A quick script to replace all the alias module imports with relative imports.

replace-alias-with-relative-imports.ts

import ts from 'typescript';
import fs from 'fs';
import path from 'path';

const projectRoot = process.cwd();
const tsConfigPath = path.join(projectRoot, 'tsconfig.json');

const tsConfig = ts.readConfigFile(tsConfigPath, ts.sys.readFile).config;
const parsedTsConfig = ts.parseJsonConfigFileContent(tsConfig, ts.sys, projectRoot);

function resolvePath(from: string, to: string): string {
  const resolvedPath = path.relative(path.dirname(from), to);
  return resolvedPath.startsWith('.') ? resolvedPath : `./${resolvedPath}`;
}

function replacePathsInFile(filePath: string) {
  let fileContent = fs.readFileSync(filePath, 'utf8');
  const regex = /from\s+['"]~\/(.*?)['"]/g;

  fileContent = fileContent.replace(regex, (match, p1) => {
    const absolutePath = path.join(parsedTsConfig.options.baseUrl || '', 'src', p1);
    const relativePath = resolvePath(filePath, absolutePath);
    return `from '${relativePath}'`;
  });

  fs.writeFileSync(filePath, fileContent, 'utf8');
}

parsedTsConfig.fileNames.forEach((file) => {
  replacePathsInFile(file);
});

This assumes that the alias is "~/*": ["./src/*"]