Install any Bolt Component via npm as it's docs suggest. If you were going to install the Card, you'd run:

npm install --save @bolt/components-card

Then add it to .boltrc.js:

module.exports = { buildDir: 'www/build', components: { global: [ + '@bolt/components-card', ], individual: [ ], }, };

Continue to do so with as many components as you'd like.