What could be improved in the cli application
`````
#!/usr/bin/env node

const fs = require('fs');
const path = require('path');
const readline = require('readline');
const { program } = require('commander');

const CONFIG_FILE = path.join(__dirname, 'config.json');

// Helper function to read the dataset
function readDataset() {
  const config = JSON.parse(fs.readFileSync(CONFIG_FILE, 'utf8'));
  return fs.readFileSync(config.datasetPath, 'utf8');
}

// Helper function to write to the dataset
function writeDataset(data) {
  const config = JSON.parse(fs.readFileSync(CONFIG_FILE, 'utf8'));
  fs.writeFileSync(config.datasetPath, data);
}

// Helper function to parse the dataset
function parseDataset(data) {
  const units = data.split('\n\n');
  return units.map(unit => {
    const lines = unit.split('\n');
    const parsedUnit = {};
    lines.forEach(line => {
      const [key, value] = line.split(': ');
      parsedUnit[key.toLowerCase()] = value;
    });
    return parsedUnit;
  });
}

// Helper function to format a data unit
function formatDataUnit(unit) {
  return `Name: ${unit.name}\nTitle: ${unit.title}\nDescription: ${unit.description}`;
}

// Helper function for interactive prompts
function prompt(question) {
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
  });

  return new Promise(resolve => {
    rl.question(question, answer => {
      rl.close();
      resolve(answer);
    });
  });
}

// Command to edit dataset path
program
  .command('edit')
  .alias('e')
  .description('Edit the dataset path')
  .action(async () => {
    const datasetPath = await prompt('Enter the dataset path: ');
    const config = { datasetPath };
    fs.writeFileSync(CONFIG_FILE, JSON.stringify(config, null, 2));
    console.log('Dataset path updated successfully.');
  });

// Command to view config
program
  .command('config')
  .alias('c')
  .description('View the current dataset path')
  .action(() => {
    const config = JSON.parse(fs.readFileSync(CONFIG_FILE, 'utf8'));
    console.log(`Current dataset path: ${config.datasetPath}`);
  });

// Command to add a data unit
program
  .command('add')
  .alias('a')
  .description('Add a new data unit')
  .action(async () => {
    const name = await prompt('Enter Name: ');
    const title = await prompt('Enter Title: ');
    const description = await prompt('Enter Description: ');

    const newUnit = formatDataUnit({ name, title, description });
    const data = readDataset();
    const updatedData = data ? `${data}\n\n${newUnit}` : newUnit;

    const save = await prompt('Save changes? (y/n): ');
    if (save.toLowerCase() === 'y') {
      writeDataset(updatedData);
      console.log('Data unit added successfully.');
    } else {
      console.log('Changes discarded.');
    }
  });

// Command to modify a data unit
program
  .command('modify <key> <name>')
  .alias('m')
  .description('Modify a data unit (key must be name, title, or description)')
  .action(async (key, name) => {
    const validKeys = ['name', 'title', 'description'];
    
    if (!validKeys.includes(key.toLowerCase())) {
      console.log(`Error: Invalid key "${key}". Valid keys are: ${validKeys.join(', ')}`);
      return;
    }

    const data = readDataset();
    const units = parseDataset(data);
    const unitIndex = units.findIndex(unit => unit.name === name);

    if (unitIndex === -1) {
      console.log(`No data unit found with Name: ${name}`);
      return;
    }

    const newValue = await prompt(`Enter new ${key}: `);
    units[unitIndex][key.toLowerCase()] = newValue;

    const updatedData = units.map(formatDataUnit).join('\n\n');

    const save = await prompt('Save changes? (y/n): ');
    if (save.toLowerCase() === 'y') {
      writeDataset(updatedData);
      console.log('Data unit modified successfully.');
    } else {
      console.log('Changes discarded.');
    }
  });

// Command to delete data units
program
  .command('delete <names...>')
  .alias('d')
  .description('Delete one or more data units')
  .action((names) => {
    const data = readDataset();
    let units = parseDataset(data);
    const initialCount = units.length;

    units = units.filter(unit => !names.includes(unit.name));
    const updatedData = units.map(formatDataUnit).join('\n\n');

    writeDataset(updatedData);
    console.log(`${initialCount - units.length} data unit(s) deleted successfully.`);
  });

// Command to find data units
program
  .command('find <names...>')
  .alias('f')
  .description('Find one or more data units')
  .action((names) => {
    const data = readDataset();
    const units = parseDataset(data);

    const foundUnits = units.filter(unit => names.includes(unit.name));

    if (foundUnits.length === 0) {
      console.log('No matching data units found.');
    } else if (foundUnits.length === 1) {
      console.log(formatDataUnit(foundUnits[0]));
    } else {
      console.log(foundUnits.map(formatDataUnit).join('\n\n'));
    }
  });

// Error handling
program.on('command:*', () => {
  console.error('Invalid command. Use --help for a list of available commands.');
  process.exit(1);
});

program.parse(process.argv);

// If no arguments, show help
if (!process.argv.slice(2).length) {
  program.outputHelp();
`````