Use "Gulp"

1. The main commands are in the file - gulpfile.js

2. To deploy a server - gulp watch

3. To generate the production version - gulp build

There is a separate command for generating SVG sprite - gulp svg
*All icons are located here: src/includes/svg-sprite/item, generating SVG sprite.
By name can be called in html:

4. there is a command for image optimization - gulp img
*You must first uncomment the line 121 (// .pipe(tiny())) in file gulpfile.js

Main Documentation for "Gulp":
https://gulpjs.com/docs/en/getting-started/quick-start