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duggal1/README.md
Harshit Duggal

Harshit Duggal

Founding Engineer

I build production products where the hard parts are not just code: product complexity, broken workflows, ugly integrations, and poor design.

Portfolio Portfolio      X X/Twitter      Email Email


What SynthicAI taught me

SynthicAI alert

In August 2025, I shipped SynthicAI, a voice AI agent for customer support.

It reached 500+ waitlist users through Reddit, X, and LinkedIn

It failed because

  • the market was already crowded
  • the problem was too broad
  • I did not talk to enough buyers before building
  • AI infra cost became real before funding did

It changed how I build. I stopped chasing broad markets and started looking for narrow, expensive problems with buyers already paying for broken solutions.


Products / Projects

Most of these are closed source. A few are public or partially public.


Demo recovery and pipeline verification for B2B sales teams.

Tracks what happened after a demo was booked: meeting status, owner, CRM value, follow-up, and unresolved pipeline.


Revenue intelligence for booking-driven healthcare groups.

Connects patient inquiries, bookings, visits, payments, staff handoffs, and recovery actions into one operating view.


AI visibility tracking for payroll software companies.

Shows how ChatGPT, Claude, Gemini, and Perplexity mention, rank, compare, or exclude payroll platforms in buyer searches.


Refund and approval risk tooling for commerce teams.

Helps teams review refund exposure, policy breaks, approval gaps, and money leaving the business.


AI voice support agent.

Handles missed calls, customer questions, and support handoffs when slow replies cost the business.


Christmas AI product.

Tools for gift ideas, cards, room styling, and holiday planning.


Stack

Tech stack

Frontend
Next.js, React, TypeScript, Tailwind CSS, Zustand, TanStack Query

Backend
Bun, Elysia, Next.js Server Actions, Inngest, REST APIs, webhooks

Data
PostgreSQL, Neon, Drizzle ORM, Prisma, Qdrant

AI
LLMs, RAG, prompt systems, agents, vector search, evals

Integrations
Stripe, Paddle, HubSpot, Salesforce, Shopify, Zendesk, Slack, Google Workspace


AI systems I build

  • AI agent workflows that use tools, retry failures, preserve state, and escalate uncertainty
  • Extraction systems for messy CRM, support, operations, and revenue data
  • Hybrid deterministic + LLM pipelines where facts stay source-grounded
  • Human review gates when automation confidence is not enough
  • Failure-driven evals based on production mistakes, not benchmark theater

Contact

For work only, please.

hduggal@darkfunnel.pro

Secondary: duggal@trysapphire.today


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  1. stripe-kit stripe-kit Public

    Launch your Stripe payment flow instantly with our starter kit, featuring seamless embedded payment card integrations🚀

    TypeScript 9

  2. git-automation git-automation Public

    A simple and powerful Git automation tool that streamlines version control workflows and ensures consistent code management.

    JavaScript 6 1

  3. synex synex Public

    🎉Open Source Agentic Invoice software

    TypeScript 8

  4. Synex-Landing-page- Synex-Landing-page- Public

    TypeScript 5

  5. Axion Axion Public

    #1 Advanced Agentic Sales Agent for Businesses and Enterprises

    TypeScript 5