Your inquiry seems quite broad, don't you think?
Have you thought about how your development process currently appears? How do you plan to compile your Less code?
Remember, it's important to compile your Less code into static CSS for production use. While the in-browser version is available, it may not be suitable for all situations.
The basic idea is to compile your Less code into CSS files first. You can simply compile a file like styles.less into styles.css and then upload it to the wp-content/themes/yourtheme
directory. Alternatively, you can choose any other filename and include it using the wp_enqueue_style
function in your theme.
If you want to handle your Less code through the WordPress dashboard, consider installing the WP Less to CSS plugin. This tool automates the compilation of your Less code into static CSS files.
The JBST theme already incorporates the aforementioned Less plugin. For another approach, check out the Roots.io theme, which uses Less, npm, and grunt in its build processes.