adding an "IDX" FOR A MLS system

i understand that i can add this IDX to my site so I can access my MLS >>does
anyone know how to do ? on the intro , it said its not available now , but can be added.

https://support.wix.com/en/article/request-idx-mls-integration
https://github.com/wix/wix-code-mls
https://support.wix.com/en/article/corvid-managing-external-code-libraries-with-the-package-manager
https://support.wix.com/en/article/corvid-accessing-third-party-services-with-the-fetch-api
https://support.wix.com/en/article/corvid-calling-server-side-code-from-the-front-end-with-web-modules

https://support.idxbroker.com/customer/en/portal/articles/2632247-integrating-idx-with-a-wix-site

thanks s so much for that info,being the novice that i am …still looks fairly involved .is there anyone that would like to do this for me ? and the fee? i have used other pre made sites before but was not happy with the seo and being able to add is more desirable …thoughts? me main concern is driving traffic to site, having customers search only on site and some other key areas of interest.