I'm currently working in the US as a software engineer under H-1B. Can I start a company in my home country (Canada) while living in America? If so, can I deve

I'm currently working in the US as a software engineer under H-1B. Can I start a company in my home country (Canada) while living in America? If so, can I develop/work for that company, while simultaneously working for my H-1B sponsoring company?