# Does the README Provide Installation Instructions for pi-web?

> Find out if the agegr/pi-web README offers installation instructions. Get clear steps for quick npx execution or permanent npm global installation.

- Repository: [Alex Yang/pi-web](https://github.com/agegr/pi-web)
- Tags: how-to-guide
- Published: 2026-08-09

---

**Yes, the README in the agegr/pi-web repository contains comprehensive, step-by-step installation instructions for π-Web, covering both temporary execution via npx and permanent global installation via npm.**

The agegr/pi-web repository distributes π-Web as a Node.js-based web tool. According to the source code, the [`README.md`](https://github.com/agegr/pi-web/blob/main/README.md) file serves as the primary documentation, providing exact commands and configuration details needed to install, run, and uninstall the application.

## Installation Methods Documented in the README

The README outlines two distinct approaches to running π-Web, allowing users to choose between immediate execution or a permanent system installation.

### Running Without Installation (npx)

For users who prefer not to install the package permanently, the README documents a "Quick Start" method using `npx`. This approach fetches the latest version directly from the npm registry and starts the server immediately.

As detailed in lines 13-27 of [`README.md`](https://github.com/agegr/pi-web/blob/main/README.md), execute the following command:

```bash

# Fetch the latest version from npm and start the server immediately

npx @agegr/pi-web@latest

```

This command temporarily downloads and executes the package without adding it to your global npm packages, making it ideal for testing or occasional use.

### Global Installation (npm install -g)

For frequent use, the README recommends installing π-Web globally. This approach adds the `pi-web` command to your system path, enabling you to launch the server from any directory.

The installation command documented in the README is:

```bash

# Install or upgrade to the latest version

npm install -g @agegr/pi-web@latest

# Start the server (the `pi-web` command is now available globally)

pi-web

```

Once installed, the CLI entry point in [`bin/pi-web.js`](https://github.com/agegr/pi-web/blob/main/bin/pi-web.js) handles command parsing and server initialization. The package name `@agegr/pi-web` is defined in [`package.json`](https://github.com/agegr/pi-web/blob/main/package.json), which the npm CLI references during installation.

## Managing Your Installation

The README also includes instructions for removing a global installation. To completely uninstall π-Web from your system, run:

```bash
npm uninstall -g @agegr/pi-web

```

This command removes the package and the global `pi-web` command from your environment.

## Launching and Configuring the UI

Once the server starts, π-Web serves its interface through a local development server. The README specifies the default network address and startup behavior options.

### Default Server Address

After installation and startup, navigate to the following address to access the UI:

```

http://127.0.0.1:30141

```

This URL serves the root Next.js page defined in [`app/page.tsx`](https://github.com/agegr/pi-web/blob/main/app/page.tsx), which renders the main web interface.

### Disabling Automatic Browser Launch

As documented in lines 43-49 of [`README.md`](https://github.com/agegr/pi-web/blob/main/README.md), you can prevent the browser from automatically opening when the server starts:

- Use the `--no-open` flag: `pi-web --no-open`
- Set the environment variable: `PI_WEB_NO_OPEN=1`

The [`bin/pi-web.js`](https://github.com/agegr/pi-web/blob/main/bin/pi-web.js) file processes these flags to modify the startup sequence accordingly.

## Summary

- The **agegr/pi-web README** provides complete installation instructions for π-Web in lines 13-27 of [`README.md`](https://github.com/agegr/pi-web/blob/main/README.md).
- Users can run the tool temporarily via `npx @agegr/pi-web@latest` or install it globally using `npm install -g @agegr/pi-web@latest`.
- Global installations are removed with `npm uninstall -g @agegr/pi-web`.
- The server defaults to `http://127.0.0.1:30141`, with the UI rendered by [`app/page.tsx`](https://github.com/agegr/pi-web/blob/main/app/page.tsx).
- Startup behavior can be controlled via the `--no-open` flag or `PI_WEB_NO_OPEN` environment variable, as detailed in lines 43-49 of the README.

## Frequently Asked Questions

### Does the README explain how to install pi-web globally?

Yes, the README provides explicit instructions for global installation using `npm install -g @agegr/pi-web@latest`. After installation, the `pi-web` command becomes available system-wide, and the CLI entry point in [`bin/pi-web.js`](https://github.com/agegr/pi-web/blob/main/bin/pi-web.js) handles subsequent server launches.

### Can I run pi-web without installing it permanently?

Yes, the README documents a temporary execution method using `npx @agegr/pi-web@latest`. This command downloads and executes the latest version without adding the package to your global npm installation, which is useful for testing or one-time use.

### Where does the README specify the server address and startup options?

The README indicates that the server runs on `http://127.0.0.1:30141` by default. Lines 43-49 of [`README.md`](https://github.com/agegr/pi-web/blob/main/README.md) document the `--no-open` CLI flag and `PI_WEB_NO_OPEN` environment variable for controlling browser auto-launch behavior.

### What package name does the README use for installation commands?

The installation commands reference the scoped package name `@agegr/pi-web`, as defined in [`package.json`](https://github.com/agegr/pi-web/blob/main/package.json). Both the npx and npm install commands use this exact name to fetch the correct repository from the npm registry.