GNU/Linux

Using the binary

Lem 2.1 was released! It provides binaries for Linux, MacOS and Windows.

Other GNU/Linux

Installation from scratch

sbcl
sdl2
qlot
git

Install SBCL and ncurses library

Debian-like distro

sudo apt install sbcl build-essential libsdl2-dev libsdl2-image-dev libsdl2-ttf-dev

Install qlot

Automatic installer

curl -L https://qlot.tech/installer | bash

For an alternative installation, https://github.com/fukamachi/qlot#installation

Download and build the executable

Create the directories

mkdir $HOME/common-lisp
cd $HOME/common-lisp
git clone https://github.com/lem-project/lem.git
cd lem && make sdl2

or run make sdl2-ncurses to build Lem with the two interfaces in it. Then choose the interface at startup with -i / --interface, either “sdl2” or “ncurses”.

Add the executable to PATH

Copying the PATH to ~/.bashrc

export PATH="$HOME/common-lisp/lem:$PATH"