Fernando Fernandez
Developer & Technology Enthusiast
Building interactive web applications and tools
Featured Projects
Explore my collection of web applications and interactive tools
Formula Debugger
Standalone tool to parse and evaluate Salesforce-style formulas, inspect variable types, view step-by-step calculations, and generate Mermaid diagrams of the expression tree.
Apex Trigger Generator
Interactive helper that scaffolds bulk-safe Apex trigger and helper-class templates covering six common automation patterns described in the companion article.
SpeechJS Playground
Web experiment for testing the Web Speech API with live transcription and speech synthesis demos directly in the browser.
OpenAI Realtime Audio POC
Proof-of-concept for OpenAI's WebRTC/Realtime stack that captures microphone input, streams it to the Realtime API, and plays the AI-generated audio reply live in the browser.
Unicode Display Explorer
Browser-based reference that lets you paste a text and it displays the characters to help identify bad Unicode/UTF-8 conversions and invisible characters.
Side-by-Side Text Comparer
Lightweight diff helper for pasting two snippets and instantly highlighting matching, missing, and added lines in parallel columns.
CSS Named Colors
Handy reference page that lists every CSS named color with side-by-side swatches, hex values, and quick copy helpers for rapid UI experimentation.
Introvert vs Extrovert Sim
Interactive scenario simulator that visualizes how introverts and extroverts recharge energy across social situations. Two versions highlight UI and logic refinements over time.
v10 showcases the latest styling tweaks; v8 preserves the original flow.
ONNX Transformers JS
Repository for a client-side playground for running ONNX transformer models entirely in the browser, featuring text generation, summarization, and token visualization powered by WebGPU execution.
will request permission to download ~200MB model files and transformer library
YOLOv8 Tinygrad WebGPU
A minimal WebGPU port of the YOLOv8 tinygrad model that loads net.safetensors, streams the weights into GPU buffers, and runs real-time object detection on live camera input with overlay controls directly in the browser.
will request permission to access camera and run WebGPU inference with Safetensors
Mandelbrot Explorer
Repository for a browser-based Mandelbrot renderer that combines WebGL and WebGPU shaders to deliver smooth zooming, orbit traps, and color palette experimentation directly on the page.
AI PDF Reader
Repository for a single-page assistant that ingests an uploaded PDF, extracts a chosen page or the entire document, and sends your question plus the extracted content to an AI backend using a user-provided API key.
will ask permission to upload PDFs, download LLMs, or request an OpenAI API key
SF CLI
Command-line inspired interface for common Salesforce admin tasks, featuring quick access panels for data queries, deployments, and handy reference utilities.
DependencyGraphForSF
VS Code extension that scans Salesforce metadata and code in /force-app/main/default to extract class/method names and find dependencies between them, then opens a dependency graph in an HTML page using Mermaid JS.
Salesforce Flow Extension
A simple browser extension that adds tooltips to Salesforce flows and displays a table of elements in the flow, allowing requests to OpenAI GPT to explain/summarize the flow.
Favorite SOQL Cards
Curated SOQL and Tooling API snippets organized by topic for quick copy/paste troubleshooting of users, logs, flows, metadata, and auditing tasks.
Amazonia
A text-based escape room game where you must navigate and escape from the Amazon jungle. Built entirely using Salesforce Flow and Lightning Out with interactive decision-making and immersive jungle scenarios.
Amazon Connect Flow Extension
A simple browser extension that draws a detailed diagram of Amazon Connect flows and modules.
GPT Extension for Salesforce
A simple browser extension that reads the Salesforce page content and requests OpenAI GPT to explain/summarize the content.
GPT Extension for Jira, Bitbucket and Confluence
A simple browser extension that reads the page content and requests OpenAI GPT to explain/summarize the content.
US Civics Questions
Interactive study tool for the US naturalization test with 100 civics questions. Features bilingual support (English/Portuguese), flip cards mode, and multiple choice quiz with scoring.
Salesforce Field Service Capabilities
Validated 2025/2026 capability reference for Salesforce Field Service with scope labels, prerequisites, licensing notes, operational constraints, KPIs, and source links. Includes filters for core, Agentforce/Einstein, and cross-cloud capabilities.
Salesforce Order of Execution Rap
A creative musical approach to learning Salesforce's order of execution. Makes complex technical concepts memorable through rhythm and rhyme.