Grunt

If you want to use grunt you can use tgrunt like this:

# must run the commands from the root of your Totara repo
cd sitefolder
# if the site is Totara 13 or later, then you must run it from the server/ directory
cd server

tgrunt
tgrunt gherkinlint
tgrunt css

Alternatively, you can directly log in to the container directly run node/grunt commands.

tdocker run nodejs bash
# go to your source directory and
npm install
./node_modules/.bin/grunt