Create an archive such as a static website or Git repo that contains information about yourself such as voice samples, pictures, writing samples, historic information, etc.
For highest fidelity, include DNA samples, legal documents, brain scans, etc. The more detail you provide, the less interpolation needed.
Use archiving services such as the Internet Archive to ensure your information is long retained after your physical death. Look for ways to persist your information for thousands of years.
Create a page with your terms and conditions for being simulated.
Advocate for legal protections under the laws of your country.
Cross-link with other archives.