1-800-call-it-in ☎️

Screen.Recording.2025-01-15.at.6.51.30.PM.mov

This is an extension that you can sideload into Chrome for calling in orders to restaurants from Grubhub. Why? Because delivery apps often take something between 5-20% of an order as a fee for their service. Sometimes this fee is foisted onto you, the customer. Other times, restaurants just eat the cost. Everybody gets fucked — not great! This application side-steps the middle-man by using some very modern technology (LLMs for input, transcribing, and interpreting transcription; generative voice models) on some very old rails (the good ol' telephone).

This is a pretty uninspired use case, and I'll probably just be leaving this one as is.

Some topics this application covers:

• Developing Chrome extensions with TypeScript
• Working with structured outputs API
• Basic LangChain usage

Some things this application does not cover:

• Strict type security between client and server
• Authentication
• Unit testing

Dev setup

To try out this application:

1. Pull it down via git clone
2. Obtain Vapi and OpenAI API keys.
3. Create an .env file in the root of the /secrets directory, using the env.example as a template.
4. To run your dev environment: run the following sequence of commands:

pnpm install
cd scripts
pnpm secrets
chmod +x ./src/db.sh
./src/db.sh init
cd -
pnpm dev

5. To build and try out in Chrome:

cd packages/extension
pnpm build

... and then sideload into Chrome via chrome://extensions.