How I Built EDR: A CLI Tool to Share Active Project Folders Over LAN & Relay

EnderAir — Tue, 21 Jul 2026 16:34:53 +0000

`Hey DEV community,

If you frequently jump between multiple development machines (like a desktop, laptop, or home server), you know how annoying it can be to move an active project directory around. Zipping files manually is slow, cloud drives sync unwanted node_modules or .git clutter, and pushing temporary branches to GitHub just to pull them on another desk machine feels clunky.

That’s why I built EDR (Ender Air Project Sharer)—a CLI tool built to send active project folders directly between development machines over LAN or across networks using relay codes.

Key Features

Relay & LAN Support: Push project folders directly over your local network or globally behind NATs using simple relay codes (Edrnko_ codes).
EDR Guard: Includes a pre-transfer safety scanner that inspects directories before sending to prevent accidentally sharing sensitive keys or unwanted binary artifacts.
Profiles: Easily save frequently shared project paths with aliases.

Quick Start

Installation

You can install EDR via npm (requires Python 3.11+ on your machine):

bash npm install -g @enderair/edr

(Standalone binaries for Windows .exe, Mac .dmg, and Linux .deb are also available on our repository.)

How It Works

Option 1: Cross-Network (Relay Mode)

On the sender machine:
bash edr create sharer . --non-network --idnew edr start <id>

On the receiver machine:
bash edr pull Edrnko_<id>

Option 2: Local Network (LAN Mode)

On the sender machine:
bash edr create sharer . --id myproject edr start myproject

On the receiver machine:
bash edr pull <sender-ip>

How It Compares

vs. Croc / Magic-Wormhole: Shares similar relay-code ad-hoc capabilities, but adds directory profile aliases and EDR Guard for automated safety checks.
vs. Git / GitHub: EDR is not source control—it’s designed for fast, direct folder syncs without committing temporary working code or creating throwaway branches.
vs. Rsync / SCP: Eliminates SSH setup and configuration overhead when working across local networks or NATs.

Links & Feedback

GitHub: https://github.com/enderairstudio/Edr
Website: https://lume.dpdns.org/edr/
Discord: https://discord.gg/BjKmBwvFCn

We're actively working on EDR and would love to hear your thoughts, feedback, or bug reports! Drop a comment below if you give it a try.
`

DEV Community: EnderAir