Optimize minifier

[timneutkens]

Currently more than half of the next build time is spent in running minification (Terser).

@developit has some ideas on how to optimize this.

[imedadel]

I tried using ESBuild for minification only instead of Terser but you seem to be compiling packages before using them? So, I couldn't configure it with Next.js.

Would you like to try ESBuild?

[timneutkens]

Would you like to try ESBuild?

When it compresses in a similar ballpark to Terser we'd be happy to investigate adding it.

I'm going to close this issue for now given that we're working on webpack 5 support which has stable build output that can be reliably cached: #13341 this will allow us to avoid most of the work that was previously done on every build.

[balazsorban44]

This issue has been automatically locked due to no recent activity. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.