Showcase
Apps & projects
Personal apps hosted on this domain, plus the ventures and platforms I have founded and built over two decades.
Hosted on smitshah.com
These run on subdomains of this site, with one shared account. Sign in once at accounts.234apps.com - each app checks your access individually.
Options P&L Lab
What it is: a time-slice profit & loss lab for options positions, powered live by the Public.com Trading API.
Enter legs manually (buy/sell calls and puts, plus stock legs) or import your Public positions directly. The main view is a P&L grid - price on one axis, date on the other (Today, Tomorrow, +2d, +1 week to +4 weeks, Expiry) - with a heat-mapped profit/loss in every cell, a full strike × expiry matrix, and live Greeks (Δ Γ Θ Vega ρ) per leg and for the whole position. Projections use Black-Scholes with live chain IV. Positions autosave and can be stored as named sets. Read-only - it models trades, it never places them.
Launch Options P&L Lab →Smit Shah Accounts
What it is: the central identity service for every app on this domain.
One account, one secure session across all smitshah.com products, with per-product access control - the same pattern I run for Simple Business Suite, built as a standalone service for personal apps. Verification and password-reset mail is sent from my own self-hosted mail server.
Create or manage your account →More tools, launching here first
New personal experiments - trading tools, AI utilities, and small sharp utilities - will debut on smitshah.com subdomains and be added to this showcase as they ship.
Ventures
Simple Dealer Suite
A 13-module cloud SaaS platform for automotive, marine, motorcycle, and RV dealerships in the US, Canada, Europe, and Australia - inventory, syndication, brochures, coupons, CRM integrations, and more, run lean for over 13 years.
Dealer24x7.com: ~1.8 million dynamic pages generated from a 300GB MS SQL database with ~926ms average response time. Plus its derivative, Dealer500.com.
Simple Business Suite
One simple subscription for the tools a small business actually needs:
• Email Verify - real-time email verification API, bulk checks, and an MCP server
• Uptime Monitor - website/API monitoring with REST API + MCP
• Social Autopilot - AI-assisted social media scheduling
• Inbox Spam Test - seed-based inbox placement testing
YieldStacker
My public covered-call journal. Every trade - thesis, breakeven, downside cushion, and the one number that matters, total annualized return - documented on the web and shared on X, Substack, and YouTube Shorts.
yield-stacker.com →Platforms & products
• BA-QA Genie AI (JM Family / Mosswall) - agent-enabled business & QA analysis platform
• Polaris (Encore Global) - event-production platform APIs, US + Canada
• WorldOfWatches.com - flagship eCommerce on IBM WebSphere Commerce
• TheGSX.com - responsive community site built with Bootstrap
• e-Builder file transfer - .NET Remoting product built to compete with Autodesk Buzzsaw
Try the live apps
Options P&L Lab is free to explore with a Smit Shah account.