Why is port 3000 always in use?

Arda Can Kırkoç — Tue, 21 Apr 2026 11:29:09 +0000

We just shipped Dev Ports in Room Service.

A new way to see and manage active local development servers across your Mac.

Dev Ports brings local server visibility into the parts of the app where it is most useful: Home, the menu bar, smart notifications, Ops Feed, and the command panel.

The goal was simple:

make active local servers easier to notice and easier to act on, without constantly switching between terminal tabs, browser tabs, Activity Monitor, and Finder.

When Room Service detects a project-backed local server, you can open the local URL, reveal the project in Finder, open it in Terminal, or stop the server directly from the app.

We also added shared local port scanning to the CLI, so there is now a roomservice ports command with JSON output, optional non-project listeners, and direct kill support.

Full changelog:
roomservices.pro/changelog

Why “Disk is full” on macOS doesn’t make sense anymore

Arda Can Kırkoç — Wed, 25 Mar 2026 22:19:18 +0000

I kept running into the same frustrating issue on macOS:

“Disk is full”… but no clear explanation why.

At first, I thought this was just about cleaning obvious things like Xcode builds, Docker images, or node_modules.

But digging deeper, I realized something else:

A lot of disk usage is actually hidden and hard to understand.

It’s spread across caches, system data, build artifacts, and leftovers that macOS doesn’t really explain well.

Even without AI, this already makes things messy.

But recently, local AI tools made this worse.

Model files, caches, and downloads from tools like Ollama, Hugging Face, and Whisper just grow silently in the background.

At some point, it stopped feeling like a cleanup problem.

It felt more like a visibility problem.

Instead of asking “what should I delete?”, the real question became:

“What is actually taking space?”

That shift completely changed how I approached the problem.

I ended up building something around this idea while exploring the problem:

https://roomservices.pro

Would love to hear how others are dealing with disk usage, especially with dev setups or local AI workflows.

DEV Community: Arda Can Kırkoç

Why is port 3000 always in use?

Why “Disk is full” on macOS doesn’t make sense anymore