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Carter Johnson

Projects

Things I have built

A growing record of software, tools, and business projects. Some are tied directly to my clinical work, others are independent. Listed newest first.

Active

Currently running

  1. Active 2024 – Present Business

    Legacy Heirloom

    Sole proprietor · Cross-listed retail

    A small vintage jewelry and goods resale business I run as a California sole proprietor with a seller's permit. The shop focuses on heirloom-grade pieces, sourced and authenticated before listing.

    Inventory is cross-listed across Etsy, Depop, Poshmark, and eBay using Vendoo, with a custom internal accounting system (a sales log, an expense log, mileage tracking, and CDTFA compliance flags) tracking every transaction. Etsy is the primary storefront for browsing the current catalog.

Past

Previously shipped

  1. Past 2026 Web tool · Clinical adjacent

    NextToken

    Free token board for ABA therapists

    A self-contained browser-based token board for ABA therapy sessions. Built as a single HTML file with no dependencies and no backend, so it runs from any device with a browser and requires no installation or account.

    The tool came out of my own work as a Behavioral Health Technician. Most token board options are either expensive subscription apps or unreliable printable PDFs, neither of which fit how sessions actually run. NextToken is the quick, free alternative I wished existed.

    The project is shipped and live, with no active development planned. It is included here because it sits at the seam between my clinical work and my technical side, and because anyone in the same role is welcome to use it.

More to come. Side tools, internal systems, and writing projects will land here as they reach a state worth sharing. If you want to keep up with new work, subscribe to the writing section when it launches, or get in touch directly.