MacOS

Lem has nightly AppImage releases! for Linux, MacOS and Windows.

Please run it with the xattr command below.

Copy the app file to the applications folder and type the following in your terminal:

xattr -d com.apple.quarantine /Applications/lem.app

Clone the Lem repository and build a Docker image:

$ docker build -t lem .

You can now run it:

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

• sbcl
• ncurses
• qlot
• git

• Using HomeBrew https://brew.sh/

brew install sbcl ncurses

• 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