At present HubSpot offer no way to integrate and build apps in this way. Those apps you've listed are all native connectors configured by HubSpot and are part of the data sync feature available on Operations Hub Free and Starter. With that said, you could certainly explore creating your own interface and leveraging the appropriate APIs but it wouldn't be a like for like to the connectors built by HubSpot. I know that it's possible to create settings/configuration pages for your apps which may help: https://developers.hubspot.com/docs/api/create-an-app-settings-page.
At present HubSpot offer no way to integrate and build apps in this way. Those apps you've listed are all native connectors configured by HubSpot and are part of the data sync feature available on Operations Hub Free and Starter. With that said, you could certainly explore creating your own interface and leveraging the appropriate APIs but it wouldn't be a like for like to the connectors built by HubSpot. I know that it's possible to create settings/configuration pages for your apps which may help: https://developers.hubspot.com/docs/api/create-an-app-settings-page.