point-of-sales/pos-frontend-ts/app/about/page.tsx

import { Container, Row, Col, Button } from 'react-bootstrap'

export default function MyPage() {
  return (
    <Container>
      <Row>
        <Col>
          <h1>Welcome to My Page</h1>
          <Button variant="primary">Click Me</Button>
        </Col>
      </Row>
    </Container>
  )
}