4LFR AI

ai.4lfr.com

Software from the job site, not a pitch deck.

Leo Hernandez — Co-owner, Four L Flooring & Renovations · builder. This page is a public index of the AI and software work, split between Four L (the contracting company) and personal research. Live products link out. Private repos stay private.

Four L / 4LFR

Software for the contracting company and the trades products that grow out of it.

  • Coordination Board

    Live

    Per-job status board for trades. Crew taps Done / In progress / Blocked; the GC sees the one thing holding the next phase. Mobile-first, link-to-open for crew.

    Open →

  • 4LBooks

    Live

    Internal bookkeeping and CRM that replaced a commercial accounting subscription. Desktop books of record plus a web app for estimates, invoices, and jobs.

    Open →

  • Four L marketing site

    Live

    Self-hosted bilingual marketing site for Four L Flooring & Renovations. Astro on Cloudflare Pages. No third-party image CDN.

    Open →

  • Four L ops automation

    Building

    Lead and follow-up pipeline with agent charters, consent rails, and a weekly kill-switch ritual. Plan and scaffolding exist; production wiring is next.

Personal

Bots, research, and tools Leo builds for himself. Public repos are linked; private ones are named only.

  • Kalshi BTC maker bot

    Research

    Paper-first market-making bot on Kalshi Bitcoin contracts. Explicit no-trade default below a minimum bankroll. Built to measure edge, not to pretend there is one.

    GitHub

  • Algo predictor

    Research

    Personal market/algorithm experiments. Public code, no production claim.

    GitHub

  • PMME

    Research

    Predictive maintenance for manufacturing equipment. Course / research project.

    GitHub

  • MyBrain

    Building

    Private knowledge vault and operating notes. Not a public product — listed so the lab is honest about where the thinking lives.