The linter can be installed as a dotnet tool.
Install as a global tool: dotnet tool install -g dotnet-fsharplint.
Install as tool to specific directory: dotnet tool install --tool-path <my_directory> dotnet-fsharplint
The console application is a wrapper around the linter. For basic usage, just run dotnet fsharplint lint <input>, where input can be an fsproj, sln, fs, fsx file, or a string of source code.
Run dotnet fsharplint --help for full usage information.