old_contents: const fs = require('fs');
  const { promisify } = require('util');
  
  const readdir = promisify(fs.readdir);
  
  const pages = '.next/static/blog/pages';
  
  const fileSizeOverrides = [
    { file: '_app.js', limit: '105 KB' },
    { file: '_error.js', limit: '4079 B' },
    { file: 'index.js', limit: '1592 B' },
    { file: 'html5-progress-element.js', limit: '31131 B' },
    { file: 'javascript-classes.js', limit: '29.42 KB' },
    { file: 'object-lifecycle-cheatsheet.js', limit: '30694 B' },
    { file: 'rack-key-concepts.js', limit: '29.88 KB' },
    { file: 'time-to-hex.js', limit: '30642 B' },
    { file: 'changelog.js', limit: '140 KB' },
  ];
  
  const getPageSize = async () => {
    try {
      const files = await readdir(pages);
      return files.map(file => {
        const config = {
          path: `${pages}/${file}`,
          webpack: false,
        };
  
        const applyOverride = fileSizeOverrides.find(
          override => override.file === file
        );
  
        if (applyOverride) {
          return { ...config, limit: applyOverride.limit };
        }
  
        return { ...config, limit: '20 KB' };
      });
    } catch (err) {
      console.error(err);
      return undefined;
    }
  };
  
  module.exports = getPageSize();
  
new_contents: const fs = require('fs');
  const { promisify } = require('util');
  
  const readdir = promisify(fs.readdir);
  
  const pages = '.next/static/blog/pages';
  
  const fileSizeOverrides = [
    { file: '_app.js', limit: '105 KB' },
    { file: '_error.js', limit: '4 KB' },
    { file: 'index.js', limit: '1592 B' },
    { file: 'html5-progress-element.js', limit: '31131 B' },
    { file: 'javascript-classes.js', limit: '29.42 KB' },
    { file: 'object-lifecycle-cheatsheet.js', limit: '30694 B' },
    { file: 'rack-key-concepts.js', limit: '29.88 KB' },
    { file: 'time-to-hex.js', limit: '30642 B' },
    { file: 'changelog.js', limit: '140 KB' },
  ];
  
  const getPageSize = async () => {
    try {
      const files = await readdir(pages);
      return files.map(file => {
        const config = {
          path: `${pages}/${file}`,
          webpack: false,
        };
  
        const applyOverride = fileSizeOverrides.find(
          override => override.file === file
        );
  
        if (applyOverride) {
          return { ...config, limit: applyOverride.limit };
        }
  
        return { ...config, limit: '20 KB' };
      });
    } catch (err) {
      console.error(err);
      return undefined;
    }
  };
  
  module.exports = getPageSize();
  
subject: update size-limts