Made of little things.

import { readFileSync } from 'node:fs';
import { resolve, dirname } from 'node:path';
import { runInNewContext } from 'node:vm';
import ts from 'typescript';
const cache = new Map();
export function load(file) {
  file = resolve(file);
  if (cache.has(file)) return cache.get(file);
  const module = { exports: {} };
  cache.set(file, module.exports);
  const source = ts.transpileModule(readFileSync(file, 'utf8'), {
    compilerOptions: {
      module: ts.ModuleKind.CommonJS,
      target: ts.ScriptTarget.ES2022,
    },
  }).outputText;
  runInNewContext(source, {
    exports: module.exports,
    module,
    structuredClone,
    console,
    Math,
    Number,
    Array,
    Object,
    Map,
    Set,
    JSON,
    require: (name) =>
      name === '@napplet/sdk'
        ? {}
        : name.endsWith('.json')
          ? JSON.parse(readFileSync(resolve(dirname(file), name), 'utf8'))
          : load(resolve(dirname(file), name.replace(/\.js$/, '.ts'))),
  });
  return module.exports;
}