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Software

Mon, 01 Jan 0001 00:00:00 +0000

Tecnick.com is strongly engaged in the development and maintenance of Open Source projects. Over the years we have contributed to several third-party Open Source projects and published many original ones. The actively maintained projects are listed first, followed by legacy and archived projects that are kept online for reference.

Actively Maintained

Go

nurago
Collection of modular and reusable Go (golang) packages for building services and infrastructure code, including a web-service project builder.
rpistat
Web-Service to collect system usage statistics.
rndpwd
Web-Service Random Password Generator written in Go (example project).
statsd
Simple and efficient StatsD client, supporting counter, gauge, timing and set metrics with InfluxDB and Datadog tags.

C and Multi-language Libraries

variantkey
Reversible numerical encoding for human genetic variants and regions. Available for C, Go, Python, Javascript and R.
farmhash64
Portable multi-language implementation of the FarmHash64 and FarmHash32 non-cryptographic fingerprint hash functions. Available for C, CGO, Go, Java, Javascript, PHP, Python, R, Rust and Zig.
binsearch
Fast binary search of unsigned integers in memory-mapped columnar binary files, including the Apache Arrow, Feather and BINSRC1 formats. Available for C, Go and Python.

PHP and Web Applications

TCExam
Computer-Based Assessment (CBA) system for universities, schools and companies, that enables educators and trainers to author, schedule, deliver and report on surveys, quizzes, tests and exams.
web-cctray
Web-based dashboard for CI/CD cctray.xml files.

PHP Libraries

tc-lib-pdf
PHP PDF library (TCPDF), to generate PDF documents on-the-fly without requiring external extensions.
tc-lib-barcode
PHP library to generate 70+ linear, 2D and postal barcodes as SVG, PNG, HTML or text.
tc-lib-pdf-font
PHP library containing PDF font methods and utilities.
tc-lib-pdf-page
PHP library containing PDF page formats and definitions.
tc-lib-pdf-image
PHP library containing PDF Image methods.
tc-lib-pdf-graph
PHP library containing PDF graphic and geometric methods.
tc-lib-pdf-sign
PHP library containing digital signature primitives for PDF documents (PKCS#7, CAdES, PAdES).
tc-lib-pdf-parser
PHP library to parse PDF documents.
tc-lib-pdf-encrypt
PHP library to encrypt data for PDF documents.
tc-lib-pdf-filter
PHP library to decode PDF compression and encryption filters.
tc-lib-unicode
PHP library containing Unicode methods, including UTF-8 conversions, the Unicode Bidirectional Algorithm (UAX #9) and script-specific character substitutions.
tc-lib-unicode-data
PHP library containing UTF-8 font definitions.
tc-lib-file
PHP library to read byte-level data from files.
tc-lib-color
PHP library to parse, convert and format the color representations used in web and PDF output.

Font Assets

Data-only packages that provide the font resources used by the PDF toolchain.

Websites

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Tecnick.com owns and manages a portfolio of technology-focused websites that provide open resources, practical tools, and technical documentation for developers, engineers, students, and digital makers.

technick.net - Guides and online tools for electronics, hardware and software
allpinouts.org - Archive of cable and connector pinouts
circuitsarchive.org - Archive of electronic circuit schematics and projects
nurago.org - Open Source collection of modular Go packages for backend services
tcpdf.org - Open Source PHP library to generate PDF documents (TCPDF and tc-lib-pdf)
tcexam.org - Open Source Computer-Based Assessment (CBA) system
testimages.org - Archive of free test images for research and display testing
atletix.net - [IT] Guide, strumenti e calcolatori per l’attività motoria e l’atletica leggera
appunti.asuni.xyz - [IT] Appunti universitari di Nicola Asuni
nicola.asuni.xyz - Nicola Asuni’s personal website and professional profile

Legal

Mon, 01 Jan 0001 00:00:00 +0000

Disclaimer

Please be aware that any information you find on this website may be inaccurate, misleading or out of date.

Some information on Tecnick.com may create a risk for readers who choose to apply or use it in their own activities, or who promote it for use by third parties. None of the authors or contributors connected with Tecnick.com can be held responsible, in any way whatsoever, for your use of the information contained in or linked from these pages.

TCPDF: 25 Years of Generating PDFs in PHP

Sun, 28 Jun 2026 00:00:00 +0000

Many PHP applications end up needing to produce a PDF. An invoice, a shipping label, a course certificate, a signed contract, a monthly report. It is one of those unglamorous requirements that turns up on project after project, and it is rarely as simple as it first sounds.

I know, because I have been writing the code that does it for twenty-five years.

If you have generated a PDF from PHP at any point in the last two decades, there is a good chance some of my code was involved. TCPDF, the library I started in 2002, has been installed more than 109 million times through Composer alone, and it is a dependency of a long list of applications you already know. I have even found documents generated by TCPDF sitting on NASA’s own data-centre websites. More on that below.

Stop Rewriting Go Service Boilerplate: Ship Production Go APIs Faster with nurago

Sun, 29 Mar 2026 00:00:00 +0000

Every backend team says the same thing when starting a new service:

“This one will be lean.”

Then the infrastructure checklist arrives.

Configuration loading. Structured logging. Metrics. Retries. Health checks. Graceful shutdown. Validation. Cache layers. Cloud clients. Test utilities.

None of it is core business logic. All of it is essential in production.

After watching that pattern repeat across teams and projects, I consolidated the building blocks I kept rewriting into one open-source project: nurago .

Software Quality Is a System, Not an Act: Inside the Quality Pipeline of nurago

Sat, 11 Jul 2026 00:00:00 +0000

Saying a project cares about software quality is easy. Pointing at the exact mechanisms that produce it is harder.

Quality is not a final inspection step, and it is not a property you can bolt on before a release. It is the cumulative result of dozens of small, boring, automated decisions that either happen on every commit or do not happen at all.

That is what the title of this article means. An act is something a person performs at a moment in time: a QA phase before the release, a yearly security audit, a reviewer being especially careful on a good day. Acts depend on memory, time, and goodwill, and they are the first casualty of deadline pressure; their results start decaying the moment they end. A system is a standing structure that produces quality as its normal output: automated, continuous, redundant, and measured, regardless of who is busy that week. W. Edwards Deming made the underlying point about manufacturing decades ago: you cannot inspect quality into a product; you have to build it into the process that makes it.

Redacting Secrets from Go Logs on a Performance Budget