To start "frying" your fat code, you'll need an interpreter for the FatScript programming language.

fry, The FatScript Interpreter

fry is a free interpreter and runtime environment for FatScript. Although it's still in its initial development stage, you can install it on your machine using the following instructions.


fry is designed for GNU/Linux, but it might also work on other operating systems.

If you're using an Arch-based distribution, you can install via the AUR package:


For other distributions, try the smart setup script. This script will automatically resolve dependencies on supported platforms and handle the installation for you:

curl -sSL -o;
bash || sudo bash

To install fry manually:

  • Clone the repository:
git clone
  • Then, run the installation script:
cd fry

the manual installation may copy the fry binary to the $HOME/.local/bin folder, alternatively use sudo to install it to /usr/local/bin/

  • Verify that fry is installed by running:
fry --version


If the installation fails, you may be missing some dependencies. fry requires git, gcc, curses, readline and libcurl to build. To install these dependencies on Debian/Ubuntu, run:

apt update
apt install git gcc libncurses5-dev libreadline-dev libcurl4-openssl-dev

OS Support

fry is primarily designed for GNU/Linux, but it's also accessible on other operating systems:


If you're on Android, you can install fry via Termux. Just install the required dependencies like so:

pkg install git clang

Then you can follow the standard installation instructions for fry.


If you're using ChromeOS, you can enable Linux support by following the instructions here.


If you're using MacOS, you'll need to have Command Line Tools installed.


If you're using iOS, you may use fry via iSH. First, install the required dependencies:

apk add bash gcc libc-dev ncurses-dev readline-dev curl-dev

Then, according to this thread, configure git to work properly, like so:

apk add ./git-2.24.4-r0.apk
git config --global pack.threads "1"

although iSH kinda works, it's slow and curses is plain broken


If you're using Windows, you can use fry via Windows Subsystem for Linux (WSL).

Docker image

fry is also available as a docker image:

docker run --rm -it fatscript/fry

To execute a FatScript file with docker, use the following command:

docker run --rm -it -v ~/project:/app fatscript/fry prog.fat

replace ~/project with the path to your FatScript file


If you encounter any issues or bugs while using fry, please open an issue.

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