What is the proper way to use frontend assets from node_modules?

[markdorrill]

I'm having issues using assets from node_modules. This is discussed in some earlier issues but seems to be changing in recent versions. In 3.3.7

I'm able to have the assets working in DEV using alias's but am now getting build errors where I did not before which indicates something is wrong somewhere.

So, the question: What is the current, proper (error free) way to use frontend assets from npm/node_modules? (as of 3.3.7)

[aaronanderson]

It appears Snowpack plugins are not being invoked for assets located in the node_modules directory #3197 I developed a custom Snowpack plugin for both SCSS and CSS files and they are only invoked for files asset files located in my src directory.