https://wiki.apertium.org/wiki/Constraint-based_lexical_selection_module
There are binaries available for Debian, Ubuntu, Fedora, CentOS, OpenSUSE, Windows, and macOS. We package both nightly builds and releases. See https://wiki.apertium.org/wiki/Installation for more information. Only build from source if you either want to change this tool's behavior, or are on a platform we don't yet package for.