build.js

// node build.js [file] -o [output]
// install terser and minimist
import{minify}from"terser";
import{readFile, writeFile}from"fs/promises";
import m from "minimist";
let p = m(process.argv.slice(2));
let a = p._[0]
if (a){
  (async()=>{
    const i=await readFile(a,"utf8"),
    s=await minify(i);
    await writeFile(p.o || a,s.code)
    console.log(`✅ Built ${a} ${p.o?("at "+p.o):""}`)
  })();
} else {
  console.error("❎ No file specified");
}