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Doug Silkstone

Promptheus

Voice-to-ChatGPT browser extension

Independent builder · Built and grew it to 30,000+ users

Built a voice-to-ChatGPT browser extension independently.
Reached 30,000+ users within a year.
Set as a standalone assessment on MIT's Generative AI and LLM course.

#typescript #react #zerotoone #llms

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Doug Silkstone

Benson

Coupon-extension and AI-agent control for ecommerce

Founder & technical lead · Rebuilt and relaunched in ten days with AI agents

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Benson shows online stores which coupon extensions and AI shopping agents are in their sessions and what they cost, then lets them hide, cap or replace them with a holdout behind every change. The founder and technical lead role covered building, operating and selling the original getBenson platform, then reacquiring the brand and rebuilding it for the relaunch at trybenson.com.

Rebuilt Benson from an empty repository to a public relaunch at trybenson.com in ten days, against an original roadmap of 14 to 18 weeks.
Wrote the product as 44 PRDs and ran the build as an orchestrator, with AI agents delivering each task through tests, adversarial review and simplification: 836 commits and 785 test files in under two weeks.
Shipped ten apps and fifteen packages: a 2.5KB storefront loader, ingest on Redis Streams, Postgres with row-level security, a dashboard, an embedded Shopify admin, a WooCommerce plugin, a Cloudflare edge detector and an MCP server.

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trybenson.com How Benson was rebuilt

#typescript #react #nextjs #nodejs #hono #postgres #llms #architecture #zerotoone #attribution #ecommerce #growth

Doug Silkstone

Benson is back

On 24 September 2026, the Benson repository was an empty Turborepo starter. Ten days later, on 4 October, I relaunched Benson at trybenson.com with a Shopify app, a WooCommerce plugin, a dashboard, a marketing site, a press release and a series of explainer films behind it. By the end of the second week, the repository held 836 commits, 44 product specs and about 655,000 lines of TypeScript, with 785 test files among them.

The original roadmap for the same scope estimated 14 to 18 weeks. I built it with a team of AI agents doing most of the typing while I did the deciding.

Benson is still a work in progress. It's also the piece of work I'm proudest of, because it's the first time I haven't had to cut an idea down to fit the hours I had.

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trybenson.com

#typescript #nextjs #hono #postgres #llms #architecture #zerotoone #attribution #ecommerce #growth

The Benson dashboard overview in a demo store, showing protected value, live controls and insights — The Benson overview in a demo store with sample data. It shows what's protected, which controls are live and the next step in the recommended playbook.

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Doug Silkstone

RaceMake

Live telemetry and analysis for sim racers

Interim technical lead · Led architecture, team and delivery

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RaceMake helps sim racers understand their driving through live car and lap data, AI-assisted analysis and interactive 3D visualisations. The interim technical leadership role covered architecture, team leadership and delivery across the desktop app, web app and the data pipelines connecting them.

Led architecture and delivery across a Rust/Tauri desktop app and React web app.
Rebuilt both clients around extensible high-frequency telemetry pipelines and per-game adapters.
Built an AI pit team and interactive 3D visualisations on top of live telemetry.

racemake.com

#rust #tauri #typescript #react #nextjs #telemetry #llms #leadership

Doug Silkstone

WithSeismic

Independent product engineering and growth

Founder · Scoped, built and supported 100+ client engagements

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WithSeismic is an independent product-engineering business that builds software, analytics and marketing automation for client teams. As founder and sole operator, the role spans finding the commercial problem, scoping the work, designing and building the solution, and supporting it after launch.

Delivered 100+ product-engineering engagements over 10 years for clients including Framer, The Motley Fool, Groupon, Contra and Weedmaps.
Scoped, priced, delivered and supported every technical build independently.
Runs a fixed ten-business-day, £12,000 Revenue Loop Sprint that finds one material commercial leak and ships one corrective system into production.