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From a C# Report Service to One Next.js Codebase in an Hour
A PDF report lived in its own C# service driven by an Excel template, because a year ago hand-building a PDF was the expensive option — here is what that second project really cost, and how an afternoon with an AI folded it into the Next.js app it belonged in.
- Next.js
- AI
- Docker
- TypeScript
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How to support01 — More recent
See all 94 →Four German Holidays Hang Off One Number
Part 1 built a holiday engine out of data instead of branches: a record holding a stable identifier, a display name, and an anonymous method that turns a year into a date. Eleven US federal holidays fit into that structure with three small…
- Delphi
- DateUtils
- Date and Time
- RTL
- Object Pascal
Two Countries, Twenty Holidays, One Data Structure
Every business application eventually needs to know whether a given day is a working day. Payroll needs it. Delivery-date estimates need it. Anything that computes an SLA in business days needs it. And the first version of that code, in…
- Delphi
- DateUtils
- Date and Time
- RTL
- Object Pascal
Regular Expressions in Delphi, Part 2: Using TRegEx
In Part 1 we learned to read regular expressions — the dozen metacharacters that turn \d{5} into "exactly five digits" and ^…$ into "the whole string, nothing more." That was deliberately code-free, so the concepts had room to land. Now we…
- Delphi
- Regular Expressions
- RTL
- Strings
- Object Pascal
My Server Was Compromised — and Recovery Took One Command
The site was down, so I did what anyone does: I opened a terminal and started looking. What I found was a process called kmod-cache-update, which sounds like something the kernel would run and is in fact XMRig, an open-source Monero miner,…
- Docker
- Security
- Caddy
- Backups
Regular Expressions in Delphi, Part 1: Reading the Squiggles
Every developer has met a regular expression in the wild and quietly flinched. Something like this: It looks less like code and more like the cat walked across the keyboard. And for a long time in the Delphi world you could get away with…
- Delphi
- Regular Expressions
- RTL
- Strings
- Object Pascal
JSON to Delphi Classes: The Popular Version Isn't the Live One
A few days ago a message came in through the contact form on this site. Jens Borrisholt had been reading the JSON and RTTI posts and thought one of his open-source projects might be a fit: a tool that takes an arbitrary JSON document and…
- Delphi
- JSON
- RTTI
- Open Source
02 — The archive
87 more articles, back to 2023.
Every article ever published, grouped by year and month.