GNU/Linux

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

There is an automatic installer that works on Debian, Linux Mint and Ubuntu.

Before that, install the dependencies:

sudo apt install sbcl curl git

Now, run the command that will install Lem:

curl -L https://lem-project.github.io/linux_installer.sh | bash

Important places from the script installation:

• $HOME/common-lisp/lem (Lem installation location)
• /usr/local/bin/lem (Lem symlink)

Use the ready-to-use Lem image in the GitHub Container Registry:

$ docker run --rm -it ghcr.io/lem-project/lem:latest

or clone the Lem repository and build the Docker image:

$ docker build -t lem .

You can now run it:

$ docker run --rm -it -v .:/shared lem

• sbcl
• ncurses
• qlot
• git

• Debian-like distro

sudo apt install sbcl libncurses5-dev build-essential

• Fedora

sudo yum install sbcl ncurses-devel make automake gcc gcc-c++

• OpenSuse

sudo zypper install sbcl ncurses-devel make devel_basis

• Automatic installer

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

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

• Create the directories

mkdir $HOME/common-lisp && cd $HOME/common-lisp

git clone https://github.com/lem-project/lem.git
cd lem && make ncurses

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”.

• Copying the PATH to ~/.bashrc

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

Please install roswell at first, Roswell Installation Guide.

After that, please follow the steps bellow.

1. Install lem by roswell

$ ros follow-dependency=t install lem-project/lem

2. Add the PATH in the initialization file (such as ~/.bashrc)

export PATH=$PATH:~/.roswell/bin