vercel-labs/portless: README-based editorial guide
A guide grounded in the README, repository metadata, and license for installing and checking vercel-labs/portless.
Project scope
vercel-labs/portless describes itself in the README as "Replace port numbers with stable, named local URLs. For humans and agents.". This article keeps to facts that can be checked in the repository. Stars, forks, and promotional badges are signals of attention, not proof of quality. Under "portless", the README says: Replace port numbers with stable, named .localhost URLs for local development. For humans and agents.. That establishes the project's stated boundary, not a production test.
Suitable use cases
The README's "Framework notes" section gives a useful starting point for deciding whether the project fits: Expo / React Native: portless always injects --port. React Native also gets --host 127.0.0.1. Expo gets --host localhost outside LAN mode, but in LAN mode portless leaves Metro on its default LAN host behavior instead of forcing --host or. If that problem is not yours, popularity is a poor reason to adopt it. Project names, commands, and component names are kept as written so a reader can return to the primary source without guessing at terminology. Another checkable README item is: Next.js: add your .local hostnames to allowedDevOrigins:. It can shape a first test, but it does not replace testing in the intended environment.
How it works
The operating model is spread across sections such as "Run your app". The source evidence includes: HTTPS with HTTP/2 is enabled by default. On first run, portless generates a local CA, trusts it, and binds port 443 (auto-elevates with sudo on macOS/Linux). Use --no-tls for plain HTTP.. This article does not turn missing architecture, performance, or security details into claims. A real deployment still needs a look at the repository layout, configuration files, and release history.
Installation and first run
Start installation from the README's documented entry point. A command that can be checked in the source is: npm install -g portless When the README contains no runnable command, this article does not invent one. Open its "Install" section and confirm system dependencies, default ports, and first-run initialization before using a public server.