GNU/Linux

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

• Enable the AUR arch package system https://wiki.archlinux.org/title/Arch_User_Repository

• Run the installation command:

yay -S lem-editor-git

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