Offering web apps with LLM enhancements. Specializing in AI for the construction industry
Overview
I build AI apps for the construction industry. Specs, codes, schedules, transcripts, etc. Apply AI to your big data. I bring 40 years of problem solving experience to the task. Autodesk Revit and AutoCAD were my previous specialties.
I help contractors, engineers, and project managers get clarity from complexity. See https://aifab.xyz/hays/ for a list of apps made for a client.
I’ve created tools that parse 6,000+ page construction specifications, analyze multi-thousand-line project schedules, integrate with Autodesk Construction Cloud, and made chatbots using kind any of documents as their knowledge bases. Other examples are a legal chatbot and law assistant using 69000 pages of state laws as its knowledge base, and author emulation apps using all of the authors’ published books.
Simple tech stack for most apps: Python for logic, Streamlit for the web UI.
Secret sauce: For large chatbot knowledge bases, I use a hybrid context retrieval approach. Semantic search combined with LLM-generated keyword search, then re-ranked to get the top context for the user prompts to the LLMs. This enables getting unusual industry jargon, abbreviations, and other specific text from the knowledge base.
Contact: design@truevis.com See: https://x.com/truevis https://github.com/truevis https://www.linkedin.com/in/truevis/
Texas Law Chatbot

AI-powered assistant for Texas law questions. This application helps you:
- Search Legal Databases: Access information across multiple Texas legal documents
- Get Answers: Receive responses with proper citations and legal references
- Explore Legal Topics: Find information on contracts, criminal law, family law, employment law, property law, and more
- Understand Legal Requirements: Get explanations of statutory requirements, procedures, and legal concepts
Available by subscription: New subscribers receive 14 days free, then $149.00 per month
Chatbots using large building specifications documents as their knowledge base
See https://www.youtube.com/watch?v=Wjz6NydbpRw for an example

Public Apps
3D Architectural Element Viewer

3D Tetris

Analyze articles and show summaries for stock tickers

Component Selector with AI
https://aifab-selector-windows.streamlit.app
Demonstration sample app for using an LLM to help choose items from a catalog

Find Scrabble words from available letters
https://aifab-scrabble-assist.streamlit.app

Tri-Lingual Color Explorer

Start a WhatsApp message from text containing a phone number

Choose which rations to take on your outing using nutritional information
https://rations-optimizer.streamlit.app

Compose a Google Calendar link from text using AI


Sample service menu for small business to accept online payment methods
https://adore-payment.streamlit.app

Upload a book and extract pithy quotes
https://quote-extractor.streamlit.app
Contact me for password (this uses the paid Gemini API)

See many current exchange rates on one page

Titanic Dataset Analysis
Uses Polars https://aifab-titanic.streamlit.app Made into web app from #PyConTH2025 #Polars workshop examples

Convert markdown to Gutenberg WordPress code
https://aifab-md2wp.streamlit.app/

View markdown in browser
https://md-viewer.streamlit.app

Flight Link Generator
