EvLag is available in an amd64 binary via a Web-hosted Debian package.
A. Add source Web server and directory.
echo "deb [trusted=yes] http://www.cs.wpi.edu/~claypool/packages ./" | sudo tee -a /etc/apt/sources.list
B. Synchronize repositories.
sudo apt update
C. Install
sudo apt install evlag
D. Uninstall (if needed)
sudo apt remove evlag