In 2023/24, I developed a commissioned business process and workflow designer. The frontend was built using PHP, HTML, CSS, and JavaScript. This project also included an execution engine written in Python to fully automate workflows end-to-end. The available tasks are pre-defined functions for integration with the filesystem, web services, databases, email servers, and my customer’s internal products. This product also supported subprocesses and external trigger points through APIs, email, or files in a folder.

In 2024, I built a JavaScript library that renders a chat interface for my customer’s AI agents. The agents can be customized (names, tone, goals, etc.) through a PHP frontend that I developed. The external interface includes speech-to-text support and file upload capabilities. This project also features an API for spawning agents and rendering the interface.

In 2023, I was commissioned to build an online designer for documents that could be generated as PDF documents, HTML pages, or email templates. The delivered product supported graphics, tables, graphs, and variables. I also implemented a simulation mode and an API for generating the output. The frontend was developed in PHP, while the backend was a Python application.

In 2023, a long-term client needed a frontend for a new product. I was commissioned to deliver a frontend that can display various document types (PDF, Word, Excel, PowerPoint, text files, and even conversations). I built a PHP application that converts documents into images, featuring pagination and native zoom. Additionally, I implemented text positioning to allow users to easily copy and paste the content.

In 2023/24, I developed a product, as part of a contract, that enables business users to create and design web forms. A unique feature of this product is the ability to convert PDF forms to web forms, saving time during setup and reutilizing forms that had significant effort invested. The frontend, developed in PHP, includes a drag-and-drop canvas where fields can be positioned and resized on the fly. The product also handles validation and form hosting. Instances can be spawned through an API that I developed.

Outraged by the way errors are handled within PHP, I began developing a module to catch and log errors rather than just returning them. The frontend gracefully displays error messages, and the latest version also supports API calls. Errors are logged in a database and include the complete stack trace.

This module is part of my own PHP ToolKit, a collection of modules (such as API Gateway, Page Loader, Pagination, Dynamic Email Send, Error Log, User Management) designed to make setting up and developing PHP applications easier.

This module was initially developed for a customer and subsequently reused multiple times. Eventually, I migrated it into my PHP ToolKit. It allows developers to easily build a credit-based billing system and integrates with external payment providers such as PayPal and Stripe.

This module is part of my own PHP ToolKit, a collection of modules (such as API Gateway, Page Loader, Pagination, Dynamic Email Send, Error Log, User Management) designed to make setting up and developing PHP applications easier.