Essays · 3 October 2026
I Gave a Picture a Play Button
A picture, sixteen notes and a frame that plays too. Build with Codex and change the rule.
Dargel Solutions · Software · Digital Products
Software and digital products, built to last.
We build lean software solutions, internal tools, and digital product formats with a high technical standard and a clear purpose.
Get in touchThree streams, each with its latest entry.
Knowledge · English edition 25 September 2026
From request to task. With a result you can check.
A six-part hands-on track: the same workflow built once with n8n and once with Make, plus a free test pack with error cases, a calculation based on your own figures and the stated limits of the evidence. Partly funded through advertising or affiliate links to n8n and to Make.
Also in Knowledge: How to Audit a Passing Check in an AI Agent Workflow, with a worked example and a free worksheet.
breaklint · 15 August 2026
breaklint checks the page that will actually be printed.
A command-line tool for documents generated from HTML to PDF: it measures every page after the break and reports, for each finding, the measured value next to the threshold it failed. Open source under the MIT licence, public on GitHub and npm.
Practical guides to download.
Products · free since 29 September 2026
AI Starter: From Chat to Your Own Tool
The way in, no programming required: build your first tool of your own with an AI agent over one weekend. A twelve-chapter guide, an example project and three short videos.
€0.00 In exchange for your email address · instant download · occasional emails about our guides and tools, unsubscribe any time
Products · English edition since 11 July 2026
Registering a Kleingewerbe in Germany
The step-by-step guide to starting a small business in Germany, from the decision to your first income-expense statement. Written in English for expats, German terms explained. Edited 5 September 2026.
€4.90 Final price when buying direct · also in German, as a separate edition
Products · English edition since 9 July 2026
The AI-First Operating Playbook
A practical playbook for AI automation in small businesses — with an ROI calculator and working templates. AI update September 2026.
€12.90 Final price when buying direct · also in German, as a separate edition
Products · English edition since 16 July 2026
Orchestrating AI Agents
The multi-agent deep dive behind the AI-First Playbook: reviewer patterns, routing, research verification and cost control, with an interactive cost calculator. AI update September 2026.
€12.90 Final price when buying direct · also in German, as a separate edition
Products · English edition since 7 September 2026, also in German
Nobody Opens a Passing Check
A logged field report from thirty-nine days of a two-agent operation: fourteen green lights and one unused capability that the question which mattered still ran past. Read on day 39 of 90 (2026-08-25).
€29.90 Final price when buying direct · also in German, as a separate edition
Where “Buy direct” is shown, EU consumers can buy from Dargel Solutions and pay with PayPal. The displayed direct price is the final price: no added VAT or fees. The small business VAT exemption under section 19 of the German VAT Act applies. Some special territories are excluded; availability is checked at checkout. Gumroad ↗ remains available for business purchases, other locations and products offered only there. Gumroad is the seller for those purchases and shows any VAT and the final price before payment.
One business, one person, Frankfurt am Main.
Dargel Solutions is a Kleingewerbe (German sole trader) based in Frankfurt am Main. There are no departments: the same person writes the code, builds the digital products, runs the automation, and answers the mail.
The work uses current AI models from Anthropic and OpenAI, including Claude and ChatGPT. For material outputs, several models run in separate steps and check one another. Before publication or a binding decision, a human reviews the result and releases it.
The mandatory provider details under § 5 DDG are in the imprint.
Software solutions for concrete operational problems.
Dargel Solutions can develop and provide custom software solutions for other businesses: from lean internal tools to near-production web applications.
The right starting point is a short, concrete description of the problem, the existing systems, and the desired outcome.
