in, and now everything is becoming even more absurd with President Trump.

After the successful launch of XML2Invoice, many new features and improvements have been added, so the renaming to E-Invoice Space is now taking place.

…with our new Swiss army knife for e-invoices.

Worried about e-invoices?

PDFify can now be updated to the latest version 4.0.

Update 2025-02-11 With Receipts Space, I have now published the first app based on the technology described.

I recently read about a “massive fake news machine” that the German Foreign Ministry claims to have uncovered (see below).

After a few years, it was time to update the website.

Last year I started video chat projects.

LanguageTool is the secret weapon for producing error-free texts in different languages.

I love Vue.js from Evan You and I like static websites.

Starting point The most valuable and most successful companies are IT companies: Apple, Google, Amazon and Microsoft.