Requirements

Operating system

Fabricator runs on Linux. The installer supports:

Distro family	Package manager
Debian / Ubuntu	apt
Arch Linux	pacman
Fedora / RHEL	dnf

Other distros may work but are untested.

System requirements

	Minimum
RAM	1 GB (plus whatever your Minecraft server needs)
Disk	2 GB free (more depending on mods and world saves)
CPU	Any 64-bit x86

Fabricator itself is lightweight. The limiting factor is the Minecraft server process it manages.

Access

• Root or sudo access — required by the installer
• A user account with SSH access to the server

Network

Fabricator listens on localhost:5000 by default. To access it remotely you’ll need one of:

• A reverse proxy (nginx, Caddy, Traefik) — recommended
• Changing the bind address in config — not recommended for public-facing servers

Outbound internet access is required for:

• Downloading Node.js during install
• Downloading Java from Adoptium
• Modrinth API calls for mod search and install

Java

You don’t need Java installed beforehand. Fabricator downloads the appropriate JDK from Adoptium and manages it internally under /var/lib/fabricator/java/{major}/. The correct version is selected based on the Minecraft version you’re running.

Software installed by the installer

The install script handles these automatically:

• Node.js 20.x (via NodeSource)
• Python 3 and pip packages (via virtualenv)
• System packages: curl, git, rsync, and others depending on distro

You don’t need to install any of these manually before running the installer.